20353+4251 A 397 AB,C

 
 
20h 35m 16.62s +42° 50' 47.3" P.A. 302.00 sep 53.7 mag 9.65,8.81 Sp F8+F8
 
 
Coord 2000 20353+4251 Discov num A   397 Comp AB,C Coord arcsec 2000 20 35 16.62 +42 50 47.3
Date first 1892 Date last 2018 Obs 8
Pa first 302 Pa last 302.3 P.A. Now (θ) 302.3°
Sep first 53.9 Sep last 53.71 Sep. Now (ρ) 53.71"
Mag pri 9.65 Mag sec 8.81 delta mag (ΔM) 0.84 Spectral class F8+F8 (yellow-white/yellow-white)
Pri motion ra -027 Sec motion ra -025
Pri motion dec -002 Sec motion dec -004
Notes T (Parallax indicates physical)
rPM=0.104 (< 0.3, Physical double)
This double is physical.
 
 
20353+4251 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 35 17 +42 50 47 A 397 AB 2016 10 182 1.3 9.65 12.50 2.85
Show 20 35 17 +42 50 47 A 397 AB,C 2018 8 302 53.7 9.65 8.81 0.84 <===
Triple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3161-00061-1 Gaia DR2 2069506936193183872