21448+4931 ARG 43 AB (HD 207020)

 
 
21h 44m 45.10s +49° 30' 46.4" P.A. 20.00 sep 29.2 mag 8.63,9.01 Sp A0 dist. 355.87 pc (1160.85 l.y.)
 
 
Coord 2000 21448+4931 Discov num ARG  43 Comp AB Coord arcsec 2000 21 44 45.10 +49 30 46.4
Date first 1894 Date last 2018 Obs 21
Pa first 16 Pa last 19.7 P.A. Now (θ) 19.7°
Sep first 27.2 Sep last 29.202 Sep. Now (ρ) 29.202"
Mag pri 8.63 Mag sec 9.01 delta mag (ΔM) 0.38 Spectral class A0 (white)
Pri motion ra -014 Sec motion ra +010
Pri motion dec -008 Sec motion dec +003
Notes
rPM=1.637
This double is not physical.
 
 
21448+4931 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 207020 51250 21 44 45 +49 30 46 ARG 43 AB 2018 21 20 29.2 8.63 9.01 0.38 <===
Show 21 44 46 +49 31 14 ARG 43 BC 2018 10 91 6.9 9.01 14.00 4.99
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 207020 Constellation Cygnus SAO 51250 HIP 107363
Tycho2 3599-00747-1 Gaia DR2 1978950132046594432 HD 207020 BD BD+48 3491
Distance 355.87 Distance ly 1160.85