20563+4447 ES 675 AB

 
 
20h 56m 18.01s +44° 46' 47.7" P.A. 272.00 sep 97.4 mag 9.64,11.70 Sp B9.5V
 
 
Coord 2000 20563+4447 Discov num ES  675 Comp AB Coord arcsec 2000 20 56 18.01 +44 46 47.7
Date first 1892 Date last 2016 Obs 10
Pa first 272 Pa last 271.7 P.A. Now (θ) 271.7°
Sep first 98.5 Sep last 97.44 Sep. Now (ρ) 97.44"
Mag pri 9.64 Mag sec 11.70 delta mag (ΔM) 2.06 Spectral class B9.5V (blue-white)
Pri motion ra -006 Sec motion ra -006
Pri motion dec -011 Sec motion dec +001
Notes
rPM=0.958
This double is not physical.
 
 
20563+4447 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 56 18 +44 46 48 ES 675 AB 2016 10 272 97.4 9.64 11.70 2.06 <===
Show 20 56 09 +44 46 51 ES 675 BC 2016 8 108 3.7 10.60 12.00 1.40
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3179-01068-1 Gaia DR2 2163020748046735872 ADS 14455