1# Nearby stars and star orbits out to 25 light years, supplementary 2# to Celestia's stars.dat. 3 4# Data are mainly derived from the RECONS survey tabulation at 5# http://www.chara.gsu.edu/RECONS/TOP100.posted.htm. In particular, the 6# distances given are derived from RECONS's weighted average parallaxes, 7# rather than pure Hipparcos data. Additional definitions are provided 8# for some stars within 25 light years which are beyond the limit of RECONS 9# tabulation: these are non-Hipparcos stars, multiple stars, and stars 10# with other known properties not present in stars.dat. 11 12# Orbits are taken from Staffan S�derhjelm's "Visual binary orbits and 13# masses post Hipparcos" A&A 1999; 34: 121-40 14# (http://adsabs.harvard.edu/abs/1999A&A...341..121S), unless newer data 15# have been found. If orbits don't appear in S�derhjelm, they have been 16# taken from the Sixth Catalog of Orbits of Visual Binary Stars 17# (http://ad.usno.navy.mil/wds/orb6.html) and the Ninth Catalogue of 18# Spectroscopic Binary Orbits (http://sb9.astro.ulb.ac.be). Other sources 19# appear as comments for individual star systems. 20 21# For binary orbits, the direction of an orbit's node on the plane of the 22# sky is often unknown - the orbits given below will appear correct when 23# viewed from Earth, but the true orbit may be tilted either towards 24# or away from the Earth. 25# For a few orbits the nature of the node is known - these are 26# marked with the phrase "fully specified orientation". 27# Barycenter positions are based on mass estimates from S�derhjelm or RECONS: 28# the figures used are added as comments below. 29 30Barycenter "Solar System Barycenter:SSB" 31{ 32 RA 0 33 Dec 0 34 Distance 0 35} 36 370 "Sol:Sun" 38{ 39 OrbitBarycenter "Solar System Barycenter" 40 CustomOrbit "vsop87-sun" 41 42 SpectralType "G2V" 43 AbsMag 4.83 44 45 UniformRotation 46 { 47 Period 609.12 # 25.38 days 48 Inclination 7.25 49 AscendingNode 75.77 50 MeridianAngle 23.00 # standard meridian 51 } 52} 53 5470890 # Proxima Cen 55{ 56 RA 217.429167 57 Dec -62.679444 58 Distance 4.242 59 SpectralType "M5.0V" 60 AppMag 11.05 61} 62 63Barycenter "Rigil Kentaurus:Toliman:ALF Cen:Gliese 559" 64{ 65 RA 219.899437 # mass ratio 1.12:0.93 66 Dec -60.835401 # 67 Distance 4.365 68} 69 7071683 # ALF Cen A 71{ 72 OrbitBarycenter "ALF Cen" 73 SpectralType "G2V" 74 AppMag 0.01 75 76 EllipticalOrbit { 77 Period 79.85 78 SemiMajorAxis 10.68 # mass ratio 1.12:0.93 79 Eccentricity 0.52 80 Inclination 82.22 81 AscendingNode 67.30 82 ArgOfPericenter 4.02 83 MeanAnomaly 200.13 84 } 85} 86 8771681 # ALF cen B 88{ 89 OrbitBarycenter "ALF Cen" 90 SpectralType "K0V" 91 AppMag 1.34 92 93 EllipticalOrbit { 94 Period 79.85 95 SemiMajorAxis 12.87 # mass ratio 1.12:0.93 96 Eccentricity 0.52 97 Inclination 82.22 98 AscendingNode 67.30 99 ArgOfPericenter 184.02 100 MeanAnomaly 200.13 101 } 102} 103 10487937 # Barnard's Star 105{ 106 RA 269.452083 107 Dec 4.693333 108 Distance 5.979 109 SpectralType "M3.5V" 110 AppMag 9.57 111} 112 113"CN Leo:Gliese 406:Wolf 359" 114{ 115 RA 164.121783 116 Dec 7.014722 117 Distance 7.782 118 SpectralType "M5.5V" 119 AppMag 13.53 120} 121 12254035 # Lalande 21185 123{ 124 RA 165.834167 125 Dec 35.970000 126 Distance 8.294 127 SpectralType "M2.0V" 128 AppMag 7.47 129} 130 131Barycenter 32349 "Sirius:Alhabor:ALF CMa:9 CMa:Gliese 244:ADS 5423" 132{ 133 RA 101.287083 134 Dec -16.716111 135 Distance 8.583 136} 137 138"Sirius A:Alhabor A:ALF CMa A:9 CMa A:Gliese 244 A:ADS 5423 A" 139{ 140 OrbitBarycenter "Sirius" 141 SpectralType "A1V" 142 AppMag -1.43 143 144 EllipticalOrbit { # fully specified orientation 145 Period 50.09 146 SemiMajorAxis 6.73 # mass ratio 1.99:1.03 147 Eccentricity 0.5923 148 Inclination 97.51 149 AscendingNode 161.33 150 ArgOfPericenter 4.56 151 MeanAnomaly 40.89 152 } 153} 154 155"Sirius B:Alhabor B:ALF CMa B:9 CMa B:Gliese 244 B:ADS 5423 B" 156{ 157 OrbitBarycenter "Sirius" 158 SpectralType "DA2" 159 AppMag 8.44 160 161 EllipticalOrbit { # fully specified orientation 162 Period 50.09 163 SemiMajorAxis 13.00 # mass ratio 1.99:1.03 164 Eccentricity 0.592 165 Inclination 97.51 166 AscendingNode 161.33 167 ArgOfPericenter 184.56 168 MeanAnomaly 40.89 169 } 170} 171 172Barycenter "Gliese 65:Luyten 726-8" 173{ 174 RA 24.755529 175 Dec -17.950278 176 Distance 8.728 177} 178 179"BL Cet:Gliese 65 A:Luyten 726-8 A" 180{ 181 OrbitBarycenter "Gliese 65" 182 SpectralType "M5.5V" 183 AppMag 12.61 184 185 EllipticalOrbit { 186 Period 26.52 187 SemiMajorAxis 2.61 # mass ratio 0.1:0.1 188 Eccentricity 0.62 189 Inclination 101.3 190 AscendingNode 159.5 191 ArgOfPericenter 39.7 192 MeanAnomaly 21.3 193 } 194} 195 196"UV Cet:Gliese 65 B:Luyten 726-8 B" 197{ 198 OrbitBarycenter "Gliese 65" 199 SpectralType "M6.0V" 200 AppMag 13.06 201 202 EllipticalOrbit { 203 Period 26.52 204 SemiMajorAxis 2.61 # mass ratio 0.1:0.1 205 Eccentricity 0.62 206 Inclination 101.3 207 AscendingNode 159.5 208 ArgOfPericenter 219.7 209 MeanAnomaly 21.3 210 } 211} 212 21392403 # Ross 154 214{ 215 RA 282.455833 216 Dec -23.836111 217 Distance 9.672 218 SpectralType "M3.5V" 219 AppMag 10.44 220} 221 222"HH And:Gliese 905:Ross 248" 223{ 224 RA 355.479875 225 Dec 44.177222 226 Distance 10.310 227 SpectralType "M5.5V" 228 AppMag 12.29 229} 230 23116537 # Eps Eri 232{ 233 RA 53.232500 234 Dec -9.458333 235 Distance 10.480 236 SpectralType "K2V" 237 AppMag 3.73 238} 239 240114046 # Lacaille 9352 241{ 242 RA 346.466667 243 Dec -35.853056 244 Distance 10.691 245 SpectralType "M1.0V" 246 AppMag 7.34 247} 248 24957548 # Ross 128 250{ 251 RA 176.935000 252 Dec 0.804444 253 Distance 10.940 254 SpectralType "M4.0V" 255 AppMag 11.16 256} 257 258# Delfosse, X. et al. (1999) "New Neighbours I: 13 new 259# companions to nearby M dwarfs" A&A, 344, 897 260# (http://arxiv.org/abs/astro-ph/9812008) 261Barycenter "Gliese 866:Luyten 789-6" 262{ 263 RA 339.640833 264 Dec -15.300806 265 Distance 11.266 266} 267 268Barycenter "Gliese 866 A:Luyten 789-6 A" 269{ 270 OrbitBarycenter "Gliese 866" 271 272 EllipticalOrbit { 273 Period 2.2506 274 SemiMajorAxis 0.42 # mass ratio 0.106:(0.105+0.095) 275 Eccentricity 0.437 276 Inclination 96.2 277 AscendingNode 133.5 278 ArgOfPericenter 76.4 279 MeanAnomaly 241.7 280 } 281} 282 283"EZ Aqr:Gliese 866 Aa:Luyten 789-6 Aa" 284{ 285 OrbitBarycenter "Gliese 866 A" 286 SpectralType "M5.0V" 287 AppMag 13.03 288 289 EllipticalOrbit { 290 Period 0.010 # 3.8dys 291 SemiMajorAxis 0.013 # to match period and mass ratio 0.105:0.095 292 Inclination 96 # guess - to match plane of B 293 AscendingNode 133 # guess - to match plane of B 294 } 295} 296 297"Gliese 866 Ab:Luyten 789-6 Ab" 298{ 299 OrbitBarycenter "Gliese 866 A" 300 SpectralType "M6V" # from apparent magnitude 301 AppMag 15.07 302 303 EllipticalOrbit { 304 Period 0.010 # 3.8dys 305 SemiMajorAxis 0.014 # to match period and mass ratio 0.105:0.095 306 Inclination 96 # guess - to match plane of B 307 AscendingNode 133 # guess - to match plane of B 308 ArgOfPericenter 180 309 } 310} 311 312"Gliese 866 B:Luyten 789-6 B" 313{ 314 OrbitBarycenter "Gliese 866" 315 SpectralType "M5V" # from apparent magnitude 316 AppMag 13.27 317 318 EllipticalOrbit { 319 Period 2.2506 320 SemiMajorAxis 0.78 # mass ratio 