16545-4148 SNA  56Aa,Ab

 
 
16H 54M 32.00S -41 48' 18.8" P.A. 63 MAG 7.60,8.70 SP O9.5IV
 
 
Coord 2000
16545-4148
Discov num
SNA  56
Comp
Aa,Ab
Coord arcsec 2000
16 54 32.00 -41 48 18.8
Date first
2010
Date last
2016
Obs
11
Pa first
291
Pa last
63
P.A. Now (θ)
63°
Sep first
0.0
Sep last
0.0
Sep. Now (ρ)
0"
Mag pri
7.60
Mag sec
8.70
delta mag (ΔM)
1.1
Spectral class
O9.5IV (blue)
Pri motion ra
-002
Sec motion ra
Pri motion dec
+000
Sec motion dec
Notes
N V K (See Notes, Proper motion indicates physical, K-band or other infrared magnitudes)
This double is physical.
 
 
16545-4148 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 227400 16545-4148 SNA 56 Aa,Ab 2010 2016 11 63 0.0 7.60 8.70 1.10 <===
Show 227400 16545-4148 SNA 56 AB 2011 2011 1 187 3.2 7.24 11.06 3.82
Show 227400 16545-4148 SNA 56 AC 2011 2011 1 141 3.5 7.24 14.88 7.64
Quadruple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Scorpius
SAO
227400
Tycho2
7876-01997-1
HD
152314
last precise pa
62.6
last precise sep
0.004