20209+1948 HJ 2954 AB

 
 
20h 20m 50.62s +19 47' 52.1" P.A. 303.00 sep 3.1 mag 10.47,10.54 Sp A3
 
 
Coord 2000 20209+1948 Discov num HJ 2954 Comp AB Coord arcsec 2000 20 20 50.62 +19 47 52.1
Date first 1831 Date last 2018 Obs 12
Pa first 300 Pa last 302.6 P.A. Now (θ) 302.6°
Sep first 1.5 Sep last 3.075 Sep. Now (ρ) 3.075"
Mag pri 10.47 Mag sec 10.54 delta mag (ΔM) 0.07 Spectral class A3 (white)
Pri motion ra +003 Sec motion ra -062
Pri motion dec -012 Sec motion dec +034
Notes
rPM=1.126
This double is not physical.
 
 
20209+1948 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 20 51 +19 47 52 HJ 2954 AB 2018 12 303 3.1 10.47 10.54 0.07 <===
Show 20 20 51 +19 47 54 HJ 2954 BC 2015 5 292 23.1 10.54 13.00 2.46
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Sagitta Tycho2 1639-02174-2 Gaia DR2 1816513468172444672