0.106:(0.105+0.095) 321 Eccentricity 0.437 322 Inclination 96.2 323 AscendingNode 133.5 324 ArgOfPericenter 256.4 325 MeanAnomaly 241.7 326 } 327} 328 329Barycenter "61 Cyg:Gliese 820:ADS 14636" 330{ 331 RA 316.714507 # mass ratio 0.7:0.63 332 Dec 38.738139 # 333 Distance 11.401 334} 335 336104214 "61 Cyg A:V1803 Cyg:Gliese 820 A:ADS 14636 A" 337{ 338 OrbitBarycenter "61 Cyg" 339 SpectralType "K5V" 340 AppMag 5.20 341 342 EllipticalOrbit { 343 Period 659 344 SemiMajorAxis 40.40 # mass ratio 0.7:0.63 345 Eccentricity 0.48 346 Inclination 132 347 AscendingNode 165 348 ArgOfPericenter 195 349 MeanAnomaly 165 350 } 351} 352 353104217 "61 Cyg B:Gliese 820 B:ADS 14636 B" 354{ 355 OrbitBarycenter "61 Cyg" 356 SpectralType "K7V" 357 AppMag 6.03 358 359 EllipticalOrbit { 360 Period 659 361 SemiMajorAxis 44.90 # mass ratio 0.7:0.63 362 Eccentricity 0.48 363 Inclination 132 364 AscendingNode 165 365 ArgOfPericenter 15 366 MeanAnomaly 165 367 } 368} 369 370Barycenter 37279 "Procyon:Elgomaisa:ALF CMi:10 CMi:Gliese 280:ADS 6251" 371{ 372 RA 114.82724 373 Dec 5.2275076 374 Distance 11.438 375} 376 377"Procyon A:Elgomaisa A:ALF CMi A:10 CMi A:Gliese 280 A:ADS 6251 A" 378{ 379 OrbitBarycenter "Procyon" 380 SpectralType "F5IV" 381 AppMag 0.37 382 383 EllipticalOrbit { 384 Period 40.82 385 SemiMajorAxis 4.13 # mass ratio 1.57:0.6 386 Eccentricity 0.407 387 Inclination 42.9 388 AscendingNode 27.8 389 ArgOfPericenter 88.4 390 MeanAnomaly 282.5 391 } 392} 393 394"Procyon B:Elgomaisa B:ALF CMi B:10 CMi B:Gliese 280 B:ADS 6251 B" 395{ 396 OrbitBarycenter "Procyon" 397 SpectralType "DA" 398 AppMag 10.70 399 400 EllipticalOrbit { 401 Period 40.82 402 SemiMajorAxis 10.80 # mass ratio 1.57:0.6 403 Eccentricity 0.407 404 Inclination 42.9 405 AscendingNode 27.8 406 ArgOfPericenter 268.4 407 MeanAnomaly 282.5 408 } 409} 410 411Barycenter "Gliese 725:ADS 11632:Struve 2398" 412{ 413 RA 280.701371 # mass ratio 0.35:0.26 414 Dec 59.624455 # 415 Distance 11.492 416} 417 41891768 "Gliese 725 A:ADS 11632 A:Struve 2398 A" 419{ 420 OrbitBarycenter "Gliese 725" 421 SpectralType "M3.0V" 422 AppMag 8.90 423 424 EllipticalOrbit { 425 Period 408 426 SemiMajorAxis 20.91 # mass ratio 0.35:0.26 427 Eccentricity 0.53 428 Inclination 112 429 AscendingNode 146.1 430 ArgOfPericenter 243.5 431 MeanAnomaly 198.5 432 } 433} 434 43591772 "Gliese 725 B:ADS 11632 B:Struve 2398 B" 436{ 437 OrbitBarycenter "Gliese 725" 438 SpectralType "M3.5V" 439 AppMag 9.69 440 441 EllipticalOrbit { 442 Period 408 443 SemiMajorAxis 28.14 # mass ratio 0.35:0.26 444 Eccentricity 0.53 445 Inclination 112 446 AscendingNode 146.1 447 ArgOfPericenter 63.5 448 MeanAnomaly 198.5 449 } 450} 451 452Barycenter 1475 "Gliese 15:ADS 246:Groombridge 34" 453{ 454 RA 4.595417 455 Dec 44.023056 456 Distance 11.654 457} 458 459"GX And:Gliese 15 A:ADS 246 A:Groombridge 34 A" 460{ 461 OrbitBarycenter "Groombridge 34" 462 SpectralType "M1.5V" 463 AppMag 8.08 464 465 EllipticalOrbit { 466 Period 2600 467 SemiMajorAxis 36.1 # mass ratio 0.49:0.16 468 Eccentricity 0 469 Inclination 67.9 470 AscendingNode 308.4 471 MeanLongitude 23.0 472 } 473} 474 475"GQ And:Gliese 15 B:ADS 246 B:Groombridge 34 B" 476{ 477 OrbitBarycenter "Groombridge 34" 478 SpectralType "M3.5V" 479 AppMag 11.06 480 481 EllipticalOrbit { 482 Period 2600 483 SemiMajorAxis 110.7 # mass ratio 0.49:0.16 484 Eccentricity 0 485 Inclination 67.9 486 AscendingNode 308.4 487 MeanLongitude 203.0 488 } 489} 490 491Barycenter "EPS Ind:Gliese 845" # orbit of A & B components unknown 492{ 493 RA 330.841091 # mass ratio 0.77:(0.04+0.03) 494 Dec -56.780045 495 Distance 11.815 496} 497 498108870 "EPS Ind A:Gliese 845 A" 499{ 500 RA 330.82266 501 Dec -56.779804 502 Distance 11.815 503 SpectralType "K4V" 504 AppMag 4.68 505} 506 507# McCaughrean, M.J. et al.(2004) "Eps Indi Ba,Bb: The nearest binary 508# brown dwarf" A&A 413, 1029. 509# (http://arxiv.org/PS_cache/astro-ph/pdf/0309/0309256.pdf) 510Barycenter "EPS Ind B:CI Ind:Gliese 845 B" 511{ 512 RA 331.043833 513 Dec -56.782694 514 Distance 11.815 515} 516 517"EPS Ind Ba:CI Ind A:Gliese 845 Ba" 518{ 519 OrbitBarycenter "EPS Ind B" 520 SpectralType "T1V" 521 AbsMag 25.8 # for approximate radius in Celestia 522 523 EllipticalOrbit { 524 Period 15.5 # approximate orbit 525 SemiMajorAxis 0.99 # mass ratio 47:28J 526 } 527} 528 529"EPS Ind Bb:CI Ind B:Gliese 845 Bb" 530{ 531 OrbitBarycenter "EPS Ind B" 532 SpectralType "T6V" 533 AbsMag 33.5 # for approximate radius in Celestia 534 535 EllipticalOrbit { 536 Period 15.5 # approximate orbit 537 SemiMajorAxis 1.66 # mass ratio 47:28J 538 ArgOfPericenter 180 539 } 540} 541 542"DX Cnc:GJ 1111:Giclas 51-15" 543{ 544 RA 127.456125 545 Dec 26.775611 546 Distance 11.826 547 SpectralType "M6.0V" 548 AppMag 14.90 549} 550 5518102 # Tau Cet 552{ 553 RA 26.017083 554 Dec -15.937500 555 Distance 11.905 556 SpectralType "G8.5V" 557 AppMag 3.49 558} 559 560"GJ 1061:Luyten 372-58:RECONS 1" 561{ 562 RA 53.998750 563 Dec -44.512500 564 Distance 11.991 565 SpectralType "M5.0V" 566 AppMag 13.09 567} 568 5695643 # Luyten 725-032 570{ 571 RA 18.127500 572 Dec -16.999167 573 Distance 12.121 574 SpectralType "M4.0V" 575 AppMag 12.10 576} 577 57836208 # Luyten's Star 579{ 580 RA 111.852083 581 Dec 5.225833 582 Distance 12.251 583 SpectralType "M3.5V" 584 AppMag 9.85 585} 586 587# Biller B.A. et al.(2006) "Discovery of the Closest Brown Dwarf to 588# the Sun? A Methane Rich Brown Dwarf Around the Nearby M8.5 Star 589# SCR 1845" 590# (http://xxx.uni-augsburg.de/PS_cache/astro-ph/pdf/0601/0601441.pdf) 591Barycenter "SCR J1845-6357:SCR 1845-6357:2MASS J18450541-6357475:2MASS 1845-6357" 592{ 593 RA 281.260833 594 Dec -63.964444 595 Distance 12.569 596} 597 598"SCR J1845-6357 A:SCR 1845-6357 A:2MASS J18450541-6357475 A:2MASS 1845-6357 A" 599{ 600 OrbitBarycenter "SCR J1845-6357" 601 SpectralType "M8.5V" 602 AppMag 17.40 603 604 EllipticalOrbit { 605 Period 23.5 # estimate 606 SemiMajorAxis 1.6 # estimated mass ratio 0.07:0.045 607 ArgOfPericenter 180 608 } 609} 610 611"SCR J1845-6357 B:SCR 1845-6357 B:2MASS J18450541-6357475 B:2MASS 1845-6357 B" 612{ 613 OrbitBarycenter "SCR J1845-6357" 614 SpectralType "T6V" 615 AbsMag 33.5 # for approximate radius in Celestia 616 617 EllipticalOrbit { 618 Period 23.5 # estimate 619 SemiMajorAxis 2.4 # estimated mass ratio 0.07:0.045 620 } 621} 622 623"Teegarden's Star:2MASS J02530084+1652532:2MASS 0253+1652:SO J025300.5+165258:SO 0253+1652" 624{ 625 RA 43.253613 626 Dec 16.881389 627 Distance 12.573 628 SpectralType "M6.5V" 629 AppMag 15.14 630} 631 63224186 # Kapteyn's Star 633{ 634 RA 77.919167 635 Dec -45.018333 636 Distance 12.757 637 SpectralType "M2.0VI" 638 AppMag 8.85 639} 640 641105090 # Lacaille 8760 642{ 643 RA 319.313750 644 Dec -38.867500 645 Distance 12.869 646 SpectralType "K9.0V" 647 AppMag 6.67 648} 649 650"DENIS 1048-3956:RECONS 2:2MASS J10481463-3956062:2MASS 1048-3956" 651{ 652 Texture "browndwarf.