Luhman 16 anyone?
Posted: 26.07.2019, 20:33
These relatively close brown dwarfs were very recently discovered (by astronomical and Celestia's standards) in 2013, so does anyone have an addon that includes them? Thanks.
Here is my nearstars.stc file for reference:
Here is my nearstars.stc file for reference:
Code: Select all
Barycenter "Solar System Barycenter:SSB"
{
RA 0
Dec 0
Distance 0
}
0 "Sol:Sun"
{
OrbitBarycenter "Solar System Barycenter"
#Texture sun1.*"
CustomOrbit "vsop87-sun"
SpectralType "G2V"
AbsMag 4.83
RotationPeriod 609.12 # 25.38 days
Obliquity 7.25 # correct orientation relative to ecliptic
EquatorAscendingNode 75.77 #
RotationOffset 23.00 # standard meridian
}
70890 # Proxima Cen
{
RA 217.429167
Dec -62.679444
Distance 4.225
SpectralType "M5.5V"
AppMag 11.09
}
Barycenter "Rigel Kentaurus:Toliman:ALF Cen:Gliese 559"
{
RA 219.917516 # mass ratio 1.09:0.92
Dec -60.837128 #
Distance 4.365
}
71683 # ALF Cen A
{
OrbitBarycenter "ALF Cen"
SpectralType "G2V"
AppMag 0.01
EllipticalOrbit {
Period 79.914
SemiMajorAxis 10.765 # mass ratio 1.09:0.92
Eccentricity 0.5179
Inclination 82.986
AscendingNode 67.726
ArgOfPericenter 3.772
MeanAnomaly 200.119
}
}
71681 # ALF cen B
{
OrbitBarycenter "ALF Cen"
SpectralType "K0V"
AppMag 1.34
EllipticalOrbit {
Period 79.914
SemiMajorAxis 12.755 # mass ratio 1.09:0.92
Eccentricity 0.5179
Inclination 82.986
AscendingNode 67.726
ArgOfPericenter 183.772
MeanAnomaly 200.119
}
}
87937 # Barnard's Star
{
RA 269.452083
Dec 4.693333
Distance 5.963
SpectralType "M4.0V"
AppMag 9.53
}
"Daniel Danny Fenton:Danny Phantom:Daniel Fenton:Daniel:Danny:Danny Fenton:Danny Pulsar"
{
RA 167.7430367
Dec 7.77775654
Distance 7.72
SpectralType "Q"
AppMag 7
Radius 12
Texture "bstar.*"
InfoURL "https://dannyphantom.wikia.com/wiki/Danny_Phantom_(character)"
}
"Wolf 359:CN Leo:Gliese 406"
{
RA 164.121783
Dec 7.014722
Distance 7.782
SpectralType "M6.0V"
AppMag 13.44
}
54035 # Lalande 21185
{
RA 165.834167
Dec 35.970000
Distance 8.290
SpectralType "M2.0V"
AppMag 7.47
}
Barycenter "Sirius:Alhabor:ALF CMa:9 CMa:Gliese 244"
{
RA 101.287083
Dec -16.716111
Distance 8.583
}
32349 "Sirius A:Alhabor A:ALF CMa A:9 CMa A:Gliese 244 A"
{
OrbitBarycenter "Sirius"
SpectralType "A1V"
AppMag -1.43
EllipticalOrbit { # fully specified orientation
Period 50.09
SemiMajorAxis 6.73 # mass ratio 1.99:1.03
Eccentricity 0.5923
Inclination 97.51
AscendingNode 161.33
ArgOfPericenter 4.56
MeanAnomaly 40.89
}
}
"Sirius B:Alhabor B:ALF CMa B:9 CMa B:Gliese 244 B"
{
OrbitBarycenter "Sirius"
SpectralType "DA2"
AppMag 8.44
EllipticalOrbit { # fully specified orientation
Period 50.09
SemiMajorAxis 13.00 # mass ratio 1.99:1.03
Eccentricity 0.592
Inclination 97.51
AscendingNode 161.33
ArgOfPericenter 184.56
MeanAnomaly 40.89
}
}
"Sirius C:alf CMa C"
{
OrbitBarycenter "Sirius"
SpectralType "M1V"
AbsMag 13.8998 # guess
Radius 112392
EllipticalOrbit {
SemiMajorAxis 38.85
Period 27.344
Eccentricity 0.346
Inclination 77
AscendingNode 325 # inclination to plane of sky 84 deg
ArgOfPericenter 180
}
Obliquity 76 # to match orbit
EquatorAscendingNode 325 # to match orbit
}
Barycenter "Cosmo and Wanda:The Fairly Odd Parents:Luyten 726-8:Gliese 65"
{
RA 24.755529
Dec -17.950278
Distance 8.728
}
"Wanda:Luyten 726-8 A:Gliese 65 A:BL Cet"
{
OrbitBarycenter "Luyten 726-8"
SpectralType "M5.5V"
AppMag 12.54
EllipticalOrbit {
Period 26.52
SemiMajorAxis 2.61 # mass ratio 0.1:0.1
Eccentricity 0.62
Inclination 101.3
AscendingNode 159.5
ArgOfPericenter 39.7
MeanAnomaly 21.3
}
}
"Cosmo:Luyten 726-8 B:Gliese 65 B:UV Cet"
{
OrbitBarycenter "Luyten 726-8"
SpectralType "M6.0V"
AppMag 12.99
EllipticalOrbit {
Period 26.52
SemiMajorAxis 2.61 # mass ratio 0.1:0.1
Eccentricity 0.62
Inclination 101.3
AscendingNode 159.5
ArgOfPericenter 219.7
MeanAnomaly 21.3
}
}
92403 # Ross 154
{
RA 282.455833
Dec -23.836111
Distance 9.681
SpectralType "M3.5V"
AppMag 10.43
}
"Ross 248:HH And:Gliese 905"
{
RA 355.479875
Dec 44.177222
Distance 10.322
SpectralType "M5.5V"
AppMag 12.29
}
16537 # Eps Eri
{
RA 53.232500
Dec -9.458333
Distance 10.522
SpectralType "K2V"
AppMag 3.73
}
114046 # Lacaille 9352
{
RA 346.466667
Dec -35.853056
Distance 10.742
SpectralType "M1.5V"
AppMag 7.34
}
57548 # Ross 128
{
RA 176.935000
Dec 0.804444
Distance 10.919
SpectralType "M4.0V"
AppMag 11.13
}
# Delfosse, X. et al. (1999) "New Neighbours I: 13 new
# companions to nearby M dwarfs" A&A, 344, 897
# (http://aa.springer.de/papers/9344003/2300897/small.htm)
Barycenter "Luyten 789-6:Gliese 866"
{
RA 339.640833
Dec -15.300806
Distance 11.266
}
Barycenter "Luyten 789-6 A:Gliese 866 A"
{
OrbitBarycenter "Luyten 789-6"
EllipticalOrbit {
Period 2.2506
SemiMajorAxis 0.42 # mass ratio 0.106:(0.105+0.095)
Eccentricity 0.437
Inclination 96.2
AscendingNode 133.5
ArgOfPericenter 76.4
MeanAnomaly 241.7
}
}
"Luyten 789-6 Aa:Gliese 866 Aa:EZ Aqr"
{
OrbitBarycenter "Luyten 789-6 A"
SpectralType "M5.0V"
AppMag 13.33
EllipticalOrbit {
Period 0.010 # 3.8dys
SemiMajorAxis 0.013 # to match period and mass ratio 0.105:0.095
Inclination 96 # guess - to match plane of B
AscendingNode 133 # guess - to match plane of B
}
}
"Luyten 789-6 Ab:Gliese 866 Ab"
{
OrbitBarycenter "Luyten 789-6 A"
SpectralType "M6V" # from apparent magnitude
AppMag 14.03
EllipticalOrbit {
Period 0.010 # 3.8dys
SemiMajorAxis 0.014 # to match period and mass ratio 0.105:0.095
Inclination 96 # guess - to match plane of B
AscendingNode 133 # guess - to match plane of B
ArgOfPericenter 180
}
}
"Luyten 789-6 B:Gliese 866 B"
{
