20549+3933 BKO 471

 
 
20h 54m 54.50s +39° 32' 32.6" P.A. 171.00 sep 5.5 mag 12.00,12.60
 
 
Coord 2000 20549+3933 Discov num BKO 471 Comp Coord arcsec 2000 20 54 54.50 +39 32 32.6
Date first 1998 Date last 2015 Obs 9
Pa first 171 Pa last 171.1 P.A. Now (θ) 171.1°
Sep first 5.5 Sep last 5.537 Sep. Now (ρ) 5.537"
Mag pri 12.00 Mag sec 12.60 delta mag (ΔM) 0.6 Spectral class
Pri motion ra -010 Sec motion ra -006
Pri motion dec -019 Sec motion dec -040
Notes
rPM=0.529
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3171-00244-1 Gaia DR2 1872854333771667584