20310+4050 CAN 26 AB

 
 
20h 31m 00.20s +40° 49' 49.8" P.A. 270.00 sep 2.6 mag 7.80,15.80 Sp O7V
 
 
Coord 2000 20310+4050 Discov num CAN  26 Comp AB Coord arcsec 2000 20 31 00.20 +40 49 49.8
Date first 2008 Date last 2008 Obs 1
Pa first 270 Pa last 270.4 P.A. Now (θ) 270.4°
Sep first 2.6 Sep last 2.56 Sep. Now (ρ) 2.56"
Mag pri 7.80 Mag sec 15.80 delta mag (ΔM) 8 Spectral class O7V (blue)
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.
 
 
20310+4050 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 31 00 +40 49 50 CAN 26 AB 2008 1 270 2.6 7.80 15.80 8.00 <===
Show 20 31 00 +40 49 50 CAN 26 AC 2014 4 335 8.3 7.80 12.60 4.80
Show 20 31 00 +40 49 50 CAN 26 AD 2008 1 93 8.4 7.80 15.00 7.20
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus