20205+2353 BKO 645 AD

 
 
20h 20m 32.36s +23° 52' 30.0" P.A. 45.00 sep 11.8 mag 11.92,14.70
 
 
Coord 2000 20205+2353 Discov num BKO 645 Comp AD Coord arcsec 2000 20 20 32.36 +23 52 30.0
Date first 2000 Date last 2015 Obs 8
Pa first 45 Pa last 44.7 P.A. Now (θ) 44.7°
Sep first 11.7 Sep last 11.809 Sep. Now (ρ) 11.809"
Mag pri 11.92 Mag sec 14.70 delta mag (ΔM) 2.78 Spectral class
Pri motion ra -004 Sec motion ra +012
Pri motion dec -004 Sec motion dec +026
Notes
rPM=1.187
This double is not physical.
 
 
20205+2353 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 20 32 +23 52 30 POU 4383 AB 2015 9 122 6.9 11.92 13.20 1.28
Show 20 20 32 +23 52 30 BKO 645 AC 2015 6 229 5.7 11.92 16.00 4.08
Show 20 20 32 +23 52 30 BKO 645 AD 2015 8 45 11.8 11.92 14.70 2.78 <===
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Vulpecula Tycho2 2155-00893-1 Gaia DR2 1831873375044032000