*" 653 RA 162.061250 654 Dec -39.935000 655 Distance 13.124 656 SpectralType "M8.5V" 657 AppMag 17.39 658} 659 660Barycenter 110893 "Gliese 860:ADS 15972:Kruger 60" 661{ 662 RA 336.997917 663 Dec 57.695833 664 Distance 13.149 665} 666 667"Gliese 860 A:ADS 15972 A:Kruger 60 A" 668{ 669 OrbitBarycenter "Kruger 60" 670 SpectralType "M3.0V" 671 AppMag 9.79 672 673 EllipticalOrbit { 674 Period 44.64 675 SemiMajorAxis 3.53 # mass ratio 0.30:0.17 676 Eccentricity 0.41 677 Inclination 34.04 678 AscendingNode 120.09 679 ArgOfPericenter 269.84 680 MeanAnomaly 239.52 681 } 682} 683 684"DO Cep:Gliese 860 B:ADS 15972 B:Kruger 60 B" 685{ 686 OrbitBarycenter "Kruger 60" 687 SpectralType "M4.0V" 688 AppMag 11.41 689 690 EllipticalOrbit { 691 Period 44.64 692 SemiMajorAxis 6.23 # mass ratio 0.30:0.17 693 Eccentricity 0.41 694 Inclination 34.04 695 AscendingNode 120.09 696 ArgOfPericenter 89.84 697 MeanAnomaly 239.52 698 } 699} 700 701Barycenter 30920 "Gliese 234:Ross 614" 702{ 703 RA 97.347500 704 Dec -2.813889 705 Distance 13.343 706} 707 708"V577 Mon:Gliese 234 A:Ross 614 A" 709{ 710 OrbitBarycenter "Ross 614" 711 SpectralType "M4.5V" 712 AppMag 11.18 713 714 EllipticalOrbit { 715 Period 16.5 716 SemiMajorAxis 1.31 # mass ratio 0.22:0.09 717 Eccentricity 0.38 718 Inclination 54.18 719 AscendingNode 71.17 720 ArgOfPericenter 130.67 721 MeanAnomaly 0.00 722 } 723} 724 725"Gliese 234 B:Ross 614 B" 726{ 727 OrbitBarycenter "Ross 614" 728 SpectralType "M7V" 729 AppMag 14.26 730 731 EllipticalOrbit { 732 Period 16.5 733 SemiMajorAxis 3.19 # mass ratio 0.22:0.09 734 Eccentricity 0.38 735 Inclination 54.18 736 AscendingNode 71.17 737 ArgOfPericenter 310.67 738 MeanAnomaly 0.00 739 } 740} 741 742# The discovery of a very cool, very nearby brown dwarf 743# in the Galactic plane. Lucas et al. http://arxiv.org/abs/1004.0317v2 744"UGPS 0722-05:UGPS J0722-05:UGPS J072227.51-054031.2" 745{ 746 RA 110.613750 747 Dec -5.675000 748 Distance 13.367 749 SpectralType "T9.5" # actually T10 750 AppMag 36 # for approximate radius in Celestia 751} 752 75380824 # Wolf 1061 754{ 755 RA 247.575417 756 Dec -12.662500 757 Distance 13.916 758 SpectralType "M3.5V" 759 AppMag 10.10 760} 761 7623829 # van Maanen's Star 763{ 764 RA 12.291250 765 Dec 5.388611 766 Distance 14.017 767 SpectralType "DZ7" 768 AppMag 12.40 769} 770 771439 # Cordoba 32416 772 773{ 774 RA 1.351667 775 Dec -37.357500 776 Distance 14.161 777 SpectralType "M1.5V" 778 AppMag 8.54 779} 780 781Barycenter "Gliese 473:Wolf 424" 782{ 783 RA 188.321667 784 Dec 9.020833 785 Distance 14.312 786} 787 788"Gliese 473 A:Wolf 424 A" 789{ 790 OrbitBarycenter "Wolf 424" 791 SpectralType "M5.0V" 792 AppMag 13.25 793 794 EllipticalOrbit { 795 Period 15.9 796 SemiMajorAxis 1.92 # mass ratio 0.14:0.13 797 Eccentricity 0.3 798 Inclination 28.7 799 AscendingNode 359.5 800 ArgOfPericenter 81.1 801 MeanAnomaly 169.8 802 } 803} 804 805"FL Vir:Gliese 473 B:Wolf 424 B" 806{ 807 OrbitBarycenter "Wolf 424" 808 SpectralType "M5.0V" 809 AppMag 13.24 810 811 EllipticalOrbit { 812 Period 15.9 813 SemiMajorAxis 2.06 # mass ratio 0.14:0.13 814 Eccentricity 0.3 815 Inclination 28.7 816 AscendingNode 359.5 817 ArgOfPericenter 261.1 818 MeanAnomaly 169.8 819 } 820} 821 822"TZ Ari:Gliese 83.1:Luyten 1159-16" 823{ 824 RA 30.055000 825 Dec 13.052222 826 Distance 14.509 827 SpectralType "M4.0V" 828 AppMag 12.31 829} 830 83186162 # Gliese 687 832{ 833 RA 264.107917 834 Dec 68.339167 835 Distance 14.794 836 SpectralType "M3.0V" 837 AppMag 9.17 838} 839 840"GJ 3622:LP 731-58" 841{ 842 RA 162.052500 843 Dec -11.337222 844 Distance 14.805 845 SpectralType "M6.5V" 846 AppMag 15.73 847} 848 849Barycenter "GJ 1245" # orbit of A & B components unknown 850{ 851 RA 298.477317 # mass ratio (0.11+0.07):0.10 852 Dec 44.415377 # 853 Distance 14.812 854} 855 856Barycenter "GJ 1245 A" 857{ 858 RA 298.475833 859 Dec 44.415278 860 Distance 14.812 861} 862 863 864"V1581 Cyg:GJ 1245 Aa" 865{ 866 OrbitBarycenter "GJ 1245 A" 867 SpectralType "M5.5V" 868 AppMag 13.46 869 870 EllipticalOrbit { 871 Period 15.22 872 SemiMajorAxis 0.49 # mass ratio 0.11:0.07 873 Eccentricity 0.32 874 Inclination 20 875 AscendingNode 197 876 ArgOfPericenter 58 877 MeanAnomaly 40 878 } 879} 880 881"GJ 1245 Ab" 882{ 883 OrbitBarycenter "GJ 1245 A" 884 SpectralType "M7.5V" # from low luminosity 885 AppMag 16.75 886 887 EllipticalOrbit { 888 Period 15.22 889 SemiMajorAxis 0.78 # mass ratio 0.11:0.07 890 Eccentricity 0.32 891 Inclination 20 892 AscendingNode 197 893 ArgOfPericenter 238 894 MeanAnomaly 40 895 } 896} 897 898"GJ 1245 B" 899{ 900 RA 298.480000 901 Dec 44.415556 902 Distance 14.812 903 SpectralType "M6.0V" 904 AppMag 14.01 905} 906 90785523 # Gliese 674 908{ 909 RA 262.166250 910 Dec -46.895278 911 Distance 14.818 912 SpectralType "M2.5V" 913 AppMag 9.37 914} 915 91657367 # Luyten 145-141 917{ 918 RA 176.428750 919 Dec -64.841389 920 Distance 15.092 921 SpectralType "DQ6" 922 AppMag 11.50 923} 924 925113020 # Ross 780 926{ 927 RA 343.319583 928 Dec -14.263611 929 Distance 15.208 930 SpectralType "M3.5V" 931 AppMag 10.18 932} 933 934"GJ 1002" 935{ 936 RA 1.682500 937 Dec -7.539444 938 Distance 15.313 939 SpectralType "M5.0V" 940 AppMag 13.77 941} 942 943"GJ 3618:Luyten 143-23" 944{ 945 RA 161.132500 946 Dec -61.193889 947 Distance 15.554 948 SpectralType "M5.5V" 949 AppMag 13.92 950} 951 952Barycenter 54211 "Gliese 412:Lalande 21258" # orbits of A & B unknown 953{ 954 RA 166.370443 # mass ratio 0.48:0.10 955 Dec 43.525816 # 956 Distance 15.859 957} 958 959"Gliese 412 A:Lalande 21258 A" 960{ 961 RA 166.369167 962 Dec 43.526667 963 Distance 15.859 964 SpectralType "M1.0V" 965 AppMag 8.77 966} 967 968"WX UMa:Gliese 412 B:Lalande 21258 B" 969{ 970 RA 166.376667 971 Dec 43.521667 972 Distance 15.859 973 SpectralType "M5.5V" 974 AppMag 14.44 975} 976 97749908 # Groombridge 1618 978{ 979 RA 152.842083 980 Dec 49.454167 981 Distance 15.869 982 SpectralType "K7.0V" 983 AppMag 6.59 984} 985 986"AD Leo:Gliese 388" 987{ 988 RA 154.901667 989 Dec 19.869444 990 Distance 15.942 991 SpectralType "M2.5V" 992 AppMag 9.29 993} 994 995106440 # Luyten 354-89 996{ 997 RA 323.391667 998 Dec -49.008889 999 Distance 16.144 1000 SpectralType "M1.5V" 1001 AppMag 8.66 1002} 1003 1004"LP 944-20" 1005{ 1006 Texture "browndwarf.*" 1007 RA 54.896667 1008 Dec -35.428056 1009 Distance 16.195 1010 SpectralType "M9.0V" 1011 AppMag 18.69 1012} 1013 1014"DENIS 0255-4700:2MASS J02550357-4700509:2MASS 0255-4700" 1015{ 1016 RA 43.765417 1017 Dec -47.014444 1018 Distance 16.197 1019 SpectralType "L7.5V" 1020 AppMag 22.92 1021} 1022 1023Barycenter 19849 "Keid:OMI2 Eri:40 Eri:Gliese 166:ADS 3093" # Orbits of A & (BC) unknown 1024{ 1025 RA 63.828351 # mass ratio 0.89:(0.5+0.20) 1026 Dec -7.655829 # 1027 Distance 16.255 1028} 1029 1030"Keid A:OMI2 Eri A:40 Eri A:Gliese 166 A:ADS 3093 A" 1031{ 1032 RA 63.817917 1033 Dec -7.652778 1034 Distance 16.255 1035 SpectralType "K0.5V" 1036 AppMag 4.43 1037} 1038 1039Barycenter "Keid B-C:OMI2 Eri B-C:40 Eri B-C:Gliese 166 B-C" 1040{ 1041 RA 63.841667 1042 Dec -7.659722 1043 Distance 16.255 1044} 1045 1046"Keid B:OMI2 Eri B:40 Eri B:Gliese 166 B:ADS 3093 B" 1047{ 1048 OrbitBarycenter "Keid B-C" 1049 SpectralType "DA4" 1050 AppMag 9.52 1051 1052 EllipticalOrbit { 1053 Period 252.1 1054 SemiMajorAxis 9.97 # mass ratio 0.5:0.2 1055 Eccentricity 0.41 1056 Inclination 84.4 1057 AscendingNode 215.2 1058 ArgOfPericenter 90.4 1059 MeanAnomaly 214.77 1060 } 1061} 1062 1063"Keid C:OMI2 Eri C:40 Eri C:DY Eri:Gliese 166 C:ADS 3093 C" 1064{ 1065 OrbitBarycenter "Keid B-C" 1066 