OrbitBarycenter "Luyten 789-6"
SpectralType "M5V" # from apparent magnitude
AppMag 13.27
EllipticalOrbit {
Period 2.2506
SemiMajorAxis 0.78 # mass ratio 0.106:(0.105+0.095)
Eccentricity 0.437
Inclination 96.2
AscendingNode 133.5
ArgOfPericenter 256.4
MeanAnomaly 241.7
}
}
Barycenter "Procyon:Elgomaisa:ALF CMi:10 CMi:Gliese 280"
{
RA 114.82724
Dec 5.2275076
Distance 11.402
}
37279 "Procyon A:Elgomaisa A:ALF CMi A:10 CMi A:Gliese 280 A"
{
OrbitBarycenter "Procyon"
SpectralType "F5IV"
AppMag 0.38
EllipticalOrbit {
Period 40.82
SemiMajorAxis 4.13 # mass ratio 1.57:0.6
Eccentricity 0.407
Inclination 42.9
AscendingNode 27.8
ArgOfPericenter 88.4
MeanAnomaly 282.5
}
}
"Procyon B:Elgomaisa B:ALF CMi B:10 CMi B:Gliese 280 B"
{
OrbitBarycenter "Procyon"
SpectralType "DA"
AppMag 10.70
EllipticalOrbit {
Period 40.82
SemiMajorAxis 10.80 # mass ratio 1.57:0.6
Eccentricity 0.407
Inclination 42.9
AscendingNode 27.8
ArgOfPericenter 268.4
MeanAnomaly 282.5
}
}
Barycenter "61 Cyg:Gliese 820"
{
RA 316.714507 # mass ratio 0.7:0.63
Dec 38.738139 #
Distance 11.403
}
104214 # 61 Cyg A
{
OrbitBarycenter "61 Cyg"
SpectralType "K5V"
AppMag 5.21
EllipticalOrbit {
Period 659
SemiMajorAxis 40.40 # mass ratio 0.7:0.63
Eccentricity 0.48
Inclination 132
AscendingNode 165
ArgOfPericenter 195
MeanAnomaly 165
}
}
104217 # 61 Cyg B
{
OrbitBarycenter "61 Cyg"
SpectralType "K7V"
AppMag 6.03
EllipticalOrbit {
Period 659
SemiMajorAxis 44.90 # mass ratio 0.7:0.63
Eccentricity 0.48
Inclination 132
AscendingNode 165
ArgOfPericenter 15
MeanAnomaly 165
}
}
Barycenter "Struve 2398:Gliese 725"
{
RA 280.701371 # mass ratio 0.35:0.26
Dec 59.624455 #
Distance 11.525
}
91768 # Struve 2398 A
{
OrbitBarycenter "Struve 2398"
SpectralType "M3.0V"
AppMag 8.90
EllipticalOrbit {
Period 408
SemiMajorAxis 20.91 # mass ratio 0.35:0.26
Eccentricity 0.53
Inclination 112
AscendingNode 146.1
ArgOfPericenter 243.5
MeanAnomaly 198.5
}
}
91772 # Struve 2398 B
{
OrbitBarycenter "Struve 2398"
SpectralType "M3.5V"
AppMag 9.69
EllipticalOrbit {
Period 408
SemiMajorAxis 28.14 # mass ratio 0.35:0.26
Eccentricity 0.53
Inclination 112
AscendingNode 146.1
ArgOfPericenter 63.5
MeanAnomaly 198.5
}
}
Barycenter "Groombridge 34:Gliese 15"
{
RA 4.595417
Dec 44.023056
Distance 11.624
}
1475 "Groombridge 34 A:Gliese 15 A:GX And"
{
OrbitBarycenter "Groombridge 34"
SpectralType "M1.5V"
AppMag 8.08
EllipticalOrbit {
Period 2600
SemiMajorAxis 36.1 # mass ratio 0.49:0.16
Eccentricity 0
Inclination 67.9
AscendingNode 308.4
MeanLongitude 23.0
}
}
"Groombridge 34 B:Gliese 15 B:GQ And"
{
OrbitBarycenter "Groombridge 34"
SpectralType "M3.5V"
AppMag 11.06
EllipticalOrbit {
Period 2600
SemiMajorAxis 110.7 # mass ratio 0.49:0.16
Eccentricity 0
Inclination 67.9
AscendingNode 308.4
MeanLongitude 203.0
}
}
Barycenter "EPS Ind:Gliese 845" # orbit of A & B components unknown
{
RA 330.841091 # mass ratio 0.77:(0.04+0.03)
Dec -56.780045
Distance 11.824
}
108870 "EPS Ind A:Gliese 845 A"
{
RA 330.82266
Dec -56.779804
Distance 11.824
SpectralType "K5V"
AppMag 4.69
}
# McCaughrean, M.J. et al.(2004) "Eps Indi Ba,Bb: The nearest binary
# brown dwarf" A&A 413, 1029.
# (http://arxiv.org/PS_cache/astro-ph/pdf/0309/0309256.pdf)
Barycenter "EPS Ind B:Gliese 845 B"
{
RA 331.043833
Dec -56.782694
Distance 11.824
}
"EPS Ind Ba:Gliese 845 Ba"
{
OrbitBarycenter "EPS Ind B"
SpectralType "T1V"
AbsMag 25.8 # for approximate radius in Celestia
EllipticalOrbit {
Period 15.5 # approximate orbit
SemiMajorAxis 0.99 # mass ratio 47:28J
}
}
"EPS Ind Bb:Gliese 845 Bb"
{
OrbitBarycenter "EPS Ind B"
SpectralType "T6V"
AbsMag 33.5 # for approximate radius in Celestia
EllipticalOrbit {
Period 15.5 # approximate orbit
SemiMajorAxis 1.66 # mass ratio 47:28J
ArgOfPericenter 180
}
}
"DX Cnc:Giclas 51-15:GJ 1111"
{
RA 127.456125
Dec 26.775611
Distance 11.826
SpectralType "M6.5V"
AppMag 14.78
}
8102 # Tau Cet
{
RA 26.017083
Dec -15.937500
Distance 11.887
SpectralType "G8V"
AppMag 3.49
}
"Luyten 372-58:RECONS 1:GJ 1061"
{
RA 54.000000
Dec -44.512778
Distance 12.049
SpectralType "M5.5V"
AppMag 13.03
}
5643 # Luyten 725-032
{
RA 18.127500
Dec -16.999167
Distance 12.132
SpectralType "M4.5V"
AppMag 12.02
}
36208 # Luyten's Star
{
RA 111.852083
Dec 5.225833
Distance 12.366
SpectralType "M3.5V"
AppMag 9.86
}
"Teegarden's Star:SO0253+1652:SO025300.5+165258"
{
RA 43.253500
Dec 16.881389
Distance 12.541
SpectralType "M7.0V"
AppMag 15.40
}
# Biller B.A. et al.(2006) "Discovery of the Closest Brown Dwarf to
# the Sun? A Methane Rich Brown Dwarf Around the Nearby M8.5 Star
# SCR 1845"
# (http://xxx.uni-augsburg.de/PS_cache/astro-ph/pdf/0601/0601441.pdf)
Barycenter "SCR 1845-6357"
{
RA 281.260833
Dec -63.964444
Distance 12.571
}
"SCR 1845-6357 A"
{
OrbitBarycenter "SCR 1845-6357"
SpectralType "M8.5V"
AppMag 17.39
EllipticalOrbit {
Period 23.5 # estimate
SemiMajorAxis 1.6 # estimated mass ratio 0.07:0.045
ArgOfPericenter 180
}
}
"SCR 1845-6357 B"
{
OrbitBarycenter "SCR 1845-6357"
SpectralType "T6V"
AbsMag 33.5 # for approximate radius in Celestia
EllipticalOrbit {
Period 23.5 # estimate
SemiMajorAxis 2.4 # estimated mass ratio 0.07:0.045
}
}
24186 # Kapteyn's Star
{
RA 77.919167
Dec -45.018333
Distance 12.777
SpectralType "M1.5VI"
AppMag 8.84
}
105090 # Lacaille 8760
{
RA 319.313750
Dec -38.867500
Distance 12.870
SpectralType "M0.0V"
AppMag 6.67
}
Barycenter "Kruger 60:Gliese 860"
{
RA 336.997917
Dec 57.695833
Distance 13.149
}
110893 "Kruger 60 A:Gliese 860 A"
{
OrbitBarycenter "Kruger 60"
SpectralType "M3.0V"
AppMag 9.79
EllipticalOrbit {
