20391+3717 SEI 1207

 
 
20h 39m 05.25s +37° 16' 58.8" P.A. 121.00 sep 27.0 mag 11.94,12.40
 
 
Coord 2000 20391+3717 Discov num SEI1207 Comp Coord arcsec 2000 20 39 05.25 +37 16 58.8
Date first 1896 Date last 2015 Obs 13
Pa first 124 Pa last 120.5 P.A. Now (θ) 120.5°
Sep first 25.6 Sep last 27.025 Sep. Now (ρ) 27.025"
Mag pri 11.94 Mag sec 12.40 delta mag (ΔM) 0.46 Spectral class
Pri motion ra +007 Sec motion ra +023
Pri motion dec -004 Sec motion dec +001
Notes
rPM=0.728
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 2698-00172-1 Gaia DR2 2062887090225359744