21161+4444 MCN 2

 
 
21h 16m 06.80s +44° 44' 07.2" P.A. 303.00 sep 16.0 mag 12.70,13.50 Sp M2.5V+M0V
 
 
Coord 2000 21161+4444 Discov num MCN   2 Comp Coord arcsec 2000 21 16 06.80 +44 44 07.2
Date first 1954 Date last 2010 Obs 6
Pa first 309 Pa last 303.1 P.A. Now (θ) 303.1°
Sep first 16.8 Sep last 16 Sep. Now (ρ) 16"
Mag pri 12.70 Mag sec 13.50 delta mag (ΔM) 0.8 Spectral class M2.5V+M0V (red/red)
Pri motion ra -009 Sec motion ra -009
Pri motion dec +000 Sec motion dec -002
Notes V (Proper motion indicates physical)
rPM=0.217 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus