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Doubles in session


Current system
20340+4118
CAN 68 AE


Nearby doubles
4' : 20338+4120
CAN 66AB

5' : 20344+4117
CAN 76AB

5' : 20337+4119
CAN 62AB

5' : 20336+4116
CAN 61AB

6' : 20335+4115
CAN 60AB

7' : 20337+4123
CAN 8AB

8' : 20334+4118
CAN 55AB

8' : 20333+4117
CAN 79AB

9' : 20333+4119
HJ 1539AB

9' : 20333+4120
CAN 53AB

9' : 20333+4121
CAN 54AB

9' : 20332+4120
MZA 28AB

10' : 20334+4111
CAN 58AB

10' : 20332+4115
MZA 27AB

10' : 20332+4114
CAN 49AB

10' : 20332+4113
CAN 50AB

11' : 20332+4122
CAN 6AB

11' : 20331+4113
WSI 66AB

11' : 20330+4118
CAN 44AB

11' : 20334+4109
WSI 67AB

12' : 20340+4106
CAN 67AB

13' : 20341+4105
CAN 69AB

14' : 20337+4130
CAN 64AB

14' : 20330+4124
CAN 43AB

14' : 20328+4115
CNT 8

15' : 20347+4129
CAN 74AB



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20340+4118 CAN 68 AE

 
 
20h 33m 59.53s +41° 17' 35.5" P.A. 311.00 sep 8.9 mag 7.90,15.80 Sp O9.5V
 
 
Coord 2000 20340+4118 Discov num CAN  68 Comp AE Coord arcsec 2000 20 33 59.53 +41 17 35.5
Date first 2008 Date last 2008 Obs 1
Pa first 311 Pa last 310.8 P.A. Now (θ) 310.8°
Sep first 8.9 Sep last 8.92 Sep. Now (ρ) 8.92"
Mag pri 7.90 Mag sec 15.80 delta mag (ΔM) 7.9 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
 
 
Constellation Cygnus
 
 
WDS 20340+4118 CAN 68 AE : 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 AE 2008 1 311 8.9 7.90 15.80 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 AE : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20340+4118 CAN 68 AE : MEASURES
 
 
No records found.

 
 
WDS 20340+4118 : VIRTUAL EYEPIECE
 
 

20340+4118 CAN 68A mag 7.9 Sp O9.5V 20340+4118 CAN 10Ab mag 13.6 Sp O9 20340+4118 CAN 68B sep 0.7 P.A. 39.30 mag 12.7 20340+4118 CAN 68C sep 6.3 P.A. 323.50 mag 16.8 20340+4118 CAN 68D sep 5.7 P.A. 290.10 mag 13.4 20340+4118 CAN 68E sep 7.7 P.A. 319.00 mag 15.8 20340+4118 CAN 68F sep 7.9 P.A. 227.30 mag 15.8 20340+4118 CAN 68G sep 9.3 P.A. 223.80 mag 16.3 20340+4118 CAN 68H sep 10.4 P.A. 24.30 mag 13.9 virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20340+4118 : ALADIN DSS IMAGE @ 20h 33m 59.53s +41° 17' 35.5"
 
 
 