SpectralType "M4.0V" 1067 AppMag 11.24 1068 1069 EllipticalOrbit { 1070 Period 252.1 1071 SemiMajorAxis 24.92 # mass ratio 0.5:0.2 1072 Eccentricity 0.41 1073 Inclination 84.4 1074 AscendingNode 215.2 1075 ArgOfPericenter 270.4 1076 MeanAnomaly 214.77 1077 } 1078} 1079 1080112460 # EV Lac 1081{ 1082 RA 341.702083 1083 Dec 44.330833 1084 Distance 16.455 1085 SpectralType "M3.5V" 1086 AppMag 10.22 1087} 1088 108986214 # Gliese 682 1090{ 1091 RA 264.265417 1092 Dec -44.319167 1093 Distance 16.465 1094 SpectralType "M4.0V" 1095 AppMag 10.95 1096} 1097 1098Barycenter 88601 "70 Oph:Gliese 702:ADS 11046:Struve 2272" 1099{ 1100 RA 271.363750 1101 Dec 2.500000 1102 Distance 16.644 1103} 1104 1105"70 Oph A:Gliese 702 A:ADS 11046 A:Struve 2272 A" 1106{ 1107 OrbitBarycenter "70 Oph" 1108 SpectralType "K0V" 1109 AppMag 4.21 1110 1111 EllipticalOrbit { 1112 Period 88.34 1113 SemiMajorAxis 10.55 # mass ratio 0.88:0.73 1114 Eccentricity 0.50 1115 Inclination 116.40 1116 AscendingNode 331.07 1117 ArgOfPericenter 341.25 1118 MeanAnomaly 63.90 1119 } 1120} 1121 1122"70 Oph B:Gliese 702 B:ADS 11046 B:Struve 2272 B" 1123{ 1124 OrbitBarycenter "70 Oph" 1125 SpectralType "K5V" 1126 AppMag 6.01 1127 1128 EllipticalOrbit { 1129 Period 88.34 1130 SemiMajorAxis 12.72 # mass ratio 0.88:0.73 1131 Eccentricity 0.50 1132 Inclination 116.40 1133 AscendingNode 331.07 1134 ArgOfPericenter 161.25 1135 MeanAnomaly 63.90 1136 } 1137} 1138 113997649 # Altair 1140{ 1141 RA 297.695833 1142 Dec 8.868333 1143 Distance 16.692 1144 SpectralType "A7IV" 1145 AppMag 0.77 1146 1147 RotationPeriod 10.4 1148 SemiAxes [ 1 0.88 1 ] # equatorial radius 14% greater than polar 1149} 1150 1151Barycenter "GJ 1116" # orbit of A & B unknown 1152{ 1153 RA 134.562083 # mass ratio 0.11:0.10 1154 Dec 19.762724 # 1155 Distance 17.059 1156} 1157 1158"EI Cnc:GJ 1116 A" 1159{ 1160 RA 134.562083 1161 Dec 19.761944 1162 Distance 17.059 1163 SpectralType "M5.5V" 1164 AppMag 14.06 1165} 1166 1167"GJ 1116 B:LP 426-40" 1168{ 1169 RA 134.562083 1170 Dec 19.763611 1171 Distance 17.059 1172 SpectralType "M5.5V" 1173 AppMag 14.92 1174} 1175 1176"GJ 3379:Giclas 99-49" 1177{ 1178 RA 90.015000 1179 Dec 2.705556 1180 Distance 17.097 1181 SpectralType "M3.5V" 1182 AppMag 11.31 1183} 1184 1185"GJ 3323:LP 656-38:RECONS 3" 1186{ 1187 RA 75.487500 1188 Dec -6.946389 1189 Distance 17.357 1190 SpectralType "M4.0V" 1191 AppMag 12.22 1192} 1193 1194# Leggett S.K. et al. (2009) "The phyical properties of four 1195# 600K T dwarfs." ApJ, 695, 1517. 1196# (http://arxiv.org/abs/0901.4093) 1197# unresolved binary; separation and orbit unknown 1198"2MASS J09393548-2448279 A:2MASS 0939-2448 A" 1199{ 1200 RA 144.897823 1201 Dec -24.80775 1202 Distance 17.414 1203 SpectralType "T8V" 1204 AbsMag 38 # estimate for radius in Celestia 1205} 1206 1207"2MASS J09393548-2448279 B:2MASS 0939-2448 B" 1208{ 1209 RA 144.897843 1210 Dec -24.80775 1211 Distance 17.414 1212 SpectralType "T8V" 1213 AbsMag 38 # estimate for radius in Celestia 1214} 1215 121657544 # Gliese 445 1217{ 1218 RA 176.922500 1219 Dec 78.691111 1220 Distance 17.418 1221 SpectralType "M3.5V" 1222 AppMag 10.79 1223} 1224 122567155 # Lalande 25372 1226{ 1227 RA 206.432500 1228 Dec 14.891389 1229 Distance 17.657 1230 SpectralType "M1.0V" 1231 AppMag 8.46 1232} 1233 1234Barycenter 21088 "Gliese 169.1:Stein 2051" # orbit of A & B unknown 1235{ 1236 RA 67.796397 # mass ratio 0.224:0.50 1237 Dec 58.977167 # 1238 Distance 18.068 1239} 1240 1241"Gliese 169.1 A:Stein 2051 A" 1242{ 1243 RA 67.799375 1244 Dec 58.977167 1245 Distance 18.068 1246 SpectralType "M4V" 1247 AppMag 11.04 1248} 1249 1250"Gliese 169.1 B:Stein 2051 B" 1251{ 1252 RA 67.795063 1253 Dec 58.977167 1254 Distance 18.068 1255 SpectralType "DC5" 1256 AppMag 12.43 1257} 1258 125933226 # Wolf 294 1260{ 1261 RA 103.704167 1262 Dec 33.268056 1263 Distance 18.313 1264 SpectralType "M3.0V" 1265 AppMag 10.02 1266} 1267 1268"2MASS J18353790+3259545:2MASS 1835+3259" 1269{ 1270 RA 278.907917 1271 Dec 32.998333 1272 Distance 18.480 1273 SpectralType "M8.5V" 1274 AppMag 18.27 1275} 1276 127725878 # Wolf 1453 1278{ 1279 RA 82.864167 1280 Dec -3.677222 1281 Distance 18.533 1282 SpectralType "M1.0V" 1283 AppMag 7.95 1284} 1285 1286103039 # LP 816-60 1287{ 1288 RA 313.137500 1289 Dec -16.974722 1290 Distance 18.635 1291 SpectralType "M3.5V" 1292 AppMag 11.50 1293} 1294 1295"2MASS J04151954-0935066:2MASS 0415-0935" 1296{ 1297 RA 63.83125 1298 Dec -9.585 1299 Distance 18.709 1300 SpectralType "T8.0V" 1301 AbsMag 38 # for approximate radius in Celestia 1302} 1303 130496100 # Sig Dra 1305{ 1306 RA 293.090000 1307 Dec 69.661111 1308 Distance 18.768 1309 SpectralType "G9V" 1310 AppMag 4.67 1311} 1312 1313Barycenter 29295 "Gliese 229:Luyten 668-21:LPM 230" # orbit of A & B unknown 1314{ 1315 RA 92.644265 # mass ratio 0.556:0.05 1316 Dec -21.864482 # 1317 Distance 18.770 1318} 1319 1320"Gliese 229 A:Luyten 668-21 A:LPM 230 A" 1321{ 1322 RA 92.644231 1323 Dec -21.864643 1324 Distance 18.770 1325 SpectralType "M1.5V" 1326 AppMag 8.14 1327} 1328 1329"Gliese 229 B:Luyten 668-21 B:LPM 230 B" 1330{ 1331 RA 92.644643 1332 Dec -21.862692 1333 Distance 18.770 1334 SpectralType "T6.0V" 1335 AbsMag 33 # very approx 1336} 1337 133826857 # Ross 47 1339{ 1340 RA 85.538750 1341 Dec 12.489444 1342 Distance 19.018 1343 SpectralType "M4.0V" 1344 AppMag 11.57 1345} 1346 134786990 # Luyten 205-128 1348{ 1349 RA 266.642500 1350 Dec -57.319167 1351 Distance 19.063 1352 SpectralType "M3.0V" 1353 AppMag 10.76 1354} 1355 1356Barycenter 94761 "Gliese 752:Ross 652:Wolf 1055" # orbit of A & B unknown 1357{ 1358 RA 289.232026 # mass ratio 0.494:0.073 1359 Dec 5.166493 # 1360 Distance 19.078 1361} 1362 1363"V1428 Aql:Gliese 752 A:Ross 652 A:Wolf 1055 A" 1364{ 1365 RA 289.230417 1366 Dec 5.1688889 1367 Distance 19.078 1368 SpectralType "M2.5V" 1369 AppMag 9.10 1370} 1371 1372"Van Biesbroek's Star:V1298 Aql:Gliese 752 B:Ross 652 B:Wolf 1055 B:VB 10" 1373{ 1374 RA 289.242917 1375 Dec 5.150278 1376 Distance 19.078 1377 SpectralType "M8.0V" 1378 AppMag 17.45 1379} 1380 1381Barycenter "Gliese 570:ADS 9446" 1382{ 1383 RA 224.363404 # mass ratio 0.76:(0.49+0.34) 1384 Dec -21.413381 # 1385 Distance 19.116 1386} 1387 138873184 "KX Lib:Gliese 570 A:ADS 9446 A" # fully specified orientation 1389{ 1390 OrbitBarycenter "Gliese 570" 1391 SpectralType "K4V" 1392 AppMag 5.64 1393 1394 EllipticalOrbit { 1395 Period 2130 1396 SemiMajorAxis 99.39 # mass ratio 0.76:(0.49+0.34) 1397 Eccentricity 0.2 1398 Inclination 142.62 1399 AscendingNode 191.56 1400 ArgOfPericenter 129.2 1401 MeanAnomaly 52.6 1402 } 1403} 1404 1405Barycenter 73182 "Gliese 570 B-C" # fully specified orientation 1406{ 1407 OrbitBarycenter "Gliese 570" 1408 1409 EllipticalOrbit { 1410 Period 2130 1411 SemiMajorAxis 91.01 # mass ratio 0.76:(0.49+0.34) 1412 Eccentricity 0.2 1413 Inclination 142.62 1414 AscendingNode 191.56 1415 ArgOfPericenter 309.2 1416 MeanAnomaly 52.6 1417 } 1418} 1419 1420"Gliese 570 B:ADS 9446 B" 1421{ 1422 OrbitBarycenter "Gliese 570 B-C" 1423 SpectralType "M1.5V" 1424 AppMag 8.30 1425 1426 EllipticalOrbit { 1427 Period 0.847 1428 SemiMajorAxis 0.34 # mass ratio 0.49:0.34 1429 Eccentricity 0.76 1430 Inclination 93.84 1431 AscendingNode 246.91 1432 ArgOfPericenter 214.71 