21288+6537 OSO 147 AD

 
 
21h 28m 47.32s +65° 37' 09.8" P.A. 119.00 sep 22.3 mag 10.42,18.10 Sp K3
 
 
Coord 2000 21288+6537 Discov num OSO 147 Comp AD Coord arcsec 2000 21 28 47.32 +65 37 09.8
Date first 1994 Date last 2014 Obs 15
Pa first 107 Pa last 119.3 P.A. Now (θ) 119.3°
Sep first 23.2 Sep last 22.322 Sep. Now (ρ) 22.322"
Mag pri 10.42 Mag sec 18.10 delta mag (ΔM) 7.68 Spectral class K3 (yellow-orange)
Pri motion ra +151 Sec motion ra
Pri motion dec +206 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
21288+6537 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 21 28 47 +65 37 10 OSO 147 AB 2015 5 211 23.1 10.42 18.10 7.68
Show 21 28 47 +65 37 10 OSO 147 AC 2015 17 287 24.7 10.42 15.60 5.18
Show 21 28 47 +65 37 10 OSO 147 AD 2014 15 119 22.3 10.42 18.10 7.68 <===
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cepheus Tycho2 4257-01228-1 Gaia DR2 2220926562268236544