20501+4635 ES 671

 
 
20h 50m 07.77s +46° 34' 52.1" P.A. 91.00 sep 1.6 mag 10.75,12.81 Sp B
 
 
Coord 2000 20501+4635 Discov num ES  671 Comp Coord arcsec 2000 20 50 07.77 +46 34 52.1
Date first 1908 Date last 2016 Obs 8
Pa first 93 Pa last 91.4 P.A. Now (θ) 91.4°
Sep first 1.8 Sep last 1.621 Sep. Now (ρ) 1.621"
Mag pri 10.75 Mag sec 12.81 delta mag (ΔM) 2.06 Spectral class B (blue-white)
Pri motion ra -006 Sec motion ra -006
Pri motion dec +013 Sec motion dec +013
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3575-02713-1 Gaia DR2 2166455038263462912