20307+4109 CAN 16

 
 
20h 30m 39.71s +41° 08' 49.0" P.A. 347.00 sep 8.4 mag 6.00,12.20 Sp B0.7
 
 
Coord 2000 20307+4109 Discov num CAN  16 Comp Coord arcsec 2000 20 30 39.71 +41 08 49.0
Date first 2008 Date last 2014 Obs 4
Pa first 346 Pa last 347.3 P.A. Now (θ) 347.3°
Sep first 8.7 Sep last 8.409 Sep. Now (ρ) 8.409"
Mag pri 6.00 Mag sec 12.20 delta mag (ΔM) 6.2 Spectral class B0.7 (blue-white)
Pri motion ra Sec motion ra
Pri motion dec Sec motion dec
Notes V K (Proper motion indicates physical, K-band or other infrared magnitudes)
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3157-00601-1