21238+4710 A 765 AB,C

 
 
21h 23m 50.18s +47° 09' 52.4" P.A. 22.00 sep 26.4 mag 7.12,14.00 Sp B0V
 
 
Coord 2000 21238+4710 Discov num A   765 Comp AB,C Coord arcsec 2000 21 23 50.18 +47 09 52.4
Date first 1904 Date last 2003 Obs 5
Pa first 25 Pa last 22.1 P.A. Now (θ) 22.1°
Sep first 25.7 Sep last 26.37 Sep. Now (ρ) 26.37"
Mag pri 7.12 Mag sec 14.00 delta mag (ΔM) 6.88 Spectral class B0V (blue-white)
Pri motion ra -003 Sec motion ra
Pri motion dec -005 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
21238+4710 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 203938 50792 21 23 50 +47 09 52 A 765 AB 2016 24 22 0.6 9.02 7.33 1.69
Show 50792 21 23 50 +47 09 52 A 765 AB,C 2003 5 22 26.4 7.12 14.00 6.88 <===
Show 21 23 51 +47 10 17 A 765 CD 2015 9 345 5.9 14.00 14.50 0.50
Quadruple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus SAO 50792 Gaia DR2 1972509777052328064