21265+5245 BU 369 AD

 
 
21h 26m 29.08s +52° 44' 52.7" P.A. 331.00 sep 25.8 mag 7.59,15.10 Sp B9.5V dist. 198.81 pc (648.52 l.y.)
 
 
Coord 2000 21265+5245 Discov num BU  369 Comp AD Coord arcsec 2000 21 26 29.08 +52 44 52.7
Date first 1998 Date last 2015 Obs 6
Pa first 331 Pa last 330.6 P.A. Now (θ) 330.6°
Sep first 25.7 Sep last 25.833 Sep. Now (ρ) 25.833"
Mag pri 7.59 Mag sec 15.10 delta mag (ΔM) 7.51 Spectral class B9.5V (blue-white)
Pri motion ra +011 Sec motion ra -011
Pri motion dec -005 Sec motion dec -010
Notes N (See Notes)
rPM=1.518
This double is not physical.
 
 
21265+5245 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 204401 33431 21 26 29 +52 44 53 BU 369 AB 2015 14 31 16.0 7.59 11.80 4.21
Show 33431 21 26 29 +52 44 53 BU 369 AC 2014 8 61 49.3 7.59 12.42 4.83
Show 33431 21 26 29 +52 44 53 BU 369 AD 2015 6 331 25.8 7.59 15.10 7.51 <===
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus SAO 33431 HIP 105867 Tycho2 3966-00268-1
Gaia DR2 2172760634351847936 HD 204401 BD BD+52 2938 Distance 198.81
Distance ly 648.52