20453+1715 GWP 2993

20h 45m 20.72s +17° 15' 16.7" P.A. 104.00 sep 11.1 mag 11.40,16.80

Coord 2000 20453+1715 Discov num GWP2993 Comp Coord arcsec 2000 20 45 20.72 +17 15 16.7
Date first 1990 Date last 2018 Obs 7
Pa first 103 Pa last 104.4 P.A. Now (θ) 104.4°
Sep first 10.2 Sep last 11.05 Sep. Now (ρ) 11.05"
Mag pri 11.40 Mag sec 16.80 delta mag (ΔM) 5.4 Spectral class
Pri motion ra +064 Sec motion ra +066
Pri motion dec -024 Sec motion dec -024
Notes V R (Proper motion indicates physical, Red magnitudes)




rPM=0.028 (< 0.3, Physical double)

This double is physical.



OTHER CATALOGS AND DESIGNATIONS

Constellation Delphinus Gaia DR2 1811277254499534976