20388+5447 STI 2550

 
 
20h 38m 45.58s +54° 47' 54.8" P.A. 183.00 sep 12.4 mag 11.38,13.20
 
 
Coord 2000 20388+5447 Discov num STI2550 Comp Coord arcsec 2000 20 38 45.58 +54 47 54.8
Date first 1905 Date last 2015 Obs 9
Pa first 183 Pa last 182.8 P.A. Now (θ) 182.8°
Sep first 11.9 Sep last 12.38 Sep. Now (ρ) 12.38"
Mag pri 11.38 Mag sec 13.20 delta mag (ΔM) 1.82 Spectral class
Pri motion ra -004 Sec motion ra -005
Pri motion dec -006 Sec motion dec -009
Notes
rPM=0.307
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3954-01056-1 Gaia DR2 2183578694900392448