20178+5717 KR 50 AC

 
 
20h 17m 46.12s +57 17' 16.4" P.A. 73.00 sep 66.6 mag 8.55,11.54 Sp K0
 
 
Coord 2000 20178+5717 Discov num KR   50 Comp AC Coord arcsec 2000 20 17 46.12 +57 17 16.4
Date first 1898 Date last 2015 Obs 7
Pa first 73 Pa last 73.2 P.A. Now (θ) 73.2°
Sep first 75.0 Sep last 66.57 Sep. Now (ρ) 66.57"
Mag pri 8.55 Mag sec 11.54 delta mag (ΔM) 2.99 Spectral class K0 (yellow-orange)
Pri motion ra +079 Sec motion ra +019
Pri motion dec +054 Sec motion dec +019
Notes
rPM=0.726
Nature of this double is uncertain.
 
 
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 3945-00886-1 Gaia DR2 2187944477607218944 HD 193511