20517+4721 TDT 2584

 
 
20h 51m 44.10s +47° 21' 24.5" P.A. 177.00 sep 2.4 mag 10.51,12.10
 
 
Coord 2000 20517+4721 Discov num TDT2584 Comp Coord arcsec 2000 20 51 44.10 +47 21 24.5
Date first 1991 Date last 2015 Obs 2
Pa first 177 Pa last 176.9 P.A. Now (θ) 176.9°
Sep first 2.3 Sep last 2.376 Sep. Now (ρ) 2.376"
Mag pri 10.51 Mag sec 12.10 delta mag (ΔM) 1.59 Spectral class
Pri motion ra +002 Sec motion ra +002
Pri motion dec +007 Sec motion dec +007
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3579-03693-1 Gaia DR2 2166885424028949760