02471+3744 A 1821 AB

 
 
02h 47m 08.57s +37° 43' 44.7" P.A. 166.00 sep 5.3 mag 8.53,14.70 Sp B9 dist. 549.45 pc (1792.31 l.y.)
 
 
Coord 2000 02471+3744 Discov num A  1821 Comp AB Coord arcsec 2000 02 47 08.57 +37 43 44.7
Date first 1908 Date last 2016 Obs 5
Pa first 164 Pa last 165.6 P.A. Now (θ) 165.6°
Sep first 5.0 Sep last 5.27 Sep. Now (ρ) 5.27"
Mag pri 8.53 Mag sec 14.70 delta mag (ΔM) 6.17 Spectral class B9 (blue-white)
Pri motion ra +000 Sec motion ra
Pri motion dec -002 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 ADS 2116 BD BD+37 632
Distance 549.45 Distance ly 1792.31