02318+8916 STF 93 BC

 
 
02h 30m 43.45s +89° 15' 38.6" P.A. 83.00 sep 53.1 mag 8.60,13.80
 
 
Coord 2000 02318+8916 Discov num STF  93 Comp BC Coord arcsec 2000 02 30 43.45 +89 15 38.6
Date first 2005 Date last 2015 Obs 4
Pa first 81 Pa last 83.2 P.A. Now (θ) 83.2°
Sep first 53.0 Sep last 53.087 Sep. Now (ρ) 53.087"
Mag pri 8.60 Mag sec 13.80 delta mag (ΔM) 5.2 Spectral class
Pri motion ra +042 Sec motion ra
Pri motion dec -014 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
02318+8916 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 308 02 31 49 +89 15 51 WRH 39 Aa,Ab 2023 14 293 0.1 2.30 4.30 2.00 Y
Show Polaris 308 02 31 49 +89 15 51 STF 93 AB 2016 65 236 18.4 2.04 9.10 7.06
Show 308 02 31 49 +89 15 51 STF 93 AC 2016 7 103 39.0 2.04 13.80 11.76
Show 308 02 31 49 +89 15 51 STF 93 AD 2016 8 194 83.2 2.04 14.30 12.26
Show 02 30 43 +89 15 39 STF 93 BC 2015 4 83 53.1 8.60 13.80 5.20 <===
Show 02 30 43 +89 15 39 STF 93 BD 2016 4 179 69.3 8.60 13.90 5.30
Quintuple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Ursa Minor SAO 305 Gaia DR2 576402619921510144