1433 MeanAnomaly 34.00 1434 } 1435} 1436 1437"Gliese 570 C:ADS 9446 C" 1438{ 1439 OrbitBarycenter "Gliese 570 B-C" 1440 SpectralType "M3V" 1441 AppMag 9.96 1442 1443 EllipticalOrbit { 1444 Period 0.847 1445 SemiMajorAxis 0.48 # mass ratio 0.49:0.34 1446 Eccentricity 0.76 1447 Inclination 93.84 1448 AscendingNode 246.91 1449 ArgOfPericenter 34.71 1450 MeanAnomaly 34.00 1451 } 1452} 1453 1454"Gliese 570 D:ADS 9446 D" 1455{ 1456 RA 224.312500 1457 Dec -21.363889 1458 Distance 19.116 1459 SpectralType "T7V" 1460 AbsMag 38 # very approx 1461} 1462 1463"Gliese 754:Luyten 347-14" 1464{ 1465 RA 290.200833 1466 Dec -45.558889 1467 Distance 19.280 1468 SpectralType "M4.0V" 1469 AppMag 12.23 1470} 1471 147276074 # Gliese 588 1473{ 1474 RA 233.053750 1475 Dec -41.275556 1476 Distance 19.355 1477 SpectralType "M2.5V" 1478 AppMag 9.31 1479} 1480 1481Barycenter 1242 "GJ 1005:Luyten 722-22" 1482{ 1483 RA 3.867083 1484 Dec -16.133889 1485 Distance 19.374 1486} 1487 1488"GJ 1005 A:Luyten 722-22 A" 1489{ 1490 OrbitBarycenter "Luyten 722-22" 1491 SpectralType "M3.5V" 1492 AppMag 11.60 1493 1494 EllipticalOrbit { 1495 Period 4.566 1496 SemiMajorAxis 0.62 # mass ratio 0.18:0.11 1497 Eccentricity 0.364 1498 Inclination 72.3 1499 AscendingNode 85.2 1500 ArgOfPericenter 169.4 1501 MeanAnomaly 5.4 1502 } 1503} 1504 1505"GJ 1005 B:Luyten 722-22 B" 1506{ 1507 OrbitBarycenter "Luyten 722-22" 1508 SpectralType "M7V" 1509 AppMag 14.02 1510 1511 EllipticalOrbit { 1512 Period 4.566 1513 SemiMajorAxis 1.01 # mass ratio 0.18:0.11 1514 Eccentricity 0.364 1515 Inclination 72.3 1516 AscendingNode 85.2 1517 ArgOfPericenter 349.4 1518 MeanAnomaly 5.4 1519 } 1520} 1521 1522Barycenter 3821 "Achird:ETA Cas:24 Cas:Gliese 34:ADS 671" 1523{ 1524 RA 12.27625 1525 Dec 57.815278 1526 Distance 19.388 1527} 1528 1529"Achird A:ETA Cas A:24 Cas A:Gliese 34 A:ADS 671 A" 1530{ 1531 OrbitBarycenter "Achird" 1532 SpectralType "G3V" 1533 AppMag 3.46 1534 1535 EllipticalOrbit { 1536 Period 480 1537 SemiMajorAxis 24.99 # mass ratio 1.11:0.60 1538 Eccentricity 0.497 1539 Inclination 152.19 1540 AscendingNode 6.96 1541 ArgOfPericenter 179.63 1542 MeanAnomaly 82.80 1543 } 1544} 1545 1546"Achird B:ETA Cas B:24 Cas B:Gliese 34 B:ADS 671 B" 1547{ 1548 OrbitBarycenter "Achird" 1549 SpectralType "K7.0V" 1550 AppMag 7.21 1551 1552 EllipticalOrbit { 1553 Period 480 1554 SemiMajorAxis 46.24 # mass ratio 1.11:0.60 1555 Eccentricity 0.497 1556 Inclination 152.19 1557 AscendingNode 6.96 1558 ArgOfPericenter 359.63 1559 MeanAnomaly 82.80 1560 } 1561} 1562 1563Barycenter "36 Oph:Gliese 663:ADS 10417" # orbit of (AB) & C unknown 1564{ 1565 RA 258.901180 # mass ratio (0.85+0.85):0.7 1566 Dec -26.586250 # 1567 Distance 19.401 1568} 1569 1570Barycenter 84405 "36 Oph A-B:Gliese 663 A-B" 1571{ 1572 RA 258.837500 1573 Dec -26.602778 1574 Distance 19.401 1575} 1576 1577"36 Oph A:Gliese 663 A:ADS 10417 A" 1578{ 1579 OrbitBarycenter "36 Oph A-B" 1580 SpectralType "K1.5V" 1581 AppMag 5.07 1582 1583 EllipticalOrbit { 1584 Period 470.9 1585 SemiMajorAxis 38.8 # mass ratio 0.85:0.85 1586 Eccentricity 0.916 1587 Inclination 13.35 1588 AscendingNode 348.86 1589 ArgOfPericenter 271.0 1590 MeanAnomaly 246.3 1591 } 1592} 1593 1594"36 Oph B:Gliese 663 B:ADS 10417 B" 1595{ 1596 OrbitBarycenter "36 Oph A-B" 1597 SpectralType "K1V" 1598 AppMag 5.08 1599 1600 EllipticalOrbit { 1601 Period 470.9 1602 SemiMajorAxis 38.8 # mass ratio 0.85:0.85 1603 Eccentricity 0.916 1604 Inclination 13.35 1605 AscendingNode 348.86 1606 ArgOfPericenter 91.0 1607 MeanAnomaly 246.3 1608 } 1609} 1610 161184478 "36 Oph C:V2215 Oph:Gliese 664:Gliese 663 C:ADS 10417 C" 1612{ 1613 RA 259.055833 1614 Dec -26.546111 1615 Distance 19.401 1616 SpectralType "K5V" 1617 AppMag 6.32 1618} 1619 1620117473 # Gliese 908 1621{ 1622 RA 357.302083 1623 Dec 2.401111 1624 Distance 19.412 1625 SpectralType "M1.0V" 1626 AppMag 8.98 1627} 1628 162937766 # Ross 882 1630{ 1631 RA 116.167500 1632 Dec 3.552500 1633 Distance 19.509 1634 SpectralType "M4.0V" 1635 AppMag 11.19 1636} 1637 1638Barycenter 99461 "Gliese 783:CD-36 13940:J Herschel 5173:HJ 5173" # orbit of A & B unknown 1639{ 1640 RA 302.798770 # mass ratio 0.82:0.20 1641 Dec -36.097603 # 1642 Distance 19.618 1643} 1644 1645"Gliese 783 A:CD-36 13940 A:J Herschel 5173 A:HJ 5173 A" 1646{ 1647 RA 302.79837 1648 Dec -36.097385 1649 Distance 19.618 1650 SpectralType "K2.5V" 1651 AppMag 5.31 1652} 1653 1654"Gliese 783 B:CD-36 13940 B:J Herschel 5173 B:HJ 5173 B" 1655{ 1656 RA 302.8004 1657 Dec -36.09849 1658 Distance 19.618 1659 SpectralType "M4.0V" 1660 AppMag 11.50 1661} 1662 166315510 # 82 Eri 1664{ 1665 RA 49.981667 1666 Dec -43.069722 1667 Distance 19.711 1668 SpectralType "G8V" 1669 AppMag 4.26 1670} 1671 1672"GJ 1221:LP 44-113" 1673{ 1674 RA 267.027917 1675 Dec 70.874722 1676 Distance 19.804 1677 SpectralType "DXP9" 1678 AppMag 14.22 1679} 1680 1681Barycenter "Gliese 338:ADS 7251:Struve 1321" 1682{ 1683 RA 138.598959 1684 Dec 52.775278 1685 Distance 19.921 1686} 1687 168845343 "Gliese 338 A:ADS 7251 A:Struve 1321 A" 1689{ 1690 OrbitBarycenter "Struve 1321" 1691 SpectralType "M0V" 1692 AppMag 7.64 1693 1694 EllipticalOrbit { 1695 Period 975 1696 SemiMajorAxis 51.58 # mass ratio 06:0.6 1697 Eccentricity 0.28 1698 Inclination 113 1699 AscendingNode 13 1700 ArgOfPericenter 276 1701 MeanAnomaly 264 1702 } 1703} 1704 1705120005 "Gliese 338 B:ADS 7251 B:Struve 1321 B" 1706{ 1707 OrbitBarycenter "Struve 1321" 1708 SpectralType "K7V" 1709 AppMag 7.70 1710 1711 EllipticalOrbit { 1712 Period 975 1713 SemiMajorAxis 51.58 # mass ratio 06:0.6 1714 Eccentricity 0.28 1715 Inclination 113 1716 AscendingNode 13 1717 ArgOfPericenter 96 1718 MeanAnomaly 264 1719 } 1720} 1721 172299240 # Del Pav 1723{ 1724 RA 302.181667 1725 Dec -66.181944 1726 Distance 19.923 1727 SpectralType "G8IV" 1728 AppMag 3.55 1729} 1730 1731# Delfosse, X. et al. (1999) "New Neighbours I: 13 new 1732# companions to nearby M dwarfs" A&A, 344, 897 1733# (http://arxiv.org/abs/astro-ph/9812008) 1734Barycenter 34603 "Gliese 268:Ross 986" 1735{ 1736 RA 107.5075 1737 Dec 38.529444 1738 Distance 19.960 1739} 1740 1741"QY Aur:Gliese 268 A:Ross 986 A" 1742{ 1743 OrbitBarycenter "Ross 986" 1744 SpectralType "M4.5V" 1745 AppMag 12.05 1746 1747 EllipticalOrbit { 1748 Period 0.02856 # 10.43dy 1749 SemiMajorAxis 0.03 # mass ratio 0.17:0.16 1750 ArgOfPericenter 180 1751 } 1752} 1753 1754"Gliese 268 B:Ross 986 B" 1755{ 1756 OrbitBarycenter "Ross 986" 1757 SpectralType "M6V" 1758 AppMag 12.45 1759 1760 EllipticalOrbit { 1761 Period 0.02856 # 10.43dy 1762 SemiMajorAxis 0.03 # mass ratio 0.17:0.16 1763 } 1764} 1765 1766"2MASS J09373487+2931409:2MASS 0937+2931" 1767{ 1768 RA 144.391667 1769 Dec 29.516667 1770 Distance 19.973 1771 SpectralType "T6.0V" 1772 AbsMag 33 # for approximate radius in Celestia 1773} 1774 177599701 # Gliese 784 1776{ 1777 RA 303.472500 1778 Dec -45.163889 1779 Distance 20.215 1780 SpectralType "M0.0V" 1781 AppMag 7.95 1782} 1783 178471253 # Gliese 555 1785{ 1786 RA 218.570000 1787 Dec -12.519444 1788 Distance 20.286 1789 SpectralType "M4.0V" 1790 AppMag 11.32 1791} 1792 1793Barycenter 116132 "Gliese 896" 1794{ 1795 RA 352.967500 1796 Dec 19.937222 1797 Distance 20.401 1798} 1799 1800Barycenter "Gliese 896 A" 1801{ 