20306+1932 UC 251

 
 
20h 30m 36.61s +19 31' 44.1" P.A. 38.00 sep 39.9 mag 11.30,12.70
 
 
Coord 2000 20306+1932 Discov num UC  251 Comp Coord arcsec 2000 20 30 36.61 +19 31 44.1
Date first 2000 Date last 2015 Obs 9
Pa first 38 Pa last 37.6 P.A. Now (θ) 37.6°
Sep first 39.9 Sep last 39.892 Sep. Now (ρ) 39.892"
Mag pri 11.30 Mag sec 12.70 delta mag (ΔM) 1.4 Spectral class
Pri motion ra -050 Sec motion ra -052
Pri motion dec -017 Sec motion dec -013
Notes V (Proper motion indicates physical)
rPM=0.083 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Delphinus Tycho2 1640-02020-1 Gaia DR2 1815857265891526528