02578+4431 STF 328 AB (HD 18281)

 
 
02h 57m 45.98s +44° 31' 26.7" P.A. 306.00 sep 14.7 mag 9.23,9.30 Sp F8 dist. 26.8 pc (87.42 l.y.)
 
 
Coord 2000 02578+4431 Discov num STF 328 Comp AB Coord arcsec 2000 02 57 45.98 +44 31 26.7
Date first 1794 Date last 2017 Obs 55
Pa first 284 Pa last 306 P.A. Now (θ) 306°
Sep first 35.3 Sep last 14.65 Sep. Now (ρ) 14.65"
Mag pri 9.23 Mag sec 9.30 delta mag (ΔM) 0.07 Spectral class F8 (yellow-white)
Pri motion ra +047 Sec motion ra +110
Pri motion dec +005 Sec motion dec -021
Notes N L Z (See Notes, Linear solution, Parallax indicates components are physical)
rPM=0.609
This double is physical.
 
 
02578+4431 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 18281 38468 02 57 46 +44 31 27 STF 328 AB 2017 55 306 14.7 9.23 9.30 0.07 <===
Show 38468 02 57 46 +44 31 27 STF 328 AC 2015 12 96 46.2 9.23 11.82 2.59
Show 38468 02 57 46 +44 31 27 B 9001 AD 2015 7 117 100.0 9.23 13.16 3.93
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 18281 Constellation Perseus SAO 38468 HIP 13802
Tycho2 2858-02674-1 Gaia DR2 433622720000360960 HD 18281 GC 3546
BD BD+43 607 Distance 26.8 Distance ly 87.42