02309+5311 HJ 2139 AC

 
 
02h 30m 52.93s +53° 10' 19.0" P.A. 8.00 sep 18.2 mag 8.85,12.40 Sp F5
 
 
Coord 2000 02309+5311 Discov num HJ 2139 Comp AC Coord arcsec 2000 02 30 52.93 +53 10 19.0
Date first 1900 Date last 2018 Obs 14
Pa first 7 Pa last 7.9 P.A. Now (θ) 7.9°
Sep first 20.4 Sep last 18.2 Sep. Now (ρ) 18.2"
Mag pri 8.85 Mag sec 12.40 delta mag (ΔM) 3.55 Spectral class F5 (yellow-white)
Pri motion ra +016 Sec motion ra +009
Pri motion dec +008 Sec motion dec +002
Notes
rPM=0.515
Nature of this double is uncertain.
 
 
02309+5311 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 15434 02 30 53 +53 10 19 HJ 2139 AB 2020 33 298 3.9 8.85 9.15 0.30
Show 02 30 53 +53 10 19 HJ 2139 AC 2018 14 8 18.2 8.85 12.40 3.55 <===
Show 02 30 53 +53 10 19 HJ 2139 AD 2018 8 203 59.3 8.85 11.93 3.08
Show 02 30 53 +53 10 20 HJ 2139 BC 2016 12 20 17.1 9.15 12.40 3.25
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Perseus Tycho2 3687-00778-1 Gaia DR2 452479791098218880 HD 15434