20571+3920 BKO 473

 
 
20h 57m 06.73s +39° 20' 25.6" P.A. 34.00 sep 5.4 mag 13.50,13.50
 
 
Coord 2000 20571+3920 Discov num BKO 473 Comp Coord arcsec 2000 20 57 06.73 +39 20 25.6
Date first 1998 Date last 2015 Obs 8
Pa first 34 Pa last 34 P.A. Now (θ) 34°
Sep first 5.2 Sep last 5.44 Sep. Now (ρ) 5.44"
Mag pri 13.50 Mag sec 13.50 delta mag (ΔM) 0 Spectral class
Pri motion ra -011 Sec motion ra
Pri motion dec -026 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Gaia DR2 1872652062295998976