20307+4137 CAN 28 AH
20h 30m 39.82s +41° 36' 50.7" P.A. 284.00 sep 9.2 mag 8.30,15.40 Sp O6V
Coord 2000
20307+4137
Discov num
CAN 28
Comp
AH
Coord arcsec 2000
20 30 39.82 +41 36 50.7
Date first
2008
Date last
2008
Obs
2
Pa first
284
Pa last
284
P.A. Now (θ)
284°
Sep first
9.2
Sep last
9.23
Sep. Now (ρ)
9.23"
Mag pri
8.30
Mag sec
15.40
delta mag (ΔM)
7.1
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
WDS 20307+4137 CAN 28 AH : NOTES
discov_num
notes
refcode
CAN 1
[MT91] 5. Primary is an O6 star in the Cygnus OB2 Association.
Caballero-Nieves et al. (2014) find some suggestion that the primary
may itself have a close companion.
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
20307+4137
CAN 28
AH
2008
2
284
9.2
8.30
15.40
O6V
N K
203039.82+413650.7
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WDS 20307+4137 CAN 28 AH : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 20307+4137 CAN 28 AH : MEASURES
No records found.
WDS 20307+4137 : VIRTUAL EYEPIECE
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Pass over with the mouse cursor to display the catalog designation.
WDS 20307+4137 : 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.