20307+4137 CAN 28 AO

 
 
20h 30m 39.82s +41° 36' 50.7" P.A. 281.00 sep 13.8 mag 9.10,16.70 Sp O6V
 
 
Coord 2000 20307+4137 Discov num CAN  28 Comp AO Coord arcsec 2000 20 30 39.82 +41 36 50.7
Date first 1998 Date last 2008 Obs 2
Pa first 280 Pa last 281.1 P.A. Now (θ) 281.1°
Sep first 13.8 Sep last 13.77 Sep. Now (ρ) 13.77"
Mag pri 9.10 Mag sec 16.70 delta mag (ΔM) 7.6 Spectral class O6V (blue)
Pri motion ra -003 Sec motion ra
Pri motion dec -002 Sec motion dec
Notes N K (See Notes, 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
Nature of this double is uncertain.
 
 
20307+4137 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 30 40 +41 36 51 CAN 1 Aa,Ab 2008 3 91 0.3 13.00 15.80 2.80
Show 20 30 40 +41 36 51 CAN 28 AB 2008 2 336 2.6 8.30 15.60 7.30
Show 20 30 40 +41 36 51 CAN 28 AC 2008 2 342 6.0 8.30 16.00 7.70
Show 20 30 40 +41 36 51 CAN 28 AD 2008 1 168 7.0 8.30 17.20 8.90
Show 20 30 40 +41 36 51 CAN 28 AE 2008 1 337 7.8 8.30 17.60 9.30
Show 20 30 40 +41 36 51 CAN 28 AF 2008 1 20 8.2 8.30 16.70 8.40
Show 20 30 40 +41 36 51 CAN 28 AG 2008 2 158 9.0 8.30 14.30 6.00
Show 20 30 40 +41 36 51 CAN 28 AH 2008 2 284 9.2 8.30 15.40 7.10
Show 20 30 40 +41 36 51 CAN 28 AI 2008 3 44 10.1 8.30 15.10 6.80
Show 20 30 40 +41 36 51 CAN 28 AJ 2008 1 118 10.1 8.30 15.90 7.60
Show 20 30 40 +41 36 51 CAN 28 AK 2008 2 14 10.2 8.30 15.40 7.10
Show 20 30 40 +41 36 51 CAN 28 AL 2008 1 104 10.3 8.30 17.20 8.90
Show 20 30 40 +41 36 51 CAN 28 AM 2008 1 77 12.0 8.30 16.80 8.50
Show 20 30 40 +41 36 51 CAN 28 AN 2008 2 2 13.4 9.10 15.70 6.60
Show 20 30 40 +41 36 51 CAN 28 AO 2008 2 281 13.8 9.10 16.70 7.60 <===
16-fold system
15 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus