12181-5531 HJ 4511AB

 
 
12h 18m 03.77s -55 31' 24.5" P.A. 297 sep 8.8 mag 9.94,10.66 Sp A2IV
 
 
Coord 2000
12181-5531
Discov num
HJ 4511
Comp
AB
Coord arcsec 2000
12 18 03.77 -55 31 24.5
Date first
1836
Date last
2000
Obs
14
Pa first
302
Pa last
297
P.A. Now (θ)
297°
Sep first
12.0
Sep last
8.8
Sep. Now (ρ)
8.8"
Mag pri
9.94
Mag sec
10.66
delta mag (ΔM)
0.72
Spectral class
A2IV (white)
Pri motion ra
-016
Sec motion ra
-018
Pri motion dec
-005
Sec motion dec
+001
Notes
rPM=0.351
Nature of this double is uncertain.
 
 
12181-5531 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 239821 12181-5531 HJ 4511 AB 1836 2000 14 297 8.8 9.94 10.66 0.72 <===
Show 239821 12181-5531 B 9017 AC 1943 2000 4 0 13.3 9.94 13.40 3.46
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
296.8
Precise sep
8.8
Cdsa2 id
HJ 4511 AB
Constellation
Centaurus
SAO
239821
Tycho2
8637-02141-1
HD
106941
Ra deg
12.301047222222223
De deg
-55.523472222222225
last precise pa
296.8
last precise sep
8.8
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12181-5531 HJ 4511 AB 2000 14 297 8.8 9.94 10.66 A2IV D 121803.77-553124.5
12181-5531 HJ 4511 AB 2010 15 297 8.8 9.94 10.66 A2IV 121803.77-553124.5

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