16542-4151 WFC 183 AB (NSV8023)

 
 
16h 54m 11.64s -41° 50' 57.3" P.A. 35.00 sep 31.0 mag 6.39,7.74 Sp O9.5Ib
 
 
Coord 2000 16542-4151 Discov num WFC 183 Comp AB Coord arcsec 2000 16 54 11.64 -41 50 57.3
Date first 1901 Date last 2022 Obs 10
Pa first 37 Pa last 35.1 P.A. Now (θ) 35.1°
Sep first 30.6 Sep last 30.98 Sep. Now (ρ) 30.98"
Mag pri 6.39 Mag sec 7.74 delta mag (ΔM) 1.35 Spectral class O9.5Ib (blue)
Pri motion ra +000 Sec motion ra -001
Pri motion dec -001 Sec motion dec -002
Notes N (See Notes)
rPM=0.632
Nature of this double is uncertain.
 
 
16542-4151 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show NSV8023 227383 16 54 12 -41 50 57 WFC 183 AB 2022 10 35 31.0 6.39 7.74 1.35 <===
Show 16 54 13 -41 50 32 SNA 54 Ba,Bb 2012 1 348 0.0 7.50 10.80 3.30
Show 16 54 13 -41 50 32 SNA 54 BC 2012 1 142 1.0 7.40 12.23 4.83
Quadruple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name NSV8023 Constellation Scorpius SAO 227383 Tycho2 7876-02229-1
Gaia DR2 5966509748041919616 HD 152249 HR 6263 GC 22737
DM CD-4111036