16542-4139 SNA 53 AC

16h 54m 11.52s -41° 38' 30.9" P.A. 22.00 sep 5.1 mag 6.59,12.65 Sp O9.5III

Coord 2000 16542-4139 Discov num SNA  53 Comp AC Coord arcsec 2000 16 54 11.52 -41 38 30.9
Date first 2012 Date last 2012 Obs 1
Pa first 22 Pa last 22.3 P.A. Now (θ) 22.3°
Sep first 5.1 Sep last 5.11 Sep. Now (ρ) 5.11"
Mag pri 6.59 Mag sec 12.65 delta mag (ΔM) 6.06 Spectral class O9.5III (blue)
Pri motion ra +000 Sec motion ra
Pri motion dec -001 Sec motion dec
Notes N K (See Notes, 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

Nature of this double is uncertain.



16542-4139 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 227384 16 54 12 -41 38 31 SNA 53 Aa,Ab 2014 15 1 0.0 6.90 8.30 1.40 Y
Show 227384 16 54 12 -41 38 31 SNA 53 AB 2012 1 313 3.2 6.59 13.83 7.24
Show 227384 16 54 12 -41 38 31 SNA 53 AC 2012 1 22 5.1 6.59 12.65 6.06 <===


Quadruple system
3 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Constellation Scorpius SAO 227384 Tycho2 7876-02339-1 Gaia DR2 5966524419650392832
HD 152247