17122+2137 WFC 189

 
 
17h 12m 11.20s +21° 36' 39.2" P.A. 302.00 sep 6.6 mag 10.03,10.64
 
 
Coord 2000 17122+2137 Discov num WFC 189 Comp Coord arcsec 2000 17 12 11.20 +21 36 39.2
Date first 1894 Date last 2019 Obs 18
Pa first 302 Pa last 301.9 P.A. Now (θ) 301.9°
Sep first 6.8 Sep last 6.59 Sep. Now (ρ) 6.59"
Mag pri 10.03 Mag sec 10.64 delta mag (ΔM) 0.61 Spectral class
Pri motion ra +004 Sec motion ra +004
Pri motion dec +005 Sec motion dec +005
Notes V (Proper motion indicates physical)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Hercules Tycho2 1548-00092-1 Gaia DR2 4567923776314936704