02471+3744 A 1821 AC

 
 
02h 47m 08.57s +37° 43' 44.7" P.A. 44.00 sep 10.6 mag 8.53,13.20 Sp B9 dist. 549.45 pc (1792.31 l.y.)
 
 
Coord 2000 02471+3744 Discov num A  1821 Comp AC Coord arcsec 2000 02 47 08.57 +37 43 44.7
Date first 1908 Date last 2014 Obs 8
Pa first 41 Pa last 44.3 P.A. Now (θ) 44.3°
Sep first 10.5 Sep last 10.588 Sep. Now (ρ) 10.588"
Mag pri 8.53 Mag sec 13.20 delta mag (ΔM) 4.67 Spectral class B9 (blue-white)
Pri motion ra -004 Sec motion ra
Pri motion dec -001 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
02471+3744 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 55874 02 47 09 +37 43 45 A 1821 AB 2016 5 166 5.3 8.53 14.70 6.17
Show 55874 02 47 09 +37 43 45 A 1821 AC 2014 8 44 10.6 8.53 13.20 4.67 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Perseus SAO 55874 HIP 13001 Tycho2 2845-02131-1
Gaia DR2 141798280855030144 HD 17239 BD BD+37 632 Distance 549.45
Distance ly 1792.31