16539-4153 SNA 49 Aa,Ab

 
 
16h 53m 55.60s -41° 52' 51.4" P.A. 345.00 sep 0.1 mag 7.20,10.00 Sp O9.5III
 
 
Coord 2000 16539-4153 Discov num SNA  49 Comp Aa,Ab Coord arcsec 2000 16 53 55.60 -41 52 51.4
Date first 2012 Date last 2012 Obs 1
Pa first 345 Pa last 344.6 P.A. Now (θ) 344.6°
Sep first 0.1 Sep last 0.084 Sep. Now (ρ) 0.084"
Mag pri 7.20 Mag sec 10.00 delta mag (ΔM) 2.8 Spectral class O9.5III (blue)
Pri motion ra -002 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)
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
This double is physical.
 
 
16539-4153 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 227370 16 53 56 -41 52 51 SNA 49 Aa,Ab 2012 1 345 0.1 7.20 10.00 2.80 <===
Show 227370 16 53 56 -41 52 51 SNA 49 AB 2012 1 18 2.2 7.11 13.98 6.87
Show 227370 16 53 56 -41 52 51 SNA 49 AC 2012 1 332 2.9 7.11 13.34 6.23
Show HD 152219 227370 16 53 56 -41 52 51 SNA 49 AD 2012 1 145 5.1 7.11 11.26 4.15
Show 227370 16 53 56 -41 52 51 SNA 49 AE 2015 2 65 5.3 7.11 12.19 5.08
Show 227370 16 53 56 -41 52 51 SNA 49 AF 2012 2 175 7.2 7.11 13.15 6.04
Septuple system
6 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Scorpius SAO 227370 Tycho2 7876-02282-1 Gaia DR2 5966503597648760064
HD 152219