02050+6423 BU 873 AB (HD 12509)

02h 05m 01.46s +64° 23' 08.2" P.A. 25.00 sep 2.2 mag 7.18,10.72 Sp B1III dist. 4761.9 pc (15533.32 l.y.)

Coord 2000 02050+6423 Discov num BU  873 Comp AB Coord arcsec 2000 02 05 01.46 +64 23 08.2
Date first 1880 Date last 1991 Obs 11
Pa first 29 Pa last 25.1 P.A. Now (θ) 25.1°
Sep first 2.0 Sep last 2.16 Sep. Now (ρ) 2.16"
Mag pri 7.18 Mag sec 10.72 delta mag (ΔM) 3.54 Spectral class B1III (blue-white)
Pri motion ra +000 Sec motion ra -001
Pri motion dec -006 Sec motion dec -002
Notes




rPM=0.687

Nature of this double is uncertain.



02050+6423 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 12509 12110 02 05 01 +64 23 08 BU 873 AB 1991 11 25 2.2 7.18 10.72 3.54 <===
Show 12110 02 05 01 +64 23 08 BU 873 AC 2015 7 145 87.5 7.18 12.17 4.99


Triple system
3 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Name HD 12509 Constellation Cassiopeia SAO 12110 HIP 9720
Tycho2 4041-01744-1 Gaia DR2 515060522622174080 HD 12509 GC 2489
BD BD+63 281 Distance 4761.9 Distance ly 15533.32