20556+3911 MLB 784

 
 
20h 55m 37.07s +39° 11' 43.9" P.A. 25.00 sep 4.6 mag 12.30,12.40
 
 
Coord 2000 20556+3911 Discov num MLB 784 Comp Coord arcsec 2000 20 55 37.07 +39 11 43.9
Date first 1932 Date last 2016 Obs 7
Pa first 24 Pa last 24.5 P.A. Now (θ) 24.5°
Sep first 4.4 Sep last 4.63 Sep. Now (ρ) 4.63"
Mag pri 12.30 Mag sec 12.40 delta mag (ΔM) 0.1 Spectral class
Pri motion ra -027 Sec motion ra -008
Pri motion dec -025 Sec motion dec +002
Notes
rPM=0.897
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Gaia DR2 1872830561136481280