1802 OrbitBarycenter "Gliese 896" 1803 1804 EllipticalOrbit { 1805 Period 359 1806 SemiMajorAxis 15.12 # mass ratio (0.34+0.13):(0.16+0.09) 1807 Eccentricity 0.2 1808 Inclination 19.6 1809 AscendingNode 138.8 1810 ArgOfPericenter 119.1 1811 MeanAnomaly 352.0 1812 } 1813} 1814 1815Barycenter "Gliese 896 B" 1816{ 1817 OrbitBarycenter "Gliese 896" 1818 1819 EllipticalOrbit { 1820 Period 359 1821 SemiMajorAxis 28.44 # mass ratio (0.34+0.13):(0.16+0.09) 1822 Eccentricity 0.2 1823 Inclination 19.6 1824 AscendingNode 138.8 1825 ArgOfPericenter 299.1 1826 MeanAnomaly 352.0 1827 } 1828} 1829 1830"EQ Peg:Gliese 896 Aa" 1831{ 1832 OrbitBarycenter "Gliese 896 A" 1833 SpectralType "M3.5V" 1834 AppMag 10.27 1835 1836 EllipticalOrbit { 1837 Period 3.5 # "of the order of a few years" 1838 SemiMajorAxis 0.5 # mass ratio 0.34:0.13 1839 ArgOfPericenter 180 1840 Inclination 20 # to match orbital plane 1841 AscendingNode 140 # of system 1842 } 1843 1844} 1845 1846"Gliese 896 Ab" 1847{ 1848 OrbitBarycenter "Gliese 896 A" 1849 SpectralType "M7V" # from apparent magnitude 1850 AppMag 13.26 1851 1852 EllipticalOrbit { 1853 Period 3.5 # "of the order of a few years" 1854 SemiMajorAxis 1.2 # mass ratio 0.34:0.13 1855 Inclination 20 # to match orbital plane 1856 AscendingNode 140 # of system 1857 } 1858} 1859 1860"Gliese 896 Ba" 1861{ 1862 OrbitBarycenter "Gliese 896 B" 1863 SpectralType "M4.5V" 1864 AppMag 12.21 1865 1866 EllipticalOrbit { 1867 Period 4.1 # "of the order of a few years" 1868 SemiMajorAxis 0.6 # mass ratio 0.16:0.09 1869 ArgOfPericenter 180 1870 Inclination 20 # to match orbital plane 1871 AscendingNode 140 # of system 1872 } 1873} 1874 1875"Gliese 896 Bb" 1876{ 1877 OrbitBarycenter "Gliese 896 B" 1878 SpectralType "M9V" # from apparent magnitude 1879 AppMag 15.40 1880 1881 EllipticalOrbit { 1882 Period 4.1 # "of the order of a few years" 1883 SemiMajorAxis 1.0 # mass ratio 0.16:0.09 1884 Inclination 20 # to match orbital plane 1885 AscendingNode 140 # of system 1886 } 1887} 1888 188974995 # Wolf 562 1890{ 1891 RA 229.861667 1892 Dec -7.722222 1893 Distance 20.669 1894 SpectralType "M3.0V" 1895 AppMag 10.57 1896} 1897 1898"LHS 2090:LP 368-128" 1899{ 1900 RA 135.098333 1901 Dec 21.834722 1902 Distance 20.792 1903 SpectralType "M6.0V" 1904 AppMag 16.10 1905} 1906 1907"LHS 337:Luyten 471-42:GJ 3737" 1908{ 1909 RA 189.704583 1910 Dec -38.381667 1911 Distance 20.804 1912 SpectralType "M4.0V" 1913 AppMag 12.75 1914} 1915 1916Barycenter 84140 "Gliese 661:BD+45 2505" 1917{ 1918 RA 258.032917 1919 Dec 45.665833 1920 Distance 20.865 1921} 1922 1923"Gliese 661 A:BD+45 2505 A" 1924{ 1925 OrbitBarycenter "Gliese 661" 1926 SpectralType "M3V" 1927 AppMag 9.93 1928 1929 EllipticalOrbit { 1930 Period 12.96 1931 SemiMajorAxis 2.43 # mass ratio 0.36:0.35 1932 Eccentricity 0.75 1933 Inclination 27.34 1934 AscendingNode 65.56 1935 ArgOfPericenter 138.70 1936 MeanAnomaly 248.89 1937 } 1938} 1939 1940"Gliese 661 B:BD+45 2505 B" 1941{ 1942 OrbitBarycenter "Gliese 661" 1943 SpectralType "M4V" 1944 AppMag 10.35 1945 1946 EllipticalOrbit { 1947 Period 12.96 1948 SemiMajorAxis 2.50 # mass ratio 0.36:0.35 1949 Eccentricity 0.75 1950 Inclination 27.34 1951 AscendingNode 65.56 1952 ArgOfPericenter 318.70 1953 MeanAnomaly 248.89 1954 } 1955} 1956 1957# Artigau E. et al. (2006) Discovery of the brightest T dwarf in the 1958# northern hemisphere." ApJ, 651, L57. 1959# (http://arxiv.org/abs/astro-ph/0609419) 1960"2MASS J01365662+0933473:2MASS 0136+0933:SIMP J013656.5+093347" 1961{ 1962 RA 24.235833 1963 Dec 9.563056 1964 Distance 20.874 1965 SpectralType "T2.5V" 1966 AbsMag 27 # for approximate radius in Celestia 1967} 1968 1969"Gliese 223.2:LP 658-2" 1970{ 1971 RA 88.790417 1972 Dec -4.171389 1973 Distance 20.901 1974 SpectralType "DZ9" 1975 AppMag 14.47 1976} 1977 1978"GJ 3959:Giclas 180-60" 1979{ 1980 RA 247.826667 1981 Dec 40.865000 1982 Distance 20.908 1983 SpectralType "M5.0V" 1984 AppMag 14.76 1985} 1986 1987# Delfosse, X. et al. (1999) "New Neighbours I: 13 new 1988# companions to nearby M dwarfs" A&A, 344, 897 1989# (http://arxiv.org/abs/astro-ph/9812008) 1990# Mazeh, T. et al. (2001) "Studies of multiple stellar systems - IV. The 1991# triple-lined spectroscopic system Gliese 644" MNRAS, 325, 343. 1992# (http://arxiv.org/abs/astro-ph/0102451) 1993Barycenter "Gliese 644:Wolf 630" # orbit of (AB) & C unknown 1994{ 1995 RA 253.872083 # mass ratio (0.41+0.34+0.30):0.08 1996 Dec -8.340536 # 1997 Distance 21.048 1998} 1999 2000Barycenter 82817 "Gliese 644 A-B:Wolf 630 A-B" 2001{ 2002 RA 253.870000 2003 Dec -8.336389 2004 Distance 21.048 2005} 2006 2007"V1054 Oph:Gliese 644 A:Wolf 630 A" 2008{ 2009 OrbitBarycenter "Wolf 630 A-B" 2010 SpectralType "M2.5V" 2011 AppMag 9.72 2012 2013 EllipticalOrbit { # fully specified orientation 2014 Period 1.71727 2015 SemiMajorAxis 0.86 # mass ratio 0.45:(0.34+0.30) 2016 Eccentricity 0.043 2017 Inclination 69.7 2018 AscendingNode 0.1 2019 ArgOfPericenter 224.0 2020 MeanAnomaly 325.6 2021 } 2022} 2023 2024Barycenter "Gliese 644 B:Wolf 630 B" 2025{ 2026 OrbitBarycenter "Wolf 630 A-B" 2027 2028 EllipticalOrbit { # fully specified orientation 2029 Period 1.71727 2030 SemiMajorAxis 0.60 # mass ratio 0.45:(0.34+0.30) 2031 Eccentricity 0.0433 2032 Inclination 69.7 2033 AscendingNode 0.1 2034 ArgOfPericenter 44.0 2035 MeanAnomaly 325.6 2036 } 2037} 2038 2039"Gliese 644 Ba:Wolf 630 Ba" 2040{ 2041 OrbitBarycenter "Wolf 630 B" 2042 SpectralType "M3V" 2043 AppMag 10.37 2044 2045 EllipticalOrbit { 2046 Period 0.008119 # 2.965522 dy 2047 SemiMajorAxis 0.017 # mass ratio 0.34:0.30 2048 Eccentricity 0.026 2049 Inclination 70 # orbit of Bab said to be 2050 AscendingNode 0 # in same plane as AB 2051 } 2052} 2053 2054"Gliese 644 Bb:Wolf 630 Bb" 2055{ 2056 OrbitBarycenter "Wolf 630 B" 2057 SpectralType "M4V" 2058 AppMag 10.87 2059 2060 EllipticalOrbit { 2061 Period 0.008119 # 2.965522 dy 2062 SemiMajorAxis 0.018 # mass ratio 0.34:0.30 2063 Eccentricity 0.026 2064 Inclination 70 # orbit of Bab said to be 2065 AscendingNode 0 # in same plane as AB 2066 ArgOfPericenter 180 2067 } 2068} 2069 2070"Gliese 644 C:Wolf 630 C:VB 8" 2071{ 2072 RA 253.899167 2073 Dec -8.394444 2074 Distance 21.048 2075 SpectralType "M7V" 2076 AppMag 16.78 2077} 2078 207982809 "Gliese 643:Wolf 629" 2080{ 2081 RA 253.855000 2082 Dec -8.322500 2083 Distance 21.048 2084 SpectralType "M3.5V" 2085 AppMag 11.80 2086} 2087 208880459 # Gliese 625 2089{ 2090 RA 246.352500 2091 Dec 54.304167 2092 Distance 21.298 2093 SpectralType "M1.5V" 2094 AppMag 10.10 2095} 2096 2097"GJ 1128:LHS 271:Luyten 100-115" 2098{ 2099 RA 145.693333 2100 Dec -68.885000 2101 Distance 21.311 2102 SpectralType "M4.0V" 2103 AppMag 12.74 2104} 2105 2106"GL Vir:GJ 1156:Luyten 1190-34" 2107{ 2108 RA 184.751250 2109 Dec 11.125278 2110 Distance 21.332 2111 SpectralType "M4.5V" 2112 AppMag 13.80 2113} 2114 2115114622 # Gliese 892 2116{ 2117 RA 348.320833 2118 Dec 57.168333 2119 Distance 21.340 2120 SpectralType "K3V" 2121 AppMag 5.57 2122} 2123 2124"GJ 3877:LP 914-54" 2125{ 2126 RA 224.160417 2127 Dec -28.164167 2128 Distance 21.389 2129 SpectralType "M7.0V" 2130 AppMag 17.05 2131} 2132 213353767 # Ross 104 2134{ 2135 RA 165.017917 2136 Dec 22.833056 2137 Distance 21.843 2138 SpectralType "M2.5V" 2139 AppMag 10.02 2140} 2141 2142# Delfosse, X. et al. (1999) "New Neighbours I: 13 new 2143# companions to nearby M dwarfs" A&A, 344, 897 2144# (http://arxiv.org/abs/astro-ph/9812008) 2145Barycenter 106106 "Gliese 829:Ross 775" 2146{ 2147 RA 322.400816 2148 Dec 17.642376 2149 Distance 21.889 2150} 2151 2152"Gliese 829 A:Ross 775 A" 2153{ 2154 OrbitBarycenter "Ross 775" 2155 SpectralType "M3.0V" 2156 AppMag 11.05 2157 2158 EllipticalOrbit { 2159 Period 0.146 # 53.2dys 2160 SemiMajorAxis 0.11 # estimated from mass ratio 0.26:0.26 2161 ArgOfPericenter 180 2162 } 2163} 2164 2165"Gliese 829 B:Ross 775 B" 2166{ 2167 OrbitBarycenter "Ross 775" 2168 SpectralType "M3.5V" 2169 AppMag 11.05 2170 2171 EllipticalOrbit { 2172 Period 0.146 # 53.2dys 2173 SemiMajorAxis 0.11 # estimated from mass ratio 0.26:0.26 2174 } 2175} 2176 2177# Delfosse, X. et al. (1999) "New Neighbours I: 13 new 2178# companions to nearby M dwarfs" A&A, 344, 897 2179# (http://arxiv.org/abs/astro-ph/9812008) 2180Barycenter "GJ 3522:Giclas 41-14" 2181{ 2182 RA 134.734583 2183 Dec 8.473889 2184 Distance 22.089 2185} 2186 2187Barycenter "GJ 3522 A:Giclas 41-14 A" 2188{ 2189 OrbitBarycenter "Giclas 41-14" 2190 2191 EllipticalOrbit { 2192 Period 11.8 # estimate 2193 SemiMajorAxis 1.3 # from AB separation and mass ratio (0.19+0.17):0.17 2194 } 2195} 2196 2197"GJ 3522 Aa:Giclas 41-14 Aa" 2198{ 2199 OrbitBarycenter "Giclas 41-14 A" 2200 SpectralType "M3.5V" 2201 AppMag 11.94 2202 2203 EllipticalOrbit { 2204 Period 0.021 # 7.6dys 2205 SemiMajorAxis 0.0255 # estimated from mass ratio 0.19:0.17 2206 } 2207} 2208 2209"GJ 3522 Ab:Giclas 41-14 Ab" 2210{ 2211 OrbitBarycenter "Giclas 41-14 A" 2212 SpectralType "M6V" # from estimated mass 2213 AppMag 12.14 2214 2215 EllipticalOrbit { 2216 Period 0.021 # 7.6dys 2217 SemiMajorAxis 0.0285 # estimated from mass ratio 0.19:0.17 2218 ArgOfPericenter 180 2219 } 2220} 2221 2222"GJ 3522 B:Giclas 41-14 B" 2223{ 2224 OrbitBarycenter "Giclas 41-14" 2225 SpectralType "M6V" # from mass 2226 AppMag 12.28 2227 2228 EllipticalOrbit { 2229 Period 11.8 # estimate 2230 SemiMajorAxis 2.9 # from AB separation and mass ratio (0.19+0.17):0.17 2231 ArgOfPericenter 180 2232 } 2233} 2234 2235Barycenter 72659 "XI Boo:37 Boo:Gliese 566:ADS 9413" 2236{ 2237 RA 222.847018 2238 Dec 19.100634 2239 Distance 22.102 2240} 2241 2242"XI Boo A:37 Boo A:Gliese 566 A:ADS 9413 A" 2243{ 2244 OrbitBarycenter "XI Boo" 2245 SpectralType "G7V" 2246 AppMag 4.67 2247 2248 EllipticalOrbit { 2249 Period 151.6 2250 SemiMajorAxis 13.93 # mass ratio 0.94:0.67 2251 Eccentricity 0.51 2252 Inclination 83.21 2253 AscendingNode 270.13 2254 ArgOfPericenter 158.75 2255 MeanAnomaly 215.38 2256 } 2257} 2258 2259"XI Boo B:37 Boo B:Gliese 566 B:ADS 9413 B" 2260{ 2261 OrbitBarycenter "XI Boo" 2262 SpectralType "K4V" 2263 AppMag 6.94 2264 2265 EllipticalOrbit { 2266 Period 151.6 2267 SemiMajorAxis 19.55 # mass ratio 0.94:0.67 2268 Eccentricity 0.51 2269 Inclination 83.21 2270 AscendingNode 270.13 2271 ArgOfPericenter 338.75 2272 MeanAnomaly 215.38 2273 } 2274} 2275 227653020 # Wolf 358 2277{ 2278 RA 162.718892 2279 Dec 6.810118 2280 Distance 22.165 2281 SpectralType "M4.0V" 2282 AppMag 11.65 2283} 2284 2285113296 # Ross 671 2286{ 2287 RA 344.147643 2288 Dec 16.554122 2289 Distance 22.284 2290 SpectralType "M1.5V" 2291 AppMag 8.65 2292} 2293 2294"Gliese 299:Ross 619" 2295{ 2296 RA 122.989583 2297 Dec 8.774444 2298 Distance 22.294 2299 SpectralType "M4.0V" 2300 AppMag 12.82 2301} 2302 2303Barycenter "Gliese 667:CD-34 11626" # orbit of (AB) & C unknown 2304{ 2305 RA 259.735861 # mass ratio (0.68+0.59):0.35 2306 Dec -34.990567 # 2307 Distance 22.296 2308} 2309 2310Barycenter 84709 "Gliese 667 A-B:CD-34 11626 A-B" 2311{ 2312 RA 259.734835 2313 Dec -34.989574 2314 Distance 22.296 2315} 2316 2317"Gliese 667 A:CD-34 11626 A" 2318{ 2319 OrbitBarycenter "Gliese 667 A-B" 2320 SpectralType "K4V" 2321 AppMag 5.90 2322 2323 EllipticalOrbit { 2324 Period 42.15 2325 SemiMajorAxis 5.75 # mass ratio 0.68:0.59 2326 Eccentricity 0.58 2327 Inclination 136.65 2328 AscendingNode 305.37 2329 ArgOfPericenter 183.60 2330 MeanAnomaly 205.84 2331 } 2332} 2333 2334"Gliese 667 B:CD-34 11626 B" 2335{ 2336 OrbitBarycenter "Gliese 667 A-B" 2337 SpectralType "K5V" 2338 AppMag 5.90 2339 2340 EllipticalOrbit { 2341 Period 42.15 2342 SemiMajorAxis 6.62 # mass ratio 0.68:0.59 2343 Eccentricity 0.58 2344 Inclination 136.65 2345 AscendingNode 305.37 2346 ArgOfPericenter 3.60 2347 MeanAnomaly 205.84 2348 } 2349} 2350 2351"Gliese 667 C:CD-34 11626 C" 2352{ 2353 RA 259.739583 2354 Dec -34.994167 2355 Distance 22.296 2356 SpectralType "M1.5V" 2357 AppMag 10.26 2358} 2359 236014101 "GJ 3192:LP 771-95 A:Luyten 730-18:RECONS 4" 2361{ 2362 RA 45.46411209 2363 Dec -16.593372777 2364 Distance 22.680 2365 SpectralType "M2.5V" 2366 AppMag 11.22 2367} 2368 2369"GJ 3193:LP 771-95 B:LP 771-96" 2370{ 2371 RA 45.46547306 2372 Dec -16.59479288 2373 Distance 22.680 2374 SpectralType "M3.5V" 2375 AppMag 11.79 2376} 2377 2378"LP 771-95 C" 2379{ 2380 RA 45.46432292 2381 Dec -16.59359277 2382 Distance 22.680 2383 SpectralType "M5V" 2384 AppMag 12.65 2385} 2386 2387# ============================================================= 2388# Additional stars between end of RECONS Top 100 and 25 ly: 2389# Non-Hipparcos and Hip stars with additional definitions 2390 2391"Gliese 293:Luyten 97-12" 2392{ 2393 RA 118.311250 2394 Dec -67.791944 2395 Distance 23.099 2396 SpectralType "DQ9" 2397 AppMag 14.08 2398} 2399 2400Barycenter 12114 "Gliese 105" # orbit of A & B unknown 2401{ 2402 RA 39.023977 # mass ratio (0.81+0.08):0.21 2403 Dec 6.880494 # 2404 Distance 23.420 2405} 2406 2407Barycenter "Gliese 105 A" 2408{ 2409 RA 39.015969 2410 Dec 6.883364 2411 Distance 23.420 2412} 2413 2414"Gliese 105 Aa" 2415{ 2416 OrbitBarycenter "Gliese 105 A" 2417 SpectralType "K3V" 2418 AppMag 5.81 2419 2420 EllipticalOrbit { 2421 Period 60 2422 SemiMajorAxis 1.3 # mass ratio 0.81:0.08 2423 Eccentricity 0.75 2424 Inclination 82 # "nearly face-on orbit" 2425 AscendingNode 310 # 2426 } 2427} 2428 2429"Gliese 105 Ab" 2430{ 2431 OrbitBarycenter "Gliese 105 A" 2432 SpectralType "M7.5V" 2433 AppMag 16.90 2434 2435 EllipticalOrbit { 2436 Period 60 2437 SemiMajorAxis 13.7 # mass ratio 0.81:0.08 2438 Eccentricity 0.75 2439 Inclination 82 # "nearly face-on orbit" 2440 AscendingNode 310 # 2441 ArgOfPericenter 180 2442 } 2443} 2444 2445"BX Cet:Gliese 105 B" 2446{ 2447 RA 39.057917 2448 Dec 6.868333 2449 Distance 23.420 2450 SpectralType "M3.5V" 2451 AppMag 11.66 2452} 2453 2454"GJ 1286" 2455{ 2456 RA 353.794583 2457 Dec -2.390278 2458 Distance 23.584 2459 SpectralType "M5.5V" 2460 AppMag 14.67 2461} 2462 2463"GJ 4083:LP 71-165" 2464{ 2465 RA 274.740417 2466 Dec 66.192222 2467 Distance 23.721 2468 SpectralType "M4.5V" 2469 AppMag 13.49 2470} 2471 2472# Dahn, C.C. et al. (2002) "Astrometry and photometry 2473# for cool dwarfs and brown dwarfs." AJ, 124, 1170 2474# (http://www.iop.org/EJ/abstract/-link=10023955/1538-3881/124/2/1170) 2475"2MASS J15074769-1627386:2MASS 1507-1627" 2476{ 2477 RA 226.948709 2478 Dec -16.460722 2479 Distance 23.912 2480 SpectralType "L5V" 2481 AbsMag 21 # for approximate radius in Celestia 2482} 2483 2484"GJ 4274:Luyten 788-34" 2485{ 