Period 44.67
SemiMajorAxis 3.49 # mass ratio 0.28:0.16
Eccentricity 0.41
Inclination 37.0
AscendingNode 126.6
ArgOfPericenter 264.1
MeanAnomaly 240.0
}
}
"Kruger 60 B:DO Cep:Gliese 860 B"
{
OrbitBarycenter "Kruger 60"
SpectralType "M4.0V"
AppMag 11.41
EllipticalOrbit {
Period 44.67
SemiMajorAxis 6.12 # mass ratio 0.28:0.16
Eccentricity 0.41
Inclination 37.0
AscendingNode 126.6
ArgOfPericenter 84.1
MeanAnomaly 240.0
}
}
"DENIS 1048-3956:RECONS 2"
{
Texture "browndwarf.*"
RA 162.061250
Dec -39.935000
Distance 13.167
SpectralType "M8.5V"
AppMag 17.29
}
Barycenter "Ross 614:Gliese 234"
{
RA 97.347500
Dec -2.813889
Distance 13.349
}
30920 "Ross 614 A:V577 Mon:Gliese 234 A"
{
OrbitBarycenter "Ross 614"
SpectralType "M4.5V"
AppMag 11.15
EllipticalOrbit {
Period 16.5
SemiMajorAxis 1.67 # mass ratio 0.17:0.10
Eccentricity 0.38
Inclination 37
AscendingNode 71
ArgOfPericenter 131
MeanAnomaly 0
}
}
"Ross 614 B:Gliese 234 B"
{
OrbitBarycenter "Ross 614"
SpectralType "M7V"
AppMag 14.23
EllipticalOrbit {
Period 16.5
SemiMajorAxis 2.83 # mass ratio 0.17:0.10
Eccentricity 0.38
Inclination 37
AscendingNode 71
ArgOfPericenter 311
MeanAnomaly 0
}
}
80824 # Wolf 1061
{
RA 247.575417
Dec -12.662500
Distance 13.820
SpectralType "M3.0V"
AppMag 10.07
}
3829 # van Maanen's Star
{
RA 12.291250
Dec 5.388611
Distance 14.066
SpectralType "DZ7"
AppMag 12.38
}
439 # Cordoba 32416
{
RA 1.351667
Dec -37.357500
Distance 14.231
SpectralType "M3.0V"
AppMag 8.55
}
Barycenter "Wolf 424:Gliese 473"
{
RA 188.321667
Dec 9.020833
Distance 14.312
}
"Wolf 424 A:Gliese 473 A"
{
OrbitBarycenter "Wolf 424"
SpectralType "M5.5V"
AppMag 13.18
EllipticalOrbit {
Period 15.9
SemiMajorAxis 1.92 # mass ratio 0.14:0.13
Eccentricity 0.3
Inclination 28.7
AscendingNode 359.5
ArgOfPericenter 81.1
MeanAnomaly 169.8
}
}
"Wolf 424 B:FL Vir:Gliese 473 B"
{
OrbitBarycenter "Wolf 424"
SpectralType "M5.5V"
AppMag 13.17
EllipticalOrbit {
Period 15.9
SemiMajorAxis 2.06 # mass ratio 0.14:0.13
Eccentricity 0.3
Inclination 28.7
AscendingNode 359.5
ArgOfPericenter 261.1
MeanAnomaly 169.8
}
}
"Luyten 1159-16:TZ Ari:Gliese 83.1"
{
RA 30.055000
Dec 13.052222
Distance 14.509
SpectralType "M4.5V"
AppMag 12.27
}
86162 # Gliese 687
{
RA 264.107917
Dec 68.339167
Distance 14.793
SpectralType "M3.0V"
AppMag 9.17
}
"LP 731-58:GJ 3622"
{
RA 162.052500
Dec -11.337222
Distance 14.805
SpectralType "M6.5V"
AppMag 15.60
}
85523 # Gliese 674
{
RA 262.166250
Dec -46.895278
Distance 14.809
SpectralType "M3.0V"
AppMag 9.38
}
Barycenter "GJ 1245" # orbit of A & B components unknown
{
RA 298.477317 # mass ratio (0.11+0.07):0.10
Dec 44.415377 #
Distance 14.812
}
Barycenter "GJ 1245 A"
{
RA 298.475833
Dec 44.415278
Distance 14.812
}
"GJ 1245 Aa:V1581 Cyg"
{
OrbitBarycenter "GJ 1245 A"
SpectralType "M5.5V"
AppMag 13.46
EllipticalOrbit {
Period 15.22
SemiMajorAxis 0.49 # mass ratio 0.11:0.07
Eccentricity 0.32
Inclination 20
AscendingNode 197
ArgOfPericenter 58
MeanAnomaly 40
}
}
"GJ 1245 Ab"
{
OrbitBarycenter "GJ 1245 A"
SpectralType "M7.5V" # from low luminosity
AppMag 16.75
EllipticalOrbit {
Period 15.22
SemiMajorAxis 0.78 # mass ratio 0.11:0.07
Eccentricity 0.32
Inclination 20
AscendingNode 197
ArgOfPericenter 238
MeanAnomaly 40
}
}
"GJ 1245 B"
{
RA 298.480000
Dec 44.415556
Distance 14.812
SpectralType "M6.0V"
AppMag 14.01
}
57367 # Luyten 145-141
{
RA 176.428750
Dec -64.841389
Distance 15.060
SpectralType "DQ6"
AppMag 11.50
}
"GJ 1002"
{
RA 1.682500
Dec -7.539444
Distance 15.313
SpectralType "M5.5V"
AppMag 13.76
}
113020 # Ross 780
{
RA 343.319583
Dec -14.263611
Distance 15.342
SpectralType "M3.5V"
AppMag 10.17
}
"Luyten 143-23:GJ 3618"
{
RA 161.132500
Dec -61.193889
Distance 15.610
SpectralType "M5.5V"
AppMag 13.92
}
Barycenter "Lalande 21258:Gliese 412" # orbits of A & B unknown
{
RA 166.370443 # mass ratio 0.48:0.10
Dec 43.525816 #
Distance 15.832
}
54211 "Lalande 21258 A:Gliese 412 A"
{
RA 166.369167
Dec 43.526667
Distance 15.832
SpectralType "M1.0V"
AppMag 8.77
}
"Lalande 21258 B:WX UMa:Gliese 412 B"
{
RA 166.376667
Dec 43.521667
Distance 15.832
SpectralType "M5.5V"
AppMag 14.48
}
49908 # Groombridge 1618
{
RA 152.842083
Dec 49.454167
Distance 15.848
SpectralType "K7.0V"
AppMag 6.59
}
"AD Leo:Gliese 388"
{
RA 154.901667
Dec 19.869444
Distance 15.942
SpectralType "M3.0V"
AppMag 9.32
}
106440 # Luyten 354-89
{
RA 323.391667
Dec -49.008889
Distance 16.085
SpectralType "M3.0V"
AppMag 8.66
}
"LP 944-20"
{
Texture "browndwarf.*"
RA 54.896667
Dec -35.428056
Distance 16.195
SpectralType "M9.0V"
AppMag 18.50
}
"DENIS 0255-4700"
{
RA 43.765417
Dec -47.014444
Distance 16.197
SpectralType "L7.5V"
AppMag 22.92
}
86214 # Gliese 682
{
RA 264.265417
Dec -44.319167
Distance 16.337
SpectralType "M4.5V"
AppMag 10.95
}
Barycenter "Keid:OMI2 Eri:40 Eri:Gliese 166" # Orbits of A & (BC) unknown
{
RA 63.828351 # mass ratio 0.89:(0.5+0.20)
Dec -7.655829 #
Distance 16.390
}
19849 "Keid A:OMI2 Eri A:40 Eri A:Gliese 166 A"
{
RA 63.817917
Dec -7.652778
Distance 16.390
SpectralType "K1V"
AppMag 4.43
}
Barycenter "Keid B-C:OMI2 Eri B-C:40 Eri B-C:Gliese 166 B-C"
{
RA 63.841667
Dec -7.659722
Distance 16.390
}
"Keid B:OMI2 Eri B:40 Eri B:Gliese 166 B"
{
OrbitBarycenter "Keid B-C"
SpectralType "DA4"
AppMag 9.52
EllipticalOrbit {
Period 252.1
SemiMajorAxis 9.97 # mass ratio 0.5:0.2
Eccentricity 0.41
Inclination 84.4
AscendingNode 215.2
ArgOfPericenter 90.4
MeanAnomaly 214.77
}
}
"Keid C:OMI2 Eri C:40 Eri C:DY Eri:Gliese 166 C"
{
OrbitBarycenter "Keid B-C"
SpectralType "M4.5V"
AppMag 11.19
