19559+4912 HU 688 (HD 189065)

 
 
19h 55m 54.46s +49 11' 43.6" P.A. 291.00 sep 3.9 mag 8.07,11.77 Sp B9 dist. 591.72 pc (1930.19 l.y.)
 
 
Coord 2000 19559+4912 Discov num HU  688 Comp Coord arcsec 2000 19 55 54.46 +49 11 43.6
Date first 1904 Date last 2019 Obs 8
Pa first 291 Pa last 290.7 P.A. Now (θ) 290.7°
Sep first 4.1 Sep last 3.9 Sep. Now (ρ) 3.9"
Mag pri 8.07 Mag sec 11.77 delta mag (ΔM) 3.7 Spectral class B9 (blue-white)
Pri motion ra +002 Sec motion ra -004
Pri motion dec -011 Sec motion dec -012
Notes
rPM=0.481
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 189065 Constellation Cygnus SAO 48994 HIP 98072
Tycho2 3566-01514-1 Gaia DR2 2086924269833797888 HD 189065 BD BD+48 2984
Distance 591.72 Distance ly 1930.19