2486 RA 335.777500 2487 Dec -17.606944 2488 Distance 24.268 2489 SpectralType "M4.5V" 2490 AppMag 13.26 2491} 2492 2493# Delfosse, X. et al. (1999) "New Neighbours I: 13 new 2494# companions to nearby M dwarfs" A&A, 344, 897 2495# (http://arxiv.org/abs/astro-ph/9812008) 2496Barycenter 83945 "GJ 3991:Giclas 203-47" 2497{ 2498 RA 257.380309 2499 Dec 43.682026 2500 Distance 24.284 2501} 2502 2503"GJ 3991 A:Giclas 203-47 A" 2504{ 2505 OrbitBarycenter "Giclas 203-47" 2506 SpectralType "M3.5V" 2507 AppMag 11.80 2508 2509 EllipticalOrbit { 2510 Period 0.04 # 15 days 2511 SemiMajorAxis 0.6 # estimated from mass ratio 0.3:0.5 2512 Eccentricity 0.07 2513 ArgOfPericenter 180 2514 } 2515} 2516 2517"GJ 3991 B:Giclas 203-47 B" 2518{ 2519 2520 OrbitBarycenter "Giclas 203-47" 2521 SpectralType "D" 2522 AbsMag 13.7 # for a 0.5-solar-mass white dwarf 2523 2524 EllipticalOrbit { 2525 Period 0.04 # 15 days 2526 SemiMajorAxis 0.4 # estimated from mass ratio 0.3:0.5 2527 Eccentricity 0.07 2528 } 2529} 2530 2531"GJ 1224" 2532{ 2533 RA 271.887083 2534 Dec -15.964167 2535 Distance 24.598 2536 SpectralType "M4.5V" 2537 AppMag 13.61 2538} 2539 2540# Drummond JD, Christou JC, Fugate RQ. Full adaptive optics images of 2541# ADS 9731 and mu Cassiopeiae: Orbits and masses. ApJ 1995; 450: 380-91 2542# http://cdsads.u-strasbg.fr//full/1995ApJ...450..380D/0000380.000.html 2543Barycenter 5336 "MU Cas:30 Cas:Gliese 53" 2544{ 2545 RA 17.053838 2546 Dec 54.924228 2547 Distance 24.638 2548} 2549 2550"MU Cas A:30 Cas A:Gliese 53 A" 2551{ 2552 OrbitBarycenter "MU Cas" 2553 SpectralType "G5VI" 2554 AppMag 5.17 2555 2556 EllipticalOrbit { # fully specified orientation 2557 Period 21.753 2558 SemiMajorAxis 1.437 # mass ratio 0.742:0.173 2559 Eccentricity 0.561 2560 Inclination 28.0 2561 AscendingNode 334.7 2562 ArgOfPericenter 135.0 2563 MeanAnomaly 41.52 2564 } 2565} 2566 2567"MU Cas B:30 Cas B:Gliese 53 B" 2568{ 2569 OrbitBarycenter "MU Cas" 2570 SpectralType "MVI" 2571 AppMag 11.00 2572 2573 EllipticalOrbit { # fully specified orientation 2574 Period 21.753 2575 SemiMajorAxis 6.165 # mass ratio 0.742:0.173 2576 Eccentricity 0.561 2577 Inclination 28.0 2578 AscendingNode 334.7 2579 ArgOfPericenter 315.0 2580 MeanAnomaly 41.52 2581 } 2582} 2583 2584"GJ 3378:Luyten 1813-21" 2585{ 2586 RA 90.290417 2587 Dec 59.598333 2588 Distance 24.691 2589 SpectralType "M3.5V" 2590 AppMag 11.71 2591} 2592 2593Modify 91262 # Vega� 2594{ 2595 SemiAxes [ 1 0.81 1 ] # equatorial radius 23% greater than polar 2596 2597 UniformRotation 2598 { 2599 Period 12.4 2600 Inclination 28 # rotation pole points 2601 AscendingNode 15 # towards solar system 2602 } 2603} 2604 2605Modify 113368 # Fomalhaut� 2606{ 2607 UniformRotation 2608 { 2609 Inclination 81.8 # rotation pole matches debris disk 2610 AscendingNode 176.6 # Bouquin et al. (2009) A&A 498, L41-44 2611# (http://www.aanda.org/index.php?option=article&access=doi&doi=10.1051/0004-6361/200911854) 2612 } 2613} 2614 2615#======================================================================== 2616# Nearby multiple star with poor Hipparcos parallax 2617 2618Barycenter 55203 "Alula Australis:XI UMa:53 UMa:Gliese 423:ADS 8119" 2619{ 2620 RA 169.54545 2621 Dec 31.529134 2622 Distance 27.294 2623} 2624 2625Barycenter "Alula Australis A:XI UMa A:53 UMa A:Gliese 423 A:ADS 8119 A" 2626{ 2627 OrbitBarycenter "Alula Australis" 2628 2629 EllipticalOrbit { # fully specified orientation 2630 Period 59.878 2631 SemiMajorAxis 9.30 # mass ratio (1.05+0.4):(1.05+0.08) 2632 Eccentricity 0.398 2633 Inclination 14.09 2634 AscendingNode 192.13 2635 ArgOfPericenter 9.69 2636 MeanAnomaly 29.62 2637 } 2638} 2639 2640Barycenter "Alula Australis B:XI UMa B:53 UMa B:Gliese 423 B:ADS 8119 B" 2641{ 2642 OrbitBarycenter "Alula Australis" 2643 2644 EllipticalOrbit { # fully specified orientation 2645 Period 59.878 2646 SemiMajorAxis 11.93 # mass ratio (1.05+0.4):(1.05+0.08) 2647 Eccentricity 0.398 2648 Inclination 14.09 2649 AscendingNode 192.13 2650 ArgOfPericenter 189.69 2651 MeanAnomaly 29.62 2652 } 2653} 2654 2655"Alula Australis Aa:XI UMa Aa:53 UMa Aa:Gliese 423 Aa" 2656{ 2657 OrbitBarycenter "Alula Australis A" 2658 SpectralType "G0V" 2659 AppMag 4.33 2660 2661 EllipticalOrbit { # fully specified orientation 2662 Period 1.832 2663 SemiMajorAxis 0.13 # mass ratio 1.05:0.4 2664 Eccentricity 0.53 2665 Inclination 137.0 2666 AscendingNode 298.1 2667 ArgOfPericenter 187.9 2668 MeanAnomaly 133.8 2669 } 2670} 2671 2672"Alula Australis Ab:XI UMa Ab:53 UMa Ab:Gliese 423 Ab" 2673{ 2674 OrbitBarycenter "Alula Australis A" 2675 SpectralType "M2V" # from estimated mass of 0.4 2676 AbsMag 9.3 # for estimated spectral class 2677 2678 EllipticalOrbit { # fully specified orientation 2679 Period 1.832 2680 SemiMajorAxis 0.35 # mass ratio 1.05:0.4 2681 Eccentricity 0.53 2682 Inclination 137.0 2683 AscendingNode 298.1 2684 ArgOfPericenter 7.9 2685 MeanAnomaly 133.8 2686 } 2687} 2688 2689"Alula Australis Ba:XI UMa Ba:53 UMa Ba:Gliese 423 Ba" 2690{ 2691 OrbitBarycenter "Alula Australis B" 2692 SpectralType "G0V" 2693 AppMag 4.8 2694 2695 EllipticalOrbit { 2696 Period 0.0109 # 3.98dy 2697 SemiMajorAxis 0.004 # mass ratio 1.05:0.08 2698 Eccentricity 0 2699 ArgOfPericenter 180 2700 } 2701} 2702 2703"Alula Australis Bb:XI UMa Bb:53 UMa Bb:Gliese 423 Bb" 2704{ 2705 OrbitBarycenter "Alula Australis B" 2706 SpectralType "L" # brown dwarf 2707 AbsMag 21 # for approximate radius in Celestia 2708 2709 EllipticalOrbit { 2710 Period 0.0109 # 3.981dy 2711 SemiMajorAxis 0.056 # mass ratio 1.05:0.08 2712 Eccentricity 0 2713 } 2714} 2715 2716# Washington Multiplicity Catalog 2717# (http://ad.usno.navy.mil/wds/wmc/wmc_post191.html) 2718"Alula Australis C:XI UMa C:53 UMa C:Gliese 423 C" 2719{ 2720 RA 169.53272 2721 Dec 31.539614 2722 Distance 27.294 2723 SpectralType "M7V" # from luminosity 2724 AppMag 15 2725} 2726 2727#====================================================== 2728# Delfosse, X. et al. (1999) "New Neighbours I: 13 new 2729# companions to nearby M dwarfs" A&A, 344, 897 2730# (http://arxiv.org/abs/astro-ph/9812008) 2731# RECONS parallax places system well beyond 20ly distance 2732# from Hipparcos 2733Barycenter "GJ 2130" # orbit of A & B unknown 2734{ 2735 RA 266.556484 # mass ratio 0.3:(0.19+0.15) 2736 Dec -32.102873 # 2737 Distance 48.536 2738} 2739 274086961 # GJ 2130 A 2741{ 2742 RA 266.552500 2743 Dec -32.103611 2744 Distance 48.536 2745 SpectralType "M2V" 2746 AppMag 10.49 2747} 2748 2749Barycenter 86963 "GJ 2130 B" #true separation of Bab not known 2750{ 2751 RA 266.56015 2752 Dec -32.102222 2753 Distance 48.536 2754} 2755 2756"GJ 2130 Ba:CD-32 13298 A" 2757{ 2758 RA 266.560000 2759 Dec -32.102222 2760 Distance 48.536 2761 SpectralType "M5.5V" # from apparent magnitude 2762 AppMag 11.75 2763} 2764 2765"GJ 2130 Bb:CD-32 13298 B" 2766{ 2767 RA 266.5603 2768 Dec -32.102222 2769 Distance 48.536 2770 SpectralType "M6.5V" # from apparent magnitude 2771 AppMag 12.75 2772} 2773 2774#=========================================================== 2775# Star with erroneously large parallax in Hipparcos 2776 277785605 2778{ 2779 RA 262.401250 2780 Dec 24.653055 2781 Distance 180 # from spectral class and ap. mag. 2782 SpectralType "K5" 2783 AppMag 11.15 2784} 2785 2786