21306+4852 OSO 148 AD

 
 
21h 30m 37.29s +48° 51' 59.6" P.A. 346.00 sep 18.6 mag 10.67,12.25 Sp sd?G2
 
 
Coord 2000 21306+4852 Discov num OSO 148 Comp AD Coord arcsec 2000 21 30 37.29 +48 51 59.6
Date first 1952 Date last 2014 Obs 8
Pa first 322 Pa last 346.2 P.A. Now (θ) 346.2°
Sep first 27.1 Sep last 18.585 Sep. Now (ρ) 18.585"
Mag pri 10.67 Mag sec 12.25 delta mag (ΔM) 1.58 Spectral class sd?G2
Pri motion ra -199 Sec motion ra -002
Pri motion dec +053 Sec motion dec -004
Notes N (See Notes)
rPM=0.996
This double is not physical.
 
 
21306+4852 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 21 30 37 +48 51 60 OSO 148 AB 2003 4 170 16.1 10.67 16.16 5.49
Show 21 30 37 +48 51 60 OSO 148 AC 2014 7 119 23.8 10.67 16.00 5.33
Show 21 30 37 +48 51 60 OSO 148 AD 2014 8 346 18.6 10.67 12.25 1.58 <===
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3598-00653-1 Gaia DR2 1978718611820256256