21023+4139 ROE 21

 
 
21h 02m 24.72s +41° 39' 04.3" P.A. 224.00 sep 9.1 mag 11.29,12.00
 
 
Coord 2000 21023+4139 Discov num ROE  21 Comp Coord arcsec 2000 21 02 24.72 +41 39 04.3
Date first 1892 Date last 2018 Obs 12
Pa first 223 Pa last 223.8 P.A. Now (θ) 223.8°
Sep first 9.2 Sep last 9.082 Sep. Now (ρ) 9.082"
Mag pri 11.29 Mag sec 12.00 delta mag (ΔM) 0.71 Spectral class
Pri motion ra -001 Sec motion ra -003
Pri motion dec -003 Sec motion dec -004
Notes
rPM=0.447
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3176-01604-1 Gaia DR2 1969513156875847552