20399+3154 TDT 2456

 
 
20h 39m 53.07s +31° 54' 12.4" P.A. 18.00 sep 0.7 mag 11.95,12.18
 
 
Coord 2000 20399+3154 Discov num TDT2456 Comp Coord arcsec 2000 20 39 53.07 +31 54 12.4
Date first 1991 Date last 1991 Obs 1
Pa first 18 Pa last 17.7 P.A. Now (θ) 17.7°
Sep first 0.7 Sep last 0.68 Sep. Now (ρ) 0.68"
Mag pri 11.95 Mag sec 12.18 delta mag (ΔM) 0.23 Spectral class
Pri motion ra +019 Sec motion ra +019
Pri motion dec +018 Sec motion dec +018
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 2690-00391-1 Gaia DR2 1862516764108495872