EllipticalOrbit {
Period 252.1
SemiMajorAxis 24.92 # mass ratio 0.5:0.2
Eccentricity 0.41
Inclination 84.4
AscendingNode 215.2
ArgOfPericenter 270.4
MeanAnomaly 214.77
}
}
112460 # EV Lac
{
RA 341.702083
Dec 44.330833
Distance 16.470
SpectralType "M3.5V"
AppMag 10.06
}
Barycenter "70 Oph:Struve 2272:Gliese 702"
{
RA 271.363750
Dec 2.500000
Distance 16.644
}
88601 "70 Oph A:Struve 2272 A:Gliese 702 A"
{
OrbitBarycenter "70 Oph"
SpectralType "K0V"
AppMag 4.20
EllipticalOrbit {
Period 88.38
SemiMajorAxis 10.04 # mass ratio 0.92:0.70
Eccentricity 0.4992
Inclination 114.9
AscendingNode 330.8
ArgOfPericenter 341.6
MeanAnomaly 63.9
}
}
"70 Oph B:Struve 2272 B:Gliese 702 B"
{
OrbitBarycenter "70 Oph"
SpectralType "K5V"
AppMag 6.05
EllipticalOrbit {
Period 88.38
SemiMajorAxis 13.20 # mass ratio 0.92:0.70
Eccentricity 0.4992
Inclination 114.9
AscendingNode 330.8
ArgOfPericenter 161.6
MeanAnomaly 63.9
}
}
97649 # Altair
{
RA 297.695833
Dec 8.868333
Distance 16.729
SpectralType "A7IV"
AppMag 0.77
RotationPeriod 10.4
SemiAxes [ 1 0.96 1 ] # equatorial radius 14% greater than polar # edited 0.88 to 0.96 to be almost circular
}
Barycenter "GJ 1116" # orbit of A & B unknown
{
RA 134.562083 # mass ratio 0.11:0.10
Dec 19.762724 #
Distance 17.059
}
"GJ 1116 A:EI Cnc"
{
RA 134.562083
Dec 19.761944
Distance 17.059
SpectralType "M5.5V"
AppMag 14.06
}
"GJ 1116 B:LP 426-40"
{
RA 134.562083
Dec 19.763611
Distance 17.059
SpectralType "M5.5V"
AppMag 14.92
}
"Giclas 99-49:GJ 3379"
{
RA 90.015000
Dec 2.705556
Distance 17.083
SpectralType "M3.5V"
AppMag 11.31
}
"LP 656-38:RECONS 3:GJ 3323"
{
RA 75.487500
Dec -6.946389
Distance 17.357
SpectralType "M3.5V"
AppMag 12.22
}
57544 # Gliese 445
{
RA 176.922500
Dec 78.691111
Distance 17.551
SpectralType "M3.5V"
AppMag 10.79
}
67155 # Lalande 25372
{
RA 206.432500
Dec 14.891389
Distance 17.706
SpectralType "M1.5V"
AppMag 8.46
}
103039 # LP 816-60
{
RA 313.137500
Dec -16.974722
Distance 17.906
SpectralType "M"
AppMag 11.41
}
Barycenter "Stein 2051:Gliese 169.1" # orbit of A & B unknown
{
RA 67.796397 # mass ratio 0.224:0.50
Dec 58.977167 #
Distance 18.057
}
21088 "Stein 2051 A:Gliese 169.1 A"
{
RA 67.799375
Dec 58.977167
Distance 18.057
SpectralType "M4V"
AppMag 11.04
}
"Stein 2051 B:Gliese 169.1 B"
{
RA 67.795063
Dec 58.977167
Distance 18.057
SpectralType "DC5"
AppMag 12.44
}
33226 # Wolf 294
{
RA 103.704167
Dec 33.268056
Distance 18.163
SpectralType "M3.0V"
AppMag 10.02
}
"2MASS 1835+3259"
{
RA 278.907917
Dec 32.998333
Distance 18.480
SpectralType "M8.5V"
AppMag 18.27
}
25878 # Wolf 1453
{
RA 82.864167
Dec -3.677222
Distance 18.620
SpectralType "M1.5V"
AppMag 7.95
}
"2MASS 0415-0935"
{
RA 63.83125
Dec -9.585
Distance 18.709
SpectralType "T8.5V"
AbsMag 38 # estimate
}
96100 # Sig Dra
{
RA 293.090000
Dec 69.661111
Distance 18.789
SpectralType "K0V"
AppMag 4.68
}
Barycenter "Luyten 668-21:LPM 230:Gliese 229" # orbit of A & B unknown
{
RA 92.644342 # mass ratio 0.556:0.05
Dec -21.863920 #
Distance 18.835
}
29295 "Luyten 668-21 A:LPM 230 A:Gliese 229 A"
{
RA 92.644167
Dec -21.864722
Distance 18.835
SpectralType "M1.0V"
AppMag 8.12
}
"Luyten 668-21 B:LPM 230 B:Gliese 229 B"
{
RA 92.646292
Dec -21.855000
Distance 18.835
SpectralType "T6.5V"
AbsMag 33 # very approx
}
86990 # Luyten 205-128
{
RA 266.642500
Dec -57.319167
Distance 18.997
SpectralType "M4.0V"
AppMag 10.75
}
Barycenter "Ross 652:Wolf 1055:Gliese 752" # orbit of A & B unknown
{
RA 289.232026 # mass ratio 0.494:0.073
Dec 5.166493 #
Distance 19.073
}
94761 "Ross 652 A:Wolf 1055 A:V1428 Aql:Gliese 752 A"
{
RA 289.230417
Dec 5.1688889
Distance 19.073
SpectralType "M3.5V"
AppMag 9.11
}
"Ross 652 B:Wolf 1055 B:Van Biesbroek's Star:VB 10:V1298 Aql:Gliese 752 B"
{
RA 289.242917
Dec 5.150278
Distance 19.073
SpectralType "M8.0V"
AppMag 17.50
}
26857 # Ross 47
{
RA 85.538750
Dec 12.489444
Distance 19.144
SpectralType "M4.0V"
AppMag 11.51
}
Barycenter "33 Lib:Gliese 570"
{
RA 224.363278 # mass ratio 0.76:(0.55+0.35)
Dec -21.413296 #
Distance 19.203
}
73184 "33 Lib A:Gliese 570 A" # fully specified orientation
{
OrbitBarycenter "33 Lib"
SpectralType "K5V"
AppMag 5.75
EllipticalOrbit {
Period 2130
SemiMajorAxis 103.23 # mass ratio 0.76:(0.55+0.35)
Eccentricity 0.2
Inclination 142.62
AscendingNode 191.56
ArgOfPericenter 129.2
MeanAnomaly 52.6
}
}
Barycenter "33 Lib B-C:Gliese 570 B-C" # fully specified orientation
{
OrbitBarycenter "33 Lib"
EllipticalOrbit {
Period 2130
SemiMajorAxis 87.17 # mass ratio 0.76:(0.55+0.35)
Eccentricity 0.2
Inclination 142.62
AscendingNode 191.56
ArgOfPericenter 309.2
MeanAnomaly 52.6
}
}
73182 "33 Lib B:Gliese 570 B"
{
OrbitBarycenter "33 Lib B-C"
SpectralType "M1V"
AppMag 8.28
EllipticalOrbit {
Period 0.84570
SemiMajorAxis 0.35 # mass ratio 0.55:0.35
Eccentricity 0.7559
Inclination 90.7
AscendingNode 30.5
ArgOfPericenter 221.92
MeanAnomaly 45.19
}
}
"33 Lib C:Gliese 570 C"
{
OrbitBarycenter "33 Lib B-C"
SpectralType "M3V"
AppMag 10.05
EllipticalOrbit {
Period 0.84570
SemiMajorAxis 0.54 # mass ratio 0.55:0.35
Eccentricity 0.7559
Inclination 90.7
AscendingNode 30.5
ArgOfPericenter 41.92
MeanAnomaly 45.19
}
}
"33 Lib D:Gliese 570 D"
{
RA 224.312500
Dec -21.363889
Distance 19.203
SpectralType "T8V"
AbsMag 38 # very approx
}
"Luyten 347-14:Gliese 754"
{
RA 290.200833
Dec -45.558889
Distance 19.296
SpectralType "M4.5V"
AppMag 12.23
}
117473 # Gliese 908
{
RA 357.302083
Dec 2.401111
Distance 19.356
SpectralType "M1.0V"
AppMag 8.99
}
Barycenter "Achird:ETA Cas:24 Cas:Gliese 34"
{
RA 12.27625
Dec 57.815278
