12043-2102 BU  458

 
 
12h 04m 17.11s -21 02' 21.0" P.A. 236 sep 30.1 mag 7.87,9.97 Sp A2II dist. 225.73 pc (736.33 l.y.)
 
 
Coord 2000
12043-2102
Discov num
BU  458
Comp
Coord arcsec 2000
12 04 17.11 -21 02 21.0
Date first
1879
Date last
2014
Obs
21
Pa first
233
Pa last
236
P.A. Now (θ)
236°
Sep first
30.4
Sep last
30.1
Sep. Now (ρ)
30.1"
Mag pri
7.87
Mag sec
9.97
delta mag (ΔM)
2.1
Spectral class
A2II (white)
Pri motion ra
-009
Sec motion ra
-008
Pri motion dec
-014
Sec motion dec
-019
Notes
Y (Parallax indicates components are non-physical)
rPM=0.247 (< 0.3, Physical double)
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
236.2
Precise sep
30.14
Constellation
Corvus
SAO
180426
HIP
58861
Tycho2
6100-00988-1
HD
104835
BD
BD-20 3569
Distance
225.73
Distance ly
736.33
last precise pa
236.2
last precise sep
30.14
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12043-2102 BU 458 1999 14 233 30.5 7.87 9.97 A2II YD 120417.11-210221.0
12043-2102 BU 458 2008 15 233 31.9 7.87 9.97 A2II YD 120417.11-210221.0
12043-2102 BU 458 2012 16 233 30.6 7.87 9.97 A2II YD 120417.11-210221.0
12043-2102 BU 458 2014 21 236 30.1 7.87 9.97 A2II Y 120417.11-210221.0

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