16569-4031 COO 289 AD

 
 
16h 56m 54.67s -40° 30' 44.4" P.A. 237.00 sep 15.2 mag 7.27,9.61 Sp O6.5IIIf: dist. 395.26 pc (1289.34 l.y.)
 
 
Coord 2000 16569-4031 Discov num COO 289 Comp AD Coord arcsec 2000 16 56 54.67 -40 30 44.4
Date first 1897 Date last 2016 Obs 10
Pa first 239 Pa last 236.8 P.A. Now (θ) 236.8°
Sep first 15.1 Sep last 15.24 Sep. Now (ρ) 15.24"
Mag pri 7.27 Mag sec 9.61 delta mag (ΔM) 2.34 Spectral class O6.5IIIf: (blue)
Pri motion ra +001 Sec motion ra +004
Pri motion dec -002 Sec motion dec -003
Notes N (See Notes)
rPM=0.632
Nature of this double is uncertain.
 
 
16569-4031 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 227479 16 56 55 -40 30 44 CHR 254 Aa,Ab 2014 5 310 0.1 7.50 9.30 1.80
Show 227479 16 56 55 -40 30 44 RST 5421 AB 2015 4 128 7.3 7.27 13.00 5.73
Show HD 152723 227479 16 56 55 -40 30 44 COO 289 AC 2016 10 253 7.9 7.27 9.48 2.21
Show 227479 16 56 55 -40 30 44 COO 289 AD 2016 10 237 15.2 7.27 9.61 2.34 <===
Show 227479 16 56 55 -40 30 44 COO 289 AE 2016 2 339 38.2 7.27 12.70 5.43
Show 16 56 54 -40 30 47 COO 289 CD 1999 7 221 7.9 9.48 9.61 0.13
Sextuple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Scorpius SAO 227479 HIP 82936 Tycho2 7872-02169-1
Gaia DR2 5969698194333785088 HD 152723 CD CD-4010986 CP CP-40 7650
Distance 395.26 Distance ly 1289.34