20307+4137 CAN  28AB

 
 
20h 30m 39.82s +41 36' 50.7" P.A. 336.00 sep 2.6 mag 8.30,15.60 Sp O6V
 
 
Coord 2000
20307+4137
Discov num
CAN  28
Comp
AB
Coord arcsec 2000
20 30 39.82 +41 36 50.7
Date first
2008
Date last
2008
Obs
2
Pa first
336
Pa last
336
P.A. Now (θ)
336°
Sep first
2.6
Sep last
2.6
Sep. Now (ρ)
2.6"
Mag pri
8.30
Mag sec
15.60
delta mag (ΔM)
7.3
Spectral class
O6V (blue)
Pri motion ra
-003
Sec motion ra
Pri motion dec
-002
Sec motion dec
Notes
N V K (See Notes, Proper motion indicates physical, K-band or other infrared magnitudes)
Visually invisible, K-band or other infrared star This double is physical.
 
 
20307+4137 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20307+4137 CAN 1 Aa,Ab 2006 2008 3 91 0.3 13.00 15.80 2.80
Show 20307+4137 CAN 28 AB 2008 2008 2 336 2.6 8.30 15.60 7.30 <===
Show 20307+4137 CAN 28 AC 2008 2008 2 342 6.0 8.30 16.00 7.70
Show 20307+4137 CAN 28 AD 2008 2008 1 168 7.0 8.30 17.20 8.90
Show 20307+4137 CAN 28 AE 2008 2008 1 337 7.8 8.30 17.60 9.30
Show 20307+4137 CAN 28 AF 2008 2008 1 20 8.2 8.30 16.70 8.40
Show 20307+4137 CAN 28 AG 2008 2008 2 158 9.0 8.30 14.30 6.00
Show 20307+4137 CAN 28 AH 2008 2008 2 284 9.2 8.30 15.40 7.10
Show 20307+4137 CAN 28 AI 1998 2008 3 44 10.1 8.30 15.10 6.80
Show 20307+4137 CAN 28 AJ 2008 2008 1 118 10.1 8.30 15.90 7.60
Show 20307+4137 CAN 28 AK 2008 2008 2 14 10.2 8.30 15.40 7.10
Show 20307+4137 CAN 28 AL 2008 2008 1 104 10.3 8.30 17.20 8.90
Show 20307+4137 CAN 28 AM 2008 2008 1 77 12.0 8.30 16.80 8.50
Show 20307+4137 CAN 28 AN 1998 2008 2 2 13.4 9.10 15.70 6.60
Show 20307+4137 CAN 28 AO 1998 2008 2 281 13.8 9.10 16.70 7.60
16-fold system
15 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
335.6
Precise sep
2.64
Constellation
Cygnus
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20307+4137 CAN 28 AB 2008 2 336 2.6 8.30 15.60 O6V NV K 203039.82+413650.7

If you need more information about this double, apply for a data request form to the WDS.