01180+5355 ES 119 AB (HD 7721)

 
 
01h 18m 01.41s +53° 55' 00.7" P.A. 116.00 sep 5.0 mag 8.22,11.02 Sp A2 dist. 210.97 pc (688.18 l.y.)
 
 
Coord 2000 01180+5355 Discov num ES  119 Comp AB Coord arcsec 2000 01 18 01.41 +53 55 00.7
Date first 1902 Date last 2018 Obs 16
Pa first 115 Pa last 115.7 P.A. Now (θ) 115.7°
Sep first 5.1 Sep last 4.97 Sep. Now (ρ) 4.97"
Mag pri 8.22 Mag sec 11.02 delta mag (ΔM) 2.8 Spectral class A2 (white)
Pri motion ra +025 Sec motion ra +027
Pri motion dec -012 Sec motion dec -013
Notes
rPM=0.075 (< 0.3, Physical double)
This double is physical.
 
 
01180+5355 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 7721 22161 01 18 01 +53 55 01 ES 119 AB 2018 16 116 5.0 8.22 11.02 2.80 <===
Show 22161 01 18 01 +53 55 01 ES 119 AC 2015 12 277 44.4 8.22 10.78 2.56
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 7721 Constellation Cassiopeia SAO 22161 HIP 6080
Tycho2 3669-00764-1 Gaia DR2 410320014159605376 HD 7721 BD BD+53 271
Distance 210.97 Distance ly 688.18