16540-4143 SNA 50 AB (HD 152218)

 
 
16h 53m 59.99s -41° 42' 52.8" P.A. 213.00 sep 4.3 mag 7.07,10.85 Sp O9IV
 
 
Coord 2000 16540-4143 Discov num SNA  50 Comp AB Coord arcsec 2000 16 53 59.99 -41 42 52.8
Date first 2012 Date last 2012 Obs 1
Pa first 213 Pa last 212.8 P.A. Now (θ) 212.8°
Sep first 4.3 Sep last 4.25 Sep. Now (ρ) 4.25"
Mag pri 7.07 Mag sec 10.85 delta mag (ΔM) 3.78 Spectral class O9IV (blue)
Pri motion ra -004 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.
 
 
16540-4143 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 152218 227376 16 53 60 -41 42 53 SNA 50 AB 2012 1 213 4.3 7.07 10.85 3.78 <===
Show 227376 16 53 60 -41 42 53 SEE 296 AC 2015 6 240 19.9 7.58 13.60 6.02
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 152218 Constellation Scorpius SAO 227376 Tycho2 7876-02134-1
Gaia DR2 5966522667303699072 HD 152218 DM CP-41 7713