20178+5717 KR 50 CD

 
 
20h 17m 54.08s +57 17' 36.3" P.A. 355.00 sep 1.7 mag 11.54,12.50
 
 
Coord 2000 20178+5717 Discov num KR   50 Comp CD Coord arcsec 2000 20 17 54.08 +57 17 36.3
Date first 1909 Date last 2016 Obs 3
Pa first 102 Pa last 354.9 P.A. Now (θ) 354.9°
Sep first 3.4 Sep last 1.656 Sep. Now (ρ) 1.656"
Mag pri 11.54 Mag sec 12.50 delta mag (ΔM) 0.96 Spectral class
Pri motion ra +020 Sec motion ra +018
Pri motion dec +016 Sec motion dec +018
Notes T (Parallax indicates physical)
rPM=0.11 (< 0.3, Physical double)
This double is physical.
 
 
20178+5717 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 193511 20 17 46 +57 17 16 KR 50 AB 2016 16 129 2.1 8.55 9.99 1.44
Show 20 17 46 +57 17 16 KR 50 AC 2015 7 73 66.6 8.55 11.54 2.99
Show 20 17 54 +57 17 36 KR 50 CD 2016 3 355 1.7 11.54 12.50 0.96 <===
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3945-00178-1 Gaia DR2 2187950181328033280