21151+4227 COU 2228

 
 
21h 15m 08.30s +42° 27' 03.2" P.A. 28.00 sep 0.5 mag 11.00,12.60
 
 
Coord 2000 21151+4227 Discov num COU2228 Comp Coord arcsec 2000 21 15 08.30 +42 27 03.2
Date first 1984 Date last 2014 Obs 4
Pa first 29 Pa last 27.8 P.A. Now (θ) 27.8°
Sep first 0.5 Sep last 0.458 Sep. Now (ρ) 0.458"
Mag pri 11.00 Mag sec 12.60 delta mag (ΔM) 1.6 Spectral class
Pri motion ra -001 Sec motion ra
Pri motion dec -004 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3177-02547-1 Gaia DR2 1969134585578890880