21258+3329 GYL 56 (HD 204154)

 
 
21h 25m 47.80s +33° 28' 55.9" P.A. 3.00 sep 16.3 mag 8.33,12.10 Sp B9 dist. 304.88 pc (994.52 l.y.)
 
 
Coord 2000 21258+3329 Discov num GYL  56 Comp Coord arcsec 2000 21 25 47.80 +33 28 55.9
Date first 1934 Date last 2015 Obs 11
Pa first 4 Pa last 2.5 P.A. Now (θ) 2.5°
Sep first 13.1 Sep last 16.34 Sep. Now (ρ) 16.34"
Mag pri 8.33 Mag sec 12.10 delta mag (ΔM) 3.77 Spectral class B9 (blue-white)
Pri motion ra -013 Sec motion ra -012
Pri motion dec -011 Sec motion dec -008
Notes N (See Notes)
rPM=0.186 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 204154 Constellation Cygnus SAO 71326 HIP 105813
Tycho2 2707-00239-1 Gaia DR2 1854309390838340992 HD 204154 BD BD+32 4156
Distance 304.88 Distance ly 994.52