17509-3342 HDO 280 AC

 
 
17h 50m 52.34s -33° 42' 20.4" P.A. 219.00 sep 15.0 mag 8.36,10.63 Sp F6Ib+F8 dist. 88.65 pc (289.18 l.y.)
 
 
Coord 2000 17509-3342 Discov num HDO 280 Comp AC Coord arcsec 2000 17 50 52.34 -33 42 20.4
Date first 1897 Date last 2015 Obs 14
Pa first 215 Pa last 218.6 P.A. Now (θ) 218.6°
Sep first 15.0 Sep last 14.958 Sep. Now (ρ) 14.958"
Mag pri 8.36 Mag sec 10.63 delta mag (ΔM) 2.27 Spectral class F6Ib+F8 (yellow-white/yellow-white)
Pri motion ra -001 Sec motion ra -006
Pri motion dec -002 Sec motion dec -024
Notes N U (See Notes, Proper motion indicates non-physical)
rPM=0.912
This double is not physical.
 
 
17509-3342 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show RY Sco 209340 17 50 52 -33 42 20 HDO 280 AB 1964 4 102 2.0 8.36 11.50 3.14
Show 209340 17 50 52 -33 42 20 HDO 280 AC 2015 14 219 15.0 8.36 10.63 2.27 <===
Show 209340 17 50 52 -33 42 20 I 9019 AD 2015 5 198 33.7 8.36 13.60 5.24
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Var name RY Sco Constellation Scorpius SAO 209340 HIP 87345
Tycho2 7381-00346-1 Gaia DR2 4041690364529590144 HD 162102 CD CD-3312533
CP CP-33 4644 Distance 88.65 Distance ly 289.18