03302+7718 HU 1057 AB (HD 20945)

 
 
03h 30m 13.71s +77° 17' 35.7" P.A. 105.00 sep 2.9 mag 9.09,10.84 Sp F5
 
 
Coord 2000 03302+7718 Discov num HU 1057 Comp AB Coord arcsec 2000 03 30 13.71 +77 17 35.7
Date first 1904 Date last 2003 Obs 8
Pa first 105 Pa last 105.1 P.A. Now (θ) 105.1°
Sep first 2.9 Sep last 2.898 Sep. Now (ρ) 2.898"
Mag pri 9.09 Mag sec 10.84 delta mag (ΔM) 1.75 Spectral class F5 (yellow-white)
Pri motion ra +007 Sec motion ra +007
Pri motion dec -017 Sec motion dec -016
Notes V (Proper motion indicates physical)
rPM=0.054 (< 0.3, Physical double)
This double is physical.
 
 
03302+7718 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 20945 4911 03 30 14 +77 17 36 HU 1057 AB 2003 8 105 2.9 9.09 10.84 1.75 <===
Show 4911 03 30 14 +77 17 36 FOX 130 AC 2014 7 281 64.4 9.09 11.48 2.39
Show 03 30 14 +77 17 36 FOX 130 BC 2015 2 279 63.0 10.84 11.48 0.64
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 20945 Constellation Cassiopeia SAO 4911 Tycho2 4513-02781-1
Gaia DR2 554357751087192064 HD 20945