21031+2929 OSO 139 AB

 
 
21h 03m 06.12s +29° 28' 56.2" P.A. 82.00 sep 15.8 mag 10.19,18.00 dist. 129.87 pc (423.64 l.y.)
 
 
Coord 2000 21031+2929 Discov num OSO 139 Comp AB Coord arcsec 2000 21 03 06.12 +29 28 56.2
Date first 1994 Date last 1998 Obs 3
Pa first 85 Pa last 81.6 P.A. Now (θ) 81.6°
Sep first 14.8 Sep last 15.83 Sep. Now (ρ) 15.83"
Mag pri 10.19 Mag sec 18.00 delta mag (ΔM) 7.81 Spectral class
Pri motion ra -261 Sec motion ra
Pri motion dec -169 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
21031+2929 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 21 03 06 +29 28 56 OSO 139 AB 1998 3 82 15.8 10.19 18.00 7.81 <===
Show 21 03 06 +29 28 56 OSO 139 AC 1998 3 308 18.8 10.19 16.50 6.31
Show 21 03 06 +29 28 56 OSO 139 AD 2002 4 110 26.3 10.15 14.08 3.93
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Spectr G0 Constellation Cygnus HIP 103897 Tycho2 2184-00559-1
Gaia DR2 1852390296368162816 HD 335471 BD BD+28 3971 Distance 129.87
Distance ly 423.64