16544-4150 SNA 55 AC

 
 
16h 54m 25.95s -41° 49' 55.8" P.A. 40.00 sep 1.1 mag 6.93,12.92 Sp O8IV
 
 
Coord 2000 16544-4150 Discov num SNA  55 Comp AC Coord arcsec 2000 16 54 25.95 -41 49 55.8
Date first 2011 Date last 2011 Obs 1
Pa first 40 Pa last 40.4 P.A. Now (θ) 40.4°
Sep first 1.1 Sep last 1.13 Sep. Now (ρ) 1.13"
Mag pri 6.93 Mag sec 12.92 delta mag (ΔM) 5.99 Spectral class O8IV (blue)
Pri motion ra -015 Sec motion ra
Pri motion dec -009 Sec motion dec
Notes N V K (See Notes, Proper motion indicates physical, K-band or other infrared magnitudes)
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
This double is physical.
 
 
16544-4150 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 326331 16 54 26 -41 49 56 HJ 4893 AB 2022 11 52 7.3 7.44 9.60 2.16
Show 16 54 26 -41 49 56 SNA 55 AC 2011 1 40 1.1 6.93 12.92 5.99 <===
Show 16 54 26 -41 49 56 SNA 55 AD 2015 2 326 3.4 6.93 12.63 5.70
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Scorpius Tycho2 7876-02319-1 Gaia DR2 5966509267005564288 HD 326331