20515+3104 NSN 737 AB

 
 
20h 51m 28.89s +31° 04' 22.4" P.A. 134.00 sep 1.4 mag 12.70,13.42
 
 
Coord 2000 20515+3104 Discov num NSN 737 Comp AB Coord arcsec 2000 20 51 28.89 +31 04 22.4
Date first 2013 Date last 2017 Obs 5
Pa first 123 Pa last 134.4 P.A. Now (θ) 134.4°
Sep first 1.3 Sep last 1.4 Sep. Now (ρ) 1.4"
Mag pri 12.70 Mag sec 13.42 delta mag (ΔM) 0.72 Spectral class
Pri motion ra +055 Sec motion ra +052
Pri motion dec -212 Sec motion dec -222
Notes T (Parallax indicates physical)
rPM=0.046 (< 0.3, Physical double)
This double is physical.
 
 
20515+3104 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 51 29 +31 04 22 NSN 737 AB 2017 5 134 1.4 12.70 13.42 0.72 <===
Show 20 51 29 +31 04 22 RAO 676 AC 2017 1 22 4.5 12.10 16.20 4.10
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus