16542-4151 SNA  54Ba,Bb

 
 
16H 54M 13.20S -41 50' 32.5" P.A. 348 MAG 7.50,10.80 SP O9IV
 
 
Coord 2000
16542-4151
Discov num
SNA  54
Comp
Ba,Bb
Coord arcsec 2000
16 54 13.20 -41 50 32.5
Date first
2012
Date last
2012
Obs
1
Pa first
348
Pa last
348
P.A. Now (θ)
348°
Sep first
0.0
Sep last
0.0
Sep. Now (ρ)
0"
Mag pri
7.50
Mag sec
10.80
delta mag (ΔM)
3.3
Spectral class
O9IV (blue)
Pri motion ra
-001
Sec motion ra
Pri motion dec
-002
Sec motion dec
Notes
N V K (See Notes, Proper motion indicates physical, K-band or other infrared magnitudes)
This double is physical.
 
 
16542-4151 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 227383 16542-4151 WFC 183 AB 1901 1999 8 36 30.5 6.39 7.74 1.35
Show 227385 16542-4151 SNA 54 Ba,Bb 2012 2012 1 348 0.0 7.50 10.80 3.30 <===
Show 227385 16542-4151 SNA 54 BC 2012 2012 1 142 1.0 7.40 12.23 4.83
Quadruple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Scorpius
SAO
227385
Tycho2
7876-02816-1
last precise pa
348.1
last precise sep
0.043