21120+4000 TDT 2817

 
 
21h 11m 57.66s +39° 59' 47.3" P.A. 335.00 sep 0.6 mag 11.34,11.73
 
 
Coord 2000 21120+4000 Discov num TDT2817 Comp Coord arcsec 2000 21 11 57.66 +39 59 47.3
Date first 1991 Date last 1991 Obs 1
Pa first 335 Pa last 335.3 P.A. Now (θ) 335.3°
Sep first 0.6 Sep last 0.64 Sep. Now (ρ) 0.64"
Mag pri 11.34 Mag sec 11.73 delta mag (ΔM) 0.39 Spectral class
Pri motion ra +000 Sec motion ra +000
Pri motion dec +030 Sec motion dec +030
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3173-02198-1 Gaia DR2 1968196049333173760