12547-5909 BLK 9 Aa,Ab (Lam Cru)

 
 
12h 54m 39.18s -59° 08' 48.1" P.A. 170.00 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 W
Nature of this double is uncertain.
 
 
12547-5909 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Lam Cru 240368 12 54 39 -59 08 48 BLK 9 Aa,Ab 1987 1 170 0.6 4.60 <===
Show 12 54 39 -59 08 48 SHT 48 AB 2000 1 255 3.5 5.64 16.17 10.53
Show 12 54 39 -59 08 48 SHT 48 AC 2000 1 308 6.9 5.64 16.70 11.06
Quadruple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Lam Cru Constellation Crux SAO 240368 HIP 63007
Tycho2 8660-02695-1 Gaia DR2 6057088443681190272 HD 112078 HR 4897
GC 17514 CP CP-58 4584 Bayer Lambda Crucis Bayer name Lam Cru
Distance 117.65 Distance ly 383.77 Bayer greek λ Cru