17301-3343 HWE 39 AB (HD 158320)

 
 
17h 30m 05.64s -33° 42' 58.9" P.A. 322.00 sep 4.3 mag 6.74,9.53 Sp B0.5Ib dist. 12500 pc (40775 l.y.)
 
 
Coord 2000 17301-3343 Discov num HWE  39 Comp AB Coord arcsec 2000 17 30 05.64 -33 42 58.9
Date first 1876 Date last 2016 Obs 18
Pa first 320 Pa last 322.3 P.A. Now (θ) 322.3°
Sep first 3.9 Sep last 4.29 Sep. Now (ρ) 4.29"
Mag pri 6.74 Mag sec 9.53 delta mag (ΔM) 2.79 Spectral class B0.5Ib (blue-white)
Pri motion ra +010 Sec motion ra +001
Pri motion dec -013 Sec motion dec -003
Notes N (See Notes)
rPM=0.82
This double is not physical.
 
 
17301-3343 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 158320 208881 17 30 06 -33 42 59 HWE 39 AB 2016 18 322 4.3 6.74 9.53 2.79 <===
Show 208881 17 30 06 -33 42 59 HO 646 AC 2016 12 314 14.1 6.74 11.30 4.56
Show 208881 17 30 06 -33 42 59 HO 646 AD 2016 16 28 59.0 6.74 9.41 2.67
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 158320 Constellation Scorpius SAO 208881 HIP 85641
Tycho2 7379-00629-1 Gaia DR2 4054440816690447872 HD 158320 GC 23682
CD CD-3312117 Distance 12500 Distance ly 40775