20340+4118 CAN 68 AC
20h 33m 59.53s +41° 17' 35.5" P.A. 315.00 sep 7.1 mag 7.90,16.80 Sp O9.5V
Coord 2000
20340+4118
Discov num
CAN 68
Comp
AC
Coord arcsec 2000
20 33 59.53 +41 17 35.5
Date first
2008
Date last
2008
Obs
1
Pa first
315
Pa last
315.4
P.A. Now (θ)
315.4°
Sep first
7.1
Sep last
7.06
Sep. Now (ρ)
7.06"
Mag pri
7.90
Mag sec
16.80
delta mag (ΔM)
8.9
Spectral class
O9.5V (blue)
Pri motion ra
+001
Sec motion ra
Pri motion dec
+001
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.
20340+4118 SYSTEM COMPONENTS
Show
name
SAO
coord
wds_name
last
obs
pa
sep
mag1
mag2
d_mag
orb
current
Show
20 33 60 +41 17 36
CAN 10 Aa,Ab
2007
2
226
0.0
12.70
13.60
0.90
Show
20 33 60 +41 17 36
CAN 68 AB
2008
1
48
0.8
7.90
12.70
4.80
Show
20 33 60 +41 17 36
CAN 68 AC
2008
1
315
7.1
7.90
16.80
8.90
<===
Show
20 33 60 +41 17 36
CAN 68 AD
2008
2
285
7.4
7.90
13.40
5.50
Show
20 33 60 +41 17 36
CAN 68 AE
2008
1
311
8.9
7.90
15.80
7.90
Show
20 33 60 +41 17 36
CAN 68 AF
2008
1
235
9.4
7.90
15.80
7.90
Show
20 33 60 +41 17 36
CAN 68 AG
2014
2
232
10.9
7.90
16.30
8.40
Show
20 33 60 +41 17 36
CAN 68 AH
2014
3
31
11.0
7.90
13.90
6.00
Ninefold system
8 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
WDS 20340+4118 CAN 68 AC : NOTES
discov_num
notes
refcode
CAN 10
[MT91] 696. Primary is an O9.5 eclipsing, double-lined SB in the
Cygnus OB2 Association. Ambiguity in the position of the secondary
along one FGS coordinate leads to two possible position angles for the
measure.
CaN2014
REFERENCES
refcode
metd
author
reference
CaN2014
Hf j
Caballero-Nieves, S.M., Nelan, E.P., Gies, D.R., Wallace, D.J., DeGioia-Eastwood,
2014AJ....147...40C
CaN2014
K., Herrero, A., Jao, W.-J., Mason, B.D., Massey, P., Moffat, A.F., & Walborn, N.
CaN2014
AJ 147, 40, 2014
WDS HISTORIC DATA
coord_2000
discov_num
comp
epoch
obs
pa
sep
mag_pri
mag_sec
spectr
notes
coord_arcsec_2000
20340+4118
CAN 68
AC
2008
1
315
7.1
7.90
16.80
O9.5V
N K
203359.53+411735.5
If you need more information about this double, apply for a
data request form to the WDS.
WDS 20340+4118 CAN 68 AC : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 20340+4118 CAN 68 AC : MEASURES
No records found.
WDS 20340+4118 : VIRTUAL EYEPIECE
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Pass over with the mouse cursor to display the catalog designation.
WDS 20340+4118 : ALADIN DSS IMAGE @
DSS color
DSS blue
2MASS
AllWISE
GALEX
SDSS9
XMM
PanSTARRS
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.