12547-5909 BLK   9Aa,Ab

 
 
12H 54M 39.18S -59 08' 48.1" P.A. 170 SEP 0.6 MAG 4.60, SP B4VNE DIST. 117.65 PC (383.77 L.Y.)
 
 
Coord 2000
12547-5909
Discov num
BLK   9
Comp
Aa,Ab
Coord arcsec 2000
12 54 39.18 -59 08 48.1
Date first
1987
Date last
1987
Obs
1
Pa first
170
Pa last
170
P.A. Now (θ)
170°
Sep first
0.6
Sep last
0.6
Sep. Now (ρ)
0.6"
Mag pri
4.60
Mag sec
delta mag (ΔM)
Spectral class
B4Vne (blue-white)
Pri motion ra
-033
Sec motion ra
Pri motion dec
-015
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
12547-5909 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 240368 12547-5909 BLK 9 Aa,Ab 1987 1987 1 170 0.6 4.60 <===
Show Lam Cru 240368 12547-5909 SHT 48 AB 2000 2000 1 255 3.5 5.64 16.17 10.53
Show 240368 12547-5909 SHT 48 AC 2000 2000 1 308 6.9 5.64 16.70 11.06
Quadruple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Crux
SAO
240368
HIP
63007
Tycho2
8660-02695-1
HD
112078
HR
4897
GC
17514
CP
CP-58 4584
Bayer
Lambda Crucis
Bayer name
Lam Cru
Distance
117.65
Distance ly
383.77
last precise pa
170
last precise sep
0.6