# Nearby stars and star orbits out to 25 light years, supplementary
# to Celestia's stars.dat.

# Data are mainly derived from the RECONS survey tabulation at
# http://joy.chara.gsu.edu/RECONS/TOP100.htm. In particular, the distances
# given are derived from RECONS's weighted average parallaxes, rather than
# pure Hipparcos data.

# Orbits are obtained largely from the Sixth Catalog of Orbits of Visual
# Binary Stars (http://ad.usno.navy.mil/wds/orb6.html) and the Ninth
# Catalogue of Spectroscopic Binary Orbits (http://sb9.astro.ulb.ac.be).

# For binary orbits, the direction of an orbit's node on the plane of the 
# sky is often unknown - the orbits given below will appear correct when
# viewed from Earth, but the true orbit may be tilted either towards 
# or away from the Earth.
# For a few orbits the nature of the node is known - these are
# marked with the phrase "fully specified orientation".
# Barycenters positions are mainly based on mass estimates from RECONS:
# the figures used are added as comments belows.

0 "Sol:Sun"
{
	RA 0
	Dec 0
	Distance 0.00326167 
	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
}

"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
	}
}

Barycenter "Luyten 726-8:Gliese 65"
{
	RA 24.755529
	Dec -17.950278
	Distance 8.728
}

"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
	}
}

"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"
{
	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
}

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
}

"Luyten 143-23:GJ 3618"
{
	RA 161.132500
	Dec -61.193889
	Distance 15.841
	SpectralType "M5.5V"
	AppMag 13.92
}

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"
{
	RA 54.896667
	Dec -35.428056
	Distance 16.195
	SpectralType "M9.0V"
	AppMag 18.50
}

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 0.88 1 ] # equatorial radius 14% greater than polar
}

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 099-49:GJ 3379"
{
	RA 90.015000
	Dec 2.705556
	Distance 17.517
	SpectralType "M3.5V"
	AppMag 11.33
}

57544 # Gliese 445
{
	RA 176.922500
	Dec 78.691111
	Distance 17.551
	SpectralType "M3.5V"
	AppMag 10.79
}

Barycenter "Luyten 722-22:GJ 1005"
{
	RA 3.867083
	Dec -16.133889
	Distance 17.553
}

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
	}
}

67155 # Lalande 25372
{
	RA 206.432500
	Dec 14.891389
	Distance 17.706
	SpectralType "M1.5V"
	AppMag 8.46
}

"LP 656-38:RECONS 3:GJ 3323"
{
	RA 75.487500
	Dec -6.946389
	Distance 17.706
	SpectralType "M3.5V"
	AppMag 12.15
}

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
}

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
}

"Luyten 347-14:Gliese 754"
{
	RA 290.200833
	Dec -45.558889
	Distance 19.426
	SpectralType "M4.5V"
	AppMag 12.23
}

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
}

"LHS 2090:LP 368-128"
{
	RA 135.098333
	Dec 21.834722
	Distance 20.511
	SpectralType "M6.0V"
	AbsMag 13.5 # for spectral class
}

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 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
	}
}

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
}

14101 "LP 771-95 A:Luyten 730-18:GJ 3192 A:RECONS 4"
{
	RA 45.46411209
	Dec -16.593372777
	Distance 22.371
	SpectralType "M3V"
	AppMag 11.93
}

"LP 771-96:LP 771-95 B:GJ 3193"
{
	RA 45.46547306
	Dec -16.59479288
	Distance 22.371
	SpectralType "M3V"
	AppMag 11.3
}

"LP 771-95 C"
{
	RA 45.46432292
	Dec -16.59359277
	Distance 22.371
	SpectralType "M5V"
	AppMag 13.1
}

113296 # Ross 671
{
	RA 344.145000
	Dec 16.553333
	Distance 22.372
	SpectralType "M1.5V"
	AppMag 8.66
}

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

	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
}
