21166+4448 ES 97

 
 
21h 16m 32.74s +44° 48' 36.6" P.A. 290.00 sep 7.5 mag 9.98,10.90
 
 
Coord 2000 21166+4448 Discov num ES   97 Comp Coord arcsec 2000 21 16 32.74 +44 48 36.6
Date first 1893 Date last 2018 Obs 15
Pa first 291 Pa last 290 P.A. Now (θ) 290°
Sep first 7.8 Sep last 7.491 Sep. Now (ρ) 7.491"
Mag pri 9.98 Mag sec 10.90 delta mag (ΔM) 0.92 Spectral class
Pri motion ra +013 Sec motion ra +009
Pri motion dec +010 Sec motion dec +011
Notes
rPM=0.251 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3181-00293-1 Gaia DR2 1971771072722251136