21401+2928 BRT 57

 
 
21h 39m 50.92s +29° 29' 22.1" P.A. 137.00 sep 5.0 mag 10.20,10.30
 
 
Coord 2000 21401+2928 Discov num BRT  57 Comp Coord arcsec 2000 21 39 50.92 +29 29 22.1
Date first 1894 Date last 2016 Obs 19
Pa first 134 Pa last 136.5 P.A. Now (θ) 136.5°
Sep first 4.2 Sep last 5.004 Sep. Now (ρ) 5.004"
Mag pri 10.20 Mag sec 10.30 delta mag (ΔM) 0.1 Spectral class
Pri motion ra -021 Sec motion ra +028
Pri motion dec +046 Sec motion dec -009
Notes
rPM=1.457
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Gaia DR2 1849399212420096768