Distance 19.371
}
3821 "Achird A:ETA Cas A:24 Cas A:Gliese 34 A"
{
OrbitBarycenter "Achird"
SpectralType "G3V"
AppMag 3.45
EllipticalOrbit {
Period 480
SemiMajorAxis 24.99 # mass ratio 1.11:0.60
Eccentricity 0.497
Inclination 152.19
AscendingNode 6.96
ArgOfPericenter 179.63
MeanAnomaly 82.80
}
}
"Achird B:ETA Cas B:24 Cas B:Gliese 34 B"
{
OrbitBarycenter "Achird"
SpectralType "K7.0V"
AppMag 7.51
EllipticalOrbit {
Period 480
SemiMajorAxis 46.24 # mass ratio 1.11:0.60
Eccentricity 0.497
Inclination 152.19
AscendingNode 6.96
ArgOfPericenter 359.63
MeanAnomaly 82.80
}
}
76074 # Gliese 588
{
RA 233.053750
Dec -41.275556
Distance 19.373
SpectralType "M3.0V"
AppMag 9.31
}
Barycenter "Luyten 722-22:GJ 1005"
{
RA 3.867083
Dec -16.133889
Distance 19.408
}
1242 "Luyten 722-22 A:GJ 1005 A"
{
OrbitBarycenter "Luyten 722-22"
SpectralType "M4.0V"
AppMag 11.58
EllipticalOrbit {
Period 4.566
SemiMajorAxis 0.62 # mass ratio 0.18:0.11
Eccentricity 0.364
Inclination 72.3
AscendingNode 85.2
ArgOfPericenter 169.4
MeanAnomaly 5.4
}
}
"Luyten 722-22 B:GJ 1005 B"
{
OrbitBarycenter "Luyten 722-22"
SpectralType "M7V"
AppMag 14.33
EllipticalOrbit {
Period 4.566
SemiMajorAxis 1.01 # mass ratio 0.18:0.11
Eccentricity 0.364
Inclination 72.3
AscendingNode 85.2
ArgOfPericenter 349.4
MeanAnomaly 5.4
}
}
37766 # Ross 882
{
RA 116.167500
Dec 3.552500
Distance 19.468
SpectralType "M4.0V"
AppMag 11.19
}
Barycenter "36 Oph:Gliese 663" # orbit of (AB) & C unknown
{
RA 258.901180 # mass ratio (0.85+0.85):0.7
Dec -26.586250 #
Distance 19.471
}
Barycenter "36 Oph A-B:Gliese 663 A-B"
{
RA 258.837500
Dec -26.602778
Distance 19.471
}
84405 "36 Oph A:Gliese 663 A"
{
OrbitBarycenter "36 Oph A-B"
SpectralType "K1V"
AppMag 5.07
EllipticalOrbit {
Period 470.9
SemiMajorAxis 38.8 # mass ratio 0.85:0.85
Eccentricity 0.916
Inclination 13.35
AscendingNode 348.86
ArgOfPericenter 271.0
MeanAnomaly 246.3
}
}
"36 Oph B:Gliese 663 B"
{
OrbitBarycenter "36 Oph A-B"
SpectralType "K1V"
AppMag 5.08
EllipticalOrbit {
Period 470.9
SemiMajorAxis 38.8 # mass ratio 0.85:0.85
Eccentricity 0.916
Inclination 13.35
AscendingNode 348.86
ArgOfPericenter 91.0
MeanAnomaly 246.3
}
}
84478 # 36 Oph C
{
RA 259.055833
Dec -26.546111
Distance 19.471
SpectralType "K5V"
AppMag 6.33
}
Barycenter "Gliese 783:CD-36 13940:J Herschel 5173:HJ 5173" # orbit of A & B unknown
{
RA 302.798770 # mass ratio 0.82:0.20
Dec -36.097603 #
Distance 19.728
}
99461 "Gliese 783 A:CD-36 13940 A:J Herschel 5173 A:HJ 5173 A"
{
RA 302.79837
Dec -36.097385
Distance 19.728
SpectralType "K3V"
AppMag 5.32
}
"Gliese 783 B:CD-36 13940 B:J Herschel 5173 B:HJ 5173 B"
{
RA 302.8004
Dec -36.09849
Distance 19.728
SpectralType "M4.0V"
AppMag 11.50
}
15510 # 82 Eri
{
RA 49.981667
Dec -43.069722
Distance 19.766
SpectralType "G5V"
AppMag 4.26
}
"LP 44-113:GJ 1221"
{
RA 267.027917
Dec 70.874722
Distance 19.804
SpectralType "DXP9"
AppMag 14.12
}
99240 # Del Pav
{
RA 302.181667
Dec -66.181944
Distance 19.915
SpectralType "G8IV"
AppMag 3.56
}
# Delfosse, X. et al. (1999) "New Neighbours I: 13 new
# companions to nearby M dwarfs" A&A, 344, 897
# (http://aa.springer.de/papers/9344003/2300897/small.htm)
Barycenter "Ross 986:Gliese 268"
{
RA 107.5075
Dec 38.529444
Distance 20.019
}
34603 "Ross 986 A:QY Aur:Gliese 268 A"
{
OrbitBarycenter "Ross 986"
SpectralType "M5V"
AppMag 12.05
EllipticalOrbit {
Period 0.02856 # 10.43dy
SemiMajorAxis 0.03 # mass ratio 0.17:0.16
ArgOfPericenter 180
}
}
"Ross 986 B:Gliese 268 B"
{
OrbitBarycenter "Ross 986"
SpectralType "M6V"
AppMag 12.45
EllipticalOrbit {
Period 0.02856 # 10.43dy
SemiMajorAxis 0.03 # mass ratio 0.17:0.16
}
}
71253 # Gliese 555
{
RA 218.570000
Dec -12.519444
Distance 20.027
SpectralType "M3.5V"
AppMag 11.31
}
"2MASS 0937+2931"
{
RA 144.391667
Dec 29.516667
Distance 20.030
SpectralType "T6.0V"
AbsMag 33 # estimate
}
Barycenter "Struve 1321:Gliese 338"
{
RA 138.598959
Dec 52.775278
Distance 20.117
}
45343 "Struve 1321 A:Gliese 338 A"
{
OrbitBarycenter "Struve 1321"
SpectralType "K7V"
AppMag 7.62
EllipticalOrbit {
Period 975
SemiMajorAxis 51.58 # mass ratio 06:0.6
Eccentricity 0.28
Inclination 113
AscendingNode 13
ArgOfPericenter 276
MeanAnomaly 264
}
}
120005 "Struve 1321 B:Gliese 338 B"
{
OrbitBarycenter "Struve 1321"
SpectralType "K7V"
AppMag 7.71
EllipticalOrbit {
Period 975
SemiMajorAxis 51.58 # mass ratio 06:0.6
Eccentricity 0.28
Inclination 113
AscendingNode 13
ArgOfPericenter 96
MeanAnomaly 264
}
}
99701 # Gliese 784
{
RA 303.472500
Dec -45.163889
Distance 20.236
SpectralType "M0.0V"
AppMag 7.96
}
74995 # Wolf 562
{
RA 229.861667
Dec -7.722222
Distance 20.476
SpectralType "M2.5V"
AppMag 10.56
}
Barycenter "Gliese 896"
{
RA 352.967500
Dec 19.937222
Distance 20.680
}
Barycenter "Gliese 896 A"
{
OrbitBarycenter "Gliese 896"
EllipticalOrbit {
Period 359
SemiMajorAxis 15.12 # mass ratio (0.34+0.13):(0.16+0.09)
Eccentricity 0.2
Inclination 19.6
AscendingNode 138.8
ArgOfPericenter 119.1
MeanAnomaly 352.0
}
}
Barycenter "Gliese 896 B"
{
OrbitBarycenter "Gliese 896"
EllipticalOrbit {
Period 359
SemiMajorAxis 28.44 # mass ratio (0.34+0.13):(0.16+0.09)
Eccentricity 0.2
Inclination 19.6
AscendingNode 138.8
ArgOfPericenter 299.1
MeanAnomaly 352.0
}
}
116132 "Gliese 896 Aa:EQ Peg"
{
OrbitBarycenter "Gliese 896 A"
SpectralType "M3.5V"
AppMag 10.26
EllipticalOrbit {
Period 3.5 # "of the order of a few years"
SemiMajorAxis 0.5 # mass ratio 0.34:0.13
ArgOfPericenter 180
Inclination 20 # to match orbital plane
AscendingNode 140 # of system
}
}
"Gliese 896 Ab"
{
