20231+4047 J 787 AD

 
 
20h 23m 07.30s +40 46' 55.2" P.A. 293.00 sep 15.8 mag 10.50,12.40 Sp B3
 
 
Coord 2000 20231+4047 Discov num J   787 Comp AD Coord arcsec 2000 20 23 07.30 +40 46 55.2
Date first 1917 Date last 2015 Obs 5
Pa first 291 Pa last 292.7 P.A. Now (θ) 292.7°
Sep first 15.7 Sep last 15.772 Sep. Now (ρ) 15.772"
Mag pri 10.50 Mag sec 12.40 delta mag (ΔM) 1.9 Spectral class B3 (blue-white)
Pri motion ra -006 Sec motion ra +001
Pri motion dec -002 Sec motion dec -007
Notes N (See Notes)
rPM=1.217
This double is not physical.
 
 
20231+4047 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 23 07 +40 46 55 J 787 AB 2003 4 165 2.6 10.50 11.40 0.90
Show 20 23 07 +40 46 55 J 787 AC 2015 5 112 9.5 10.50 13.00 2.50
Show 20 23 07 +40 46 55 J 787 AD 2015 5 293 15.8 10.50 12.40 1.90 <===
Show 20 23 08 +40 46 52 J 787 CD 2015 9 292 25.3 13.00 12.40 0.60
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Gaia DR2 2067570459999953024