18353+2145 COU 205 (HD 171681)

 
 
18h 35m 17.64s +21° 44' 36.8" P.A. 148.00 sep 0.1 mag 9.37,10.67 Sp A2 dist. 158.73 pc (517.78 l.y.)
 
 
Coord 2000 18353+2145 Discov num COU 205 Comp Coord arcsec 2000 18 35 17.64 +21 44 36.8
Date first 1967 Date last 2014 Obs 11
Pa first 134 Pa last 147.8 P.A. Now (θ) 147.8°
Sep first 0.3 Sep last 0.132 Sep. Now (ρ) 0.132"
Mag pri 9.37 Mag sec 10.67 delta mag (ΔM) 1.3 Spectral class A2 (white)
Pri motion ra -010 Sec motion ra
Pri motion dec -008 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 171681 Constellation Hercules SAO 86218 HIP 91127
Tycho2 1582-01109-1 Gaia DR2 4532099144867330944 HD 171681 BD BD+21 3488
Distance 158.73 Distance ly 517.78