OrbitBarycenter "Gliese 896 A"
SpectralType "M7V" # from apparent magnitude
AppMag 13.26
EllipticalOrbit {
Period 3.5 # "of the order of a few years"
SemiMajorAxis 1.2 # mass ratio 0.34:0.13
Inclination 20 # to match orbital plane
AscendingNode 140 # of system
}
}
"Gliese 896 Ba"
{
OrbitBarycenter "Gliese 896 B"
SpectralType "M4.5V"
AppMag 12.40
EllipticalOrbit {
Period 4.1 # "of the order of a few years"
SemiMajorAxis 0.6 # mass ratio 0.16:0.09
ArgOfPericenter 180
Inclination 20 # to match orbital plane
AscendingNode 140 # of system
}
}
"Gliese 896 Bb"
{
OrbitBarycenter "Gliese 896 B"
SpectralType "M9V" # from apparent magnitude
AppMag 15.40
EllipticalOrbit {
Period 4.1 # "of the order of a few years"
SemiMajorAxis 1.0 # mass ratio 0.16:0.09
Inclination 20 # to match orbital plane
AscendingNode 140 # of system
}
}
"LHS 2090:LP 368-128"
{
RA 135.098333
Dec 21.834722
Distance 20.792
SpectralType "M6.0V"
AppMag 16.1
}
"LHS 337:Luyten 471-42:GJ 3737"
{
RA 189.704583
Dec -38.381667
Distance 20.844
SpectralType "M4.0V"
AppMag 12.74
}
Barycenter "Gliese 661:BD+45 2505"
{
RA 258.032917
Dec 45.665833
Distance 20.865
}
84140 "Gliese 661 A:BD+45 2505 A"
{
OrbitBarycenter "Gliese 661"
SpectralType "M3V"
AppMag 9.93
EllipticalOrbit {
Period 12.9512
SemiMajorAxis 2.23 # mass ratio 0.39:0.33
Eccentricity 0.743
Inclination 25.8
AscendingNode 59.0
ArgOfPericenter 144.9
MeanAnomaly 249.3
}
}
"Gliese 661 B:BD+45 2505 B"
{
OrbitBarycenter "Gliese 661"
SpectralType "M4V"
AppMag 10.35
EllipticalOrbit {
Period 12.9512
SemiMajorAxis 2.64 # mass ratio 0.39:0.33
Eccentricity 0.743
Inclination 25.8
AscendingNode 59.0
ArgOfPericenter 324.9
MeanAnomaly 249.3
}
}
"LP 914-54:GJ 3877"
{
RA 224.160417
Dec -28.164167
Distance 20.868
SpectralType "M7.0V"
AppMag 17.05
}
"Giclas 180-60:GJ 3959"
{
RA 247.826667
Dec 40.865000
Distance 20.908
SpectralType "M"
AppMag 14.79
}
"LP 658-2:Gliese 223.2"
{
RA 88.790417
Dec -4.171389
Distance 21.043
SpectralType "DZ9"
AppMag 14.45
}
# Delfosse, X. et al. (1999) "New Neighbours I: 13 new
# companions to nearby M dwarfs" A&A, 344, 897
# (http://aa.springer.de/papers/9344003/2300897/small.htm)
# Mazeh, T. et al. (2001) "Studies of multiple stellar systems - IV. The
# triple-lined spectroscopic system Gliese 644" MNRAS, 325, 343.
# (http://arxiv.org/PS_cache/astro-ph/pdf/0102/0102451.pdf)
Barycenter "Wolf 630:Gliese 644" # orbit of (AB) & C unknown
{
RA 253.872065 # mass ratio (0.41+0.34+0.30):0.08
Dec -8.340499 #
Distance 21.047
}
Barycenter "Wolf 630 A-B:Gliese 644 A-B"
{
RA 253.870000
Dec -8.336389
Distance 21.047
}
82817 "Wolf 630 A:Gliese 644 A:V1054 Oph"
{
OrbitBarycenter "Wolf 630 A-B"
SpectralType "M2.5V"
AppMag 9.72
EllipticalOrbit { # fully specified orientation
Period 1.71727
SemiMajorAxis 0.86 # mass ratio 0.45:(0.34+0.30)
Eccentricity 0.043
Inclination 69.7
AscendingNode 0.1
ArgOfPericenter 224.0
MeanAnomaly 325.6
}
}
Barycenter "Wolf 630 B:Gliese 644 B"
{
OrbitBarycenter "Wolf 630 A-B"
EllipticalOrbit { # fully specified orientation
Period 1.71727
SemiMajorAxis 0.60 # mass ratio 0.45:(0.34+0.30)
Eccentricity 0.0433
Inclination 69.7
AscendingNode 0.1
ArgOfPericenter 44.0
MeanAnomaly 325.6
}
}
"Wolf 630 Ba:Gliese 644 Ba"
{
OrbitBarycenter "Wolf 630 B"
SpectralType "M3V"
AppMag 10.54
EllipticalOrbit {
Period 0.008119 # 2.965522 dy
SemiMajorAxis 0.017 # mass ratio 0.34:0.30
Eccentricity 0.026
Inclination 70 # orbit of Bab said to be
AscendingNode 0 # in same plane as AB
}
}
"Wolf 630 Bb:Gliese 644 Bb"
{
OrbitBarycenter "Wolf 630 B"
SpectralType "M4V"
AppMag 10.63
EllipticalOrbit {
Period 0.008119 # 2.965522 dy
SemiMajorAxis 0.018 # mass ratio 0.34:0.30
Eccentricity 0.026
Inclination 70 # orbit of Bab said to be
AscendingNode 0 # in same plane as AB
ArgOfPericenter 180
}
}
"Wolf 630 C:Gliese 644 C:VB 8"
{
RA 253.899167
Dec -8.394444
Distance 21.047
SpectralType "M7V"
AppMag 16.80
}
82809 "Wolf 629:Wolf 630 D:Gliese 643"
{
RA 253.855000
Dec -8.322500
Distance 21.047
SpectralType "M3.5V"
AppMag 11.74
}
114622 # Gliese 892
{
RA 348.320833
Dec 57.168333
Distance 21.261
SpectralType "K3V"
AppMag 5.56
}
"LHS 271:Luyten 100-115:GJ 1128"
{
RA 145.693333
Dec -68.885000
Distance 21.311
SpectralType "M4.5V"
AppMag 12.78
}
"Luyten 1190-34:GL Vir:GJ 1156"
{
RA 184.751250
Dec 11.125278
Distance 21.332
SpectralType "M5.0V"
AppMag 13.80
}
80459 # Gliese 625
{
RA 246.352500
Dec 54.304167
Distance 21.488
SpectralType "M1.5V"
AppMag 10.10
}
53767 # Ross 104
{
RA 165.017917
Dec 22.833056
Distance 21.721
SpectralType "M2.5V"
AppMag 10.02
}
# Delfosse, X. et al. (1999) "New Neighbours I: 13 new
# companions to nearby M dwarfs" A&A, 344, 897
# (http://aa.springer.de/papers/9344003/2300897/small.htm)
Barycenter "Ross 775:Gliese 829"
{
RA 322.403333
Dec 17.643333
Distance 22.001
}
106106 "Ross 775 A:Gliese 829 A"
{
OrbitBarycenter "Ross 775"
SpectralType "M3.5V"
AppMag 11.06
EllipticalOrbit {
Period 0.146 # 53.2dys
SemiMajorAxis 0.11 # estimated from mass ratio 0.26:0.26
ArgOfPericenter 180
}
}
"Ross 775 B:Gliese 829 B"
{
OrbitBarycenter "Ross 775"
SpectralType "M3.5V"
AppMag 11.06
EllipticalOrbit {
Period 0.146 # 53.2dys
SemiMajorAxis 0.11 # estimated from mass ratio 0.26:0.26
}
}
# Delfosse, X. et al. (1999) "New Neighbours I: 13 new
# companions to nearby M dwarfs" A&A, 344, 897
# (http://aa.springer.de/papers/9344003/2300897/small.htm)
Barycenter "Giclas 41-14:GJ 3522"
{
RA 134.734583
Dec 8.473889
Distance 22.089
}
Barycenter "Giclas 41-14 A:GJ 3522 A"
{
OrbitBarycenter "Giclas 41-14"
EllipticalOrbit {
