20506+3055 BU 67 AB (HD 198626)

 
 
20h 50m 36.05s +30° 54' 45.7" P.A. 311.00 sep 1.5 mag 6.85,9.87 Sp A8III dist. 120.05 pc (391.6 l.y.)
 
 
Coord 2000 20506+3055 Discov num BU   67 Comp AB Coord arcsec 2000 20 50 36.05 +30 54 45.7
Date first 1871 Date last 2016 Obs 36
Pa first 290 Pa last 310.9 P.A. Now (θ) 310.9°
Sep first 1.3 Sep last 1.533 Sep. Now (ρ) 1.533"
Mag pri 6.85 Mag sec 9.87 delta mag (ΔM) 3.02 Spectral class A8III (white)
Pri motion ra +061 Sec motion ra +058
Pri motion dec +035 Sec motion dec +036
Notes
rPM=0.045 (< 0.3, Physical double)
This double is physical.
 
 
20506+3055 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 70564 20 50 36 +30 54 46 GII 293 Aa,Ab 2013 1 137 0.1 7.60 7.60 0.00
Show HD 198626 70564 20 50 36 +30 54 46 BU 67 AB 2016 36 311 1.5 6.85 9.87 3.02 <===
Triple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 198626 Constellation Cygnus SAO 70564 HIP 102876
Tycho2 2687-01371-1 HD 198626 GC 29071 BD BD+30 4199
Distance 120.05 Distance ly 391.6