21493+3937 SEI 1536

 
 
21h 49m 18.35s +39° 37' 00.1" P.A. 147.00 sep 28.1 mag 10.04,11.80 Sp A2
 
 
Coord 2000 21493+3937 Discov num SEI1536 Comp Coord arcsec 2000 21 49 18.35 +39 37 00.1
Date first 1895 Date last 2016 Obs 11
Pa first 154 Pa last 146.5 P.A. Now (θ) 146.5°
Sep first 27.5 Sep last 28.122 Sep. Now (ρ) 28.122"
Mag pri 10.04 Mag sec 11.80 delta mag (ΔM) 1.76 Spectral class A2 (white)
Pri motion ra -010 Sec motion ra +016
Pri motion dec -012 Sec motion dec -003
Notes
rPM=1.69
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3188-00660-1 Gaia DR2 1953394251992756480