Corvus (le Corbeau)
Le catalogue
ÉTOILES DOUBLES
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Désignation AD (2000.0) DE m1 m2 Écart PA Date Note Spectre
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STF 1604 AB 12 09 28.5 -11 51 25 6.6 9.4 9.2" 88° 2002 [ 1] G3V
STF 1604 AC 12 09 28.5 -11 51 25 6.9 8.1 11.9" 33° 2002
BU 920 12 15 46.7 -23 21 14 6.9 8.2 1.8" 304° 2000 Orb F7V
BU 921 A-BC 12 17 55.5 -24 00 48 7.0 10.7 3.4" 221° 1991 A0V
SHJ 145 Delta 12 29 52.0 -16 30 54 3.0 8.5 24.7" 216° 2002 [ 2] B9.5V
BU 28 AB 12 30 04.8 -13 23 35 6.5 9.6 2.0" 334° 1997 Orb[ 3] F9V
HJ 1218 Aa-B 12 35 42.8 -16 49 34 6.6 11.0 11.2" 261° 1933
STF 1669 AB 12 41 16.0 -13 00 51 5.9 5.9 5.2" 313° 1998 [ 4] F5V F5V
STF 1669 AC 12 41 16.0 -13 00 51 6.0 10.5 58.5" 235° 1988
STF 1669 BC 12 41 15.9 -13 00 50 6.1 10.6 57.8" 229° 1988
HU 738 12 43 47.7 -12 00 51 6.8 11.8 9.1" 259° 1959 K3III
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[ 1] AB: Mt. Wilson spectral types are G2 and K8. A is a
spectroscopic binary, and slightly variable.
[ 2] Delta Crv. B is BD-15@3481. Proper motion of B -206
-129. A may be variable.
[ 3] P = 162yr., a = 1.38", motion direct.
WS_1877 note seeing a distant (290".8) companion in 1874.26
[ 4] Both A and B are spectroscopic binaries, with periods
of 44.4 and 1.46d. Both may also be variable.
ÉTOILES VARIABLES
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Nom AD (2000) DE Type Max Min T (Jul) P (jours) F Spectre
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R 12 19.63 -19 15.3 M 6.7 14.4 v 2442781. 317.03 41 M4.5e-M9:e
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CIEL PROFOND
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Nom AD (2000) DE Type V B Dim. Dist. Notes
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NGC 4024 11 58.5 -18 21 GSAB0- 11.7 12.6 1.9x1.5' 1500 km/s
NGC 4027 11 59.5 -19 16 GSB(s)dm 11.1 11.7 3.2x2.4' 1510 km/s 8 Zw 158
NGC 4033 12 00.6 -17 51 GE6 11.7 12.6 2.6x1.1' 1410 km/s
NGC 4038 12 01.9 -18 52 GSB(s)mp 10.3 10.9 5.2x3.1' 1470 km/s
NGC 4039 12 01.9 -18 53 GSA(s)mp 10.5 11.2 3.1x1.6' 1500 km/s
NGC 4050 12 02.9 -16 22 GSB(r)ab 12.2 13.1 3.1x2.1' 1620 km/s
NGC 4094 12 05.9 -14 32 GSAB(rs)cd: 12.5 4.2x1.5' 1290 km/s
NGC 4177 12 12.7 -14 01 GSA(rs)cp: 13.2 1.7x1.1' 3940 km/s
NGC 4263 12 19.7 -12 14 GSAB(rs)bp 13.4 1.2x0.55' 4100 km/s
NGC 4361 12 24.5 -18 48 NP 3a+2 10.9 10.3 45"/110" 0.8 kpc *= 13.2
NGC 4462 12 29.4 -23 10 GSB(r)ab 11.8 12.8 3.2x1.2' 1680 km/s
NGC 4727 12 51.0 -14 20 GSAB(r)bcp: 12.6 1.4x1.1' 7500 km/s
NGC 4756 12 52.9 -15 25 GSAB0(s)/a? 12.4 13.4 1.6x1.3' 3970 km/s
NGC 4782 12 54.6 -12 34 GE0p 11.9 12.9 1.8x1.7' 3870 km/s VV 201
NGC 4783 12 54.6 -12 33 GE0p 12.3 13.2 1.8x1.7' 4510 km/s VV 201
NGC 4802 12 55.8 -12 03 GSAO(r)? 12.3 2.4x1.6' 920 km/s
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