Period 11.8 # estimate
SemiMajorAxis 1.3 # from AB separation and mass ratio (0.19+0.17):0.17
}
}
"Giclas 41-14 Aa:GJ 3522 Aa"
{
OrbitBarycenter "Giclas 41-14 A"
SpectralType "M5.5V" # from estimated mass
AppMag 11.9
EllipticalOrbit {
Period 0.021 # 7.6dys
SemiMajorAxis 0.0255 # estimated from mass ratio 0.19:0.17
}
}
"Giclas 41-14 Ab:GJ 3522 Ab"
{
OrbitBarycenter "Giclas 41-14 A"
SpectralType "M6V" # from estimated mass
AppMag 12.1
EllipticalOrbit {
Period 0.021 # 7.6dys
SemiMajorAxis 0.0285 # estimated from mass ratio 0.19:0.17
ArgOfPericenter 180
}
}
"Giclas 41-14 B:GJ 3522 B"
{
OrbitBarycenter "Giclas 41-14"
SpectralType "M6V" # from mass
AppMag 12.3
EllipticalOrbit {
Period 11.8 # estimate
SemiMajorAxis 2.9 # from AB separation and mass ratio (0.19+0.17):0.17
ArgOfPericenter 180
}
}
Barycenter "XI Boo:37 Boo:Gliese 566"
{
RA 222.847500
Dec 19.100556
Distance 22.102
}
72659 "XI Boo A:37 Boo A:Gliese 566 A"
{
OrbitBarycenter "XI Boo"
SpectralType "G8V"
AppMag 4.70
EllipticalOrbit {
Period 151.505
SemiMajorAxis 13.93 # mass ratio 0.94:0.67
Eccentricity 0.512
Inclination 82
AscendingNode 270
ArgOfPericenter 159
MeanAnomaly 215
}
}
"XI Boo B:37 Boo B:Gliese 566 B"
{
OrbitBarycenter "XI Boo"
SpectralType "K4V"
AppMag 6.97
EllipticalOrbit {
Period 151.505
SemiMajorAxis 19.55 # mass ratio 0.94:0.67
Eccentricity 0.512
Inclination 82
AscendingNode 270
ArgOfPericenter 339
MeanAnomaly 215
}
}
53020 # Wolf 358
{
RA 162.717083
Dec 6.808056
Distance 22.187
SpectralType "M4.0V"
AppMag 11.67
}
"Ross 619:Gliese 299"
{
RA 122.989583
Dec 8.774444
Distance 22.294
SpectralType "M4.0V"
AppMag 12.82
}
113296 # Ross 671
{
RA 344.145000
Dec 16.553333
Distance 22.372
SpectralType "M1.5V"
AppMag 8.66
}
14101 "LP 771-95 A:Luyten 730-18:GJ 3192 A:RECONS 4"
{
RA 45.46411209
Dec -16.593372777
Distance 22.544
SpectralType "M3V"
AppMag 11.22
}
"LP 771-96:LP 771-95 B:GJ 3193"
{
RA 45.46547306
Dec -16.59479288
Distance 22.544
SpectralType "M3V"
AppMag 11.77
}
"LP 771-95 C"
{
RA 45.46432292
Dec -16.59359277
Distance 22.544
SpectralType "M5V"
AppMag 12.63
}
103096 # Gliese 809
{
RA 313.332500
Dec 62.154444
Distance 23.037
SpectralType "M0.0V"
AppMag 8.56
}
"Luyten 97-12:Gliese 293"
{
RA 118.311250
Dec -67.791944
Distance 23.099
SpectralType "DQ9"
AppMag 14.08
}
"GJ 1286"
{
RA 353.794583
Dec -2.390278
Distance 23.584
SpectralType "M5.5V"
AppMag 14.67
}
Barycenter "Gliese 667:CD-34 11626" # orbit of (AB) & C unknown
{
RA 259.742645 # mass ratio (0.75+0.65):0.35
Dec -34.991008 #
Distance 23.597
}
Barycenter "Gliese 667 A-B:CD-34 11626 A-B"
{
RA 259.741667
Dec -34.990000
Distance 23.597
}
84709 "Gliese 667 A:CD-34 11626 A"
{
OrbitBarycenter "Gliese 667 A-B"
SpectralType "K4V"
AppMag 5.90
EllipticalOrbit {
Period 42.15
SemiMajorAxis 6.08 # mass ratio 0.75:0.65
Eccentricity 0.58
Inclination 137
AscendingNode 305
ArgOfPericenter 184
MeanAnomaly 206
}
}
"Gliese 667 B:CD-34 11626 B"
{
OrbitBarycenter "Gliese 667 A-B"
SpectralType "K5V"
AppMag 5.90
EllipticalOrbit {
Period 42.15
SemiMajorAxis 7.01 # mass ratio 0.75:0.65
Eccentricity 0.58
Inclination 137
AscendingNode 305
ArgOfPericenter 4
MeanAnomaly 206
}
}
"Gliese 667 C:CD-34 11626 C"
{
RA 259.746250
Dec -34.994722
Distance 23.597
SpectralType "M1.5V"
AppMag 10.26
}
51317 # Ross 446
{
RA 157.231667
Dec 0.840833
Distance 23.700
SpectralType "M2.0V"
AppMag 9.63
}
"LP 71-165:GJ 4083"
{
RA 274.740417
Dec 66.192222
Distance 23.721
SpectralType "M4.5V"
AppMag 13.49
}
Barycenter "268 Cet:Gliese 105" # orbit of A & B unknown
{
RA 39.028451 # mass ratio (0.81+0.08):0.21
Dec 6.883803 #
Distance 23.811
}
Barycenter "268 Cet A:Gliese 105 A"
{
RA 39.020417
Dec 6.886667
Distance 23.811
}
12114 "268 Cet Aa:Gliese 105 Aa"
{
OrbitBarycenter "268 Cet A"
SpectralType "K3V"
AppMag 5.81
EllipticalOrbit {
Period 60
SemiMajorAxis 1.3 # mass ratio 0.81:0.08
Eccentricity 0.75
Inclination 82 # "nearly face-on orbit"
AscendingNode 310 #
}
}
"268 Cet Ab:Gliese 105 Ab"
{
OrbitBarycenter "268 Cet A"
SpectralType "M7.5V"
AppMag 16.90
EllipticalOrbit {
Period 60
SemiMajorAxis 13.7 # mass ratio 0.81:0.08
Eccentricity 0.75
Inclination 82 # "nearly face-on orbit"
AscendingNode 310 #
ArgOfPericenter 180
}
}
"268 Cet B:Gliese 105 B:BX Cet"
{
RA 39.062500
Dec 6.871667
Distance 23.811
SpectralType "M3.5V"
AppMag 11.66
}
"Luyten 788-34:GJ 4274"
{
RA 335.777500
Dec -17.606944
Distance 24.268
SpectralType "M4.5V"
AppMag 13.26
}
3765 # 96 Psc
{
RA 12.095833
Dec 5.280556
Distance 24.275
SpectralType "K1V"
AppMag 5.72
}
2021 # Bet Hyi
{
RA 6.437917
Dec -77.254167
Distance 24.366
SpectralType "G1IV"
AppMag 2.80
}
7981 # 107 Psc
{
RA 25.624167
Dec 20.268333
Distance 24.390
SpectralType "K1V"
AppMag 5.24
}
# Delfosse, X. et al. (1999) "New Neighbours I: 13 new
# companions to nearby M dwarfs" A&A, 344, 897
# (http://aa.springer.de/papers/9344003/2300897/small.htm)
Barycenter "Giclas 203-47:GJ 3991"
{
RA 257.381250
Dec 43.681111
Distance 24.478
}
83945 "Giclas 203-47 A:GJ 3991 A"
{
OrbitBarycenter "Giclas 203-47"
SpectralType "M3.5V"
AppMag 11.80
EllipticalOrbit {
Period 0.04 # 15 days
SemiMajorAxis 0.6 # estimated from mass ratio 0.3:0.5
Eccentricity 0.07
ArgOfPericenter 180
}
}
"Giclas 203-47 B:GJ 3991 B"
{
OrbitBarycenter "Giclas 203-47"
SpectralType "D"
AbsMag 13.7 # for a 0.5-solar-mass white dwarf
EllipticalOrbit {
Period 0.04 # 15 days
SemiMajorAxis 0.4 # estimated from mass ratio 0.3:0.5
Eccentricity 0.07
}
}
"GJ 1224"
{
RA 271.887083
Dec -15.964167
Distance 24.598
SpectralType "M4.5V"
AppMag 13.61
}
