20587+3942 BKO 477

 
 
20h 58m 39.08s +39° 41' 24.2" P.A. 8.00 sep 7.6 mag 13.60,13.80
 
 
Coord 2000 20587+3942 Discov num BKO 477 Comp Coord arcsec 2000 20 58 39.08 +39 41 24.2
Date first 1998 Date last 2015 Obs 7
Pa first 9 Pa last 8.3 P.A. Now (θ) 8.3°
Sep first 7.9 Sep last 7.57 Sep. Now (ρ) 7.57"
Mag pri 13.60 Mag sec 13.80 delta mag (ΔM) 0.2 Spectral class
Pri motion ra +008 Sec motion ra -008
Pri motion dec +003 Sec motion dec -024
Notes
rPM=1.241
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Gaia DR2 1873038059595346048