20231+4047 J 787 AC

 
 
20h 23m 07.30s +40 46' 55.2" P.A. 112.00 sep 9.5 mag 10.50,13.00 Sp B3
 
 
Coord 2000 20231+4047 Discov num J   787 Comp AC Coord arcsec 2000 20 23 07.30 +40 46 55.2
Date first 1917 Date last 2015 Obs 5
Pa first 107 Pa last 111.7 P.A. Now (θ) 111.7°
Sep first 9.0 Sep last 9.508 Sep. Now (ρ) 9.508"
Mag pri 10.50 Mag sec 13.00 delta mag (ΔM) 2.5 Spectral class B3 (blue-white)
Pri motion ra -006 Sec motion ra +008
Pri motion dec -002 Sec motion dec -011
Notes N (See Notes)
rPM=1.224
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