Barycenter "MU Cas:30 Cas:Gliese 53"
{
RA 17.068333
Dec 54.920278
Distance 24.603
}
5336 "MU Cas A:30 Cas A:Gliese 53 A"
{
OrbitBarycenter "MU Cas"
SpectralType "G5VI"
AppMag 5.17
EllipticalOrbit { # fully specified orientation
Period 21.43
SemiMajorAxis 0.28 # mass ratio 0.6:0.15
Eccentricity 0.61
Inclination 25.4
AscendingNode 336.4
ArgOfPericenter 316.6
MeanAnomaly 47.0
}
}
"MU Cas B:30 Cas B:Gliese 53 B"
{
OrbitBarycenter "MU Cas"
SpectralType "MVI"
AppMag 11.00
EllipticalOrbit { # fully specified orientation
Period 21.43
SemiMajorAxis 1.12 # mass ratio 0.6:0.15
Eccentricity 0.61
Inclination 25.4
AscendingNode 336.4
ArgOfPericenter 136.6
MeanAnomaly 47.0
}
}
65859 # Ross 490
{
RA 202.499167
Dec 10.376944
Distance 24.603
SpectralType "M1.0V"
AppMag 9.05
}
"Luyten 1813-21:GJ 3378"
{
RA 90.290417
Dec 59.598333
Distance 24.691
SpectralType "M3.5V"
AppMag 11.71
}
12781 # Ross 556
{
RA 41.064583
Dec 25.523333
Distance 24.879
SpectralType "M3.0V"
AppMag 10.55
}
113368 # Fomalhaut A
{
RA 344.412917
Dec -29.622222
Distance 24.978
SpectralType "A3V"
AppMag 1.15
}
113283 # Fomalhaut B
{
RA 344.100417
Dec -31.565556
Distance 24.978
SpectralType "K4V"
AppMag 6.46
}
61874 # Luyten 399-68
{
RA 190.192917
Dec -43.566667
Distance 24.990
SpectralType "M3.5V"
AppMag 12.24
}
85295 # Gliese 673
{
RA 261.438333
Dec 2.111389
Distance 25.173
SpectralType "K7.0V"
AppMag 7.53
}
91262 # Vega
{
RA 279.234583
Dec 38.783611
Distance 25.282
SpectralType "A0V"
AppMag 0.03
RotationPeriod 12.4
SemiAxes [ 1 0.95 1 ] # edited from 0.81 to 0.95 - equatorial radius 23% greater than polar
Obliquity 28 # rotation pole points
EquatorAscendingNode 15 # towards solar system
}
Barycenter "Alula Australis:XI UMa:53 UMa:Gliese 423"
{
RA 169.54545
Dec 31.529134
Distance 27.294
}
Barycenter "Alula Australis A:XI UMa A:53 UMa A:Gliese 423 A"
{
OrbitBarycenter "Alula Australis"
EllipticalOrbit { # fully specified orientation
Period 59.878
SemiMajorAxis 9.30 # mass ratio (1.05+0.4):(1.05+0.08)
Eccentricity 0.398
Inclination 14.09
AscendingNode 192.13
ArgOfPericenter 9.69
MeanAnomaly 29.62
}
}
Barycenter "Alula Australis B:XI UMa B:53 UMa B:Gliese 423 B"
{
OrbitBarycenter "Alula Australis"
EllipticalOrbit { # fully specified orientation
Period 59.878
SemiMajorAxis 11.93 # mass ratio (1.05+0.4):(1.05+0.08)
Eccentricity 0.398
Inclination 14.09
AscendingNode 192.13
ArgOfPericenter 189.69
MeanAnomaly 29.62
}
}
55203 "Alula Australis Aa:XI UMa Aa:53 UMa Aa:Gliese 423 Aa"
{
OrbitBarycenter "Alula Australis A"
SpectralType "G0V"
AppMag 4.33
EllipticalOrbit { # fully specified orientation
Period 1.832
SemiMajorAxis 0.13 # mass ratio 1.05:0.4
Eccentricity 0.53
Inclination 137.0
AscendingNode 298.1
ArgOfPericenter 187.9
MeanAnomaly 133.8
}
}
"Alula Australis Ab:XI UMa Ab:53 UMa Ab:Gliese 423 Ab"
{
OrbitBarycenter "Alula Australis A"
SpectralType "M2V" # from estimated mass of 0.4
AbsMag 9.3 # for estimated spectral class
EllipticalOrbit { # fully specified orientation
Period 1.832
SemiMajorAxis 0.35 # mass ratio 1.05:0.4
Eccentricity 0.53
Inclination 137.0
AscendingNode 298.1
ArgOfPericenter 7.9
MeanAnomaly 133.8
}
}
"Alula Australis Ba:XI UMa Ba:53 UMa Ba:Gliese 423 Ba"
{
OrbitBarycenter "Alula Australis B"
SpectralType "G0V"
AppMag 4.8
EllipticalOrbit {
Period 0.0109 # 3.98dy
SemiMajorAxis 0.004 # mass ratio 1.05:0.08
Eccentricity 0
ArgOfPericenter 180
}
}
"Alula Australis Bb:XI UMa Bb:53 UMa Bb:Gliese 423 Bb"
{
OrbitBarycenter "Alula Australis B"
SpectralType "L" # brown dwarf
AbsMag 21 # for approximate radius in Celestia
EllipticalOrbit {
Period 0.0109 # 3.981dy
SemiMajorAxis 0.056 # mass ratio 1.05:0.08
Eccentricity 0
}
}
# Washington Multiplicity Catalog
# (http://ad.usno.navy.mil/wds/wmc/wmc_post191.html)
"Alula Australis C:XI UMa C:53 UMa C:Gliese 423 C"
{
RA 169.53272
Dec 31.539614
Distance 27.294
SpectralType "M7V" # from luminosity
AppMag 15
}
#======================================================
# Delfosse, X. et al. (1999) "New Neighbours I: 13 new
# companions to nearby M dwarfs" A&A, 344, 897
# (http://aa.springer.de/papers/9344003/2300897/small.htm)
# Newer RECONS parallax places system well beyond 25ly
Barycenter "GJ 2130" # orbit of A & B unknown
{
RA 266.556484 # mass ratio 0.3:(0.19+0.15)
Dec -32.102873 #
Distance 48.536
}
86961 # GJ 2130 A
{
RA 266.552500
Dec -32.103611
Distance 48.536
SpectralType "M2V"
AppMag 10.49
}
86963 "GJ 2130 Ba:CD-32 13298 A"
{
RA 266.560000
Dec -32.102222
Distance 48.536
SpectralType "M5.5V" # from apparent magnitude
AppMag 11.75
}
"GJ 2130 Bb:CD-32 13298 B" #true separation of Bab not known
{
RA 266.5603
Dec -32.102222
Distance 48.536
SpectralType "M6.5V" # from apparent magnitude
AppMag 12.75
}
"Dan Phantom:Dark Danny:3C58:Quark Star"
{
RA 360.0
Dec 62.1
Distance 10000
SpectralType "Q"
AppMag 8.17
Radius 10
Texture "Quark-night.png"
}
"Tucker Foley:V436 Cep"
{
RA 327.8769212
Dec 57.7807745
Distance 120
SpectralType "G5III"
AppMag 2.1
Radius 14968300
}
"Samantha Sam Manson:Sam Manson"
{
RA 357.77771264
Dec 63.7894944
Distance 71.29
SpectralType "O2V"
AppMag 1.995
Radius 12531600
}
"Penelope Spectra"
{
RA 316.7918875
Dec 38.88521167
Distance 1283
AppMag 5.29
SpectralType "WNh"
Radius 31329000
}
"Vlad Masters:Thorne-Zytkow object:TZO"
{
RA 128.7918875
Dec -21.27388521167
Distance 12950
AppMag 6.92
SpectralType "M1Ia"
Radius 1336007800
}
"Vlad Plasmius:Thorne-Zytkow object core:Neutron Star core"
{
RA 128.7918875
Dec -21.27388521167
Distance 12950
AppMag 15
SpectralType "Q"
Radius 12.5
}