 
WDS 20340+4118 CAN 68 AE : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20340+4118 CAN 68AE distance=0' 20338+4120 CAN 66AB distance=4' 20338+4120 CAN 66AC distance=4' 20338+4120 CAN 66AD distance=4' 20338+4120 CAN 66AE distance=4' 20344+4117 CAN 76AB distance=5' 20344+4117 CAN 76AC distance=5' 20344+4117 CAN 76AD distance=5' 20344+4117 CAN 76AE distance=5' 20344+4117 CAN 76AF distance=5' 20344+4117 CAN 76AG distance=5' 20344+4117 CAN 76AH distance=5' 20344+4117 CAN 76AI distance=5' 20344+4117 CAN 76AJ distance=5' 20344+4117 CAN 76AK distance=5' 20344+4117 CAN 76AL distance=5' 20344+4117 CAN 76AM distance=5' 20337+4119 CAN 62AB distance=5' 20337+4119 CAN 62AC distance=5' 20337+4119 CAN 62AD distance=5' 20337+4119 CAN 62AE distance=5' 20337+4119 CAN 62AF distance=5' 20337+4119 CAN 62AG distance=5' 20337+4119 CAN 62AH distance=5' 20337+4119 CAN 62AI distance=5' 20337+4119 CAN 62AJ distance=5' 20337+4119 CAN 62AK distance=5' 20337+4119 CAN 62AL distance=5' 20336+4116 CAN 61AB distance=5' 20336+4116 CAN 61AC distance=5' 20336+4116 CAN 61AD distance=5' 20336+4116 CAN 61AE distance=5' 20336+4116 CAN 61AF distance=5' 20336+4116 CAN 61AG distance=5' 20336+4116 CAN 61AH distance=5' 20336+4116 CAN 61AI distance=5' 20336+4116 CAN 61AJ distance=5' 20336+4116 CAN 61AK distance=5' 20335+4115 CAN 60AB distance=6' 20335+4115 CAN 60AC distance=6' 20335+4115 CAN 60AD distance=6' 20335+4115 CAN 60AE distance=6' 20335+4115 CAN 60AF distance=6' 20337+4123 CAN 8AB distance=7' 20337+4123 CAN 63AC distance=7' 20337+4123 CAN 63AD distance=7' 20337+4123 CAN 63AE distance=7' 20337+4123 CAN 63AF distance=7' 20337+4123 CAN 63AG distance=7' 20337+4123 CAN 63AH distance=7' 20337+4123 CAN 63AI distance=7' grafico limitrofi
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(')
Show 20340+4118 CAN 10 Aa,Ab 226 0.0
Show 20340+4118 CAN 68 AB 48 0.8
Show 20340+4118 CAN 68 AC 315 7.1
Show 20340+4118 CAN 68 AD 285 7.4
Show 20340+4118 CAN 68 AE 311 8.9
Show 20340+4118 CAN 68 AF 235 9.4
Show 20340+4118 CAN 68 AG 232 10.9
Show 20340+4118 CAN 68 AH 31 11.0
Show 20338+4120 CAN 66 AB 42 0.3 4
Show 20338+4120 CAN 66 AC 190 1.7 4
Show 20338+4120 CAN 66 AD 200 5.8 4
Show 20338+4120 CAN 66 AE 49 14.6 4
Show 20344+4117 CAN 76 AB 118 0.6 5
Show 20344+4117 CAN 76 AC 65 2.9 5
Show 20344+4117 CAN 76 AD 107 3.3 5
Show 20344+4117 CAN 76 AE 21 4.4 5
Show 20344+4117 CAN 76 AF 50 4.7 5
Show 20344+4117 CAN 76 AG 28 5.5 5
Show 20344+4117 CAN 76 AH 42 6.6 5
Show 20344+4117 CAN 76 AI 185 8.4 5
Show 20344+4117 CAN 76 AJ 285 8.5 5
Show 20344+4117 CAN 76 AK 268 9.0 5
Show 20344+4117 CAN 76 AL 9 11.5 5
Show 20344+4117 CAN 76 AM 167 12.4 5
Show 20337+4119 CAN 62 AB 246 1.9 5
Show 20337+4119 CAN 62 AC 355 3.4 5
Show 20337+4119 CAN 62 AD 111 6.6 5
Show 20337+4119 CAN 62 AE 109 6.6 5
Show 20337+4119 CAN 62 AF 2 6.9 5
Show 20337+4119 CAN 62 AG 293 7.6 5
Show 20337+4119 CAN 62 AH 357 7.7 5
Show 20337+4119 CAN 62 AI 99 7.9 5
Show 20337+4119 CAN 62 AJ 307 11.4 5
Show 20337+4119 CAN 62 AK 207 13.4 5
Show 20337+4119 CAN 62 AL 172 14.2 5
Show 20336+4116 CAN 61 AB 112 2.3 5
Show 20336+4116 CAN 61 AC 122 3.4 5
Show 20336+4116 CAN 61 AD 323 3.5 5
Show 20336+4116 CAN 61 AE 260 4.5 5
Show 20336+4116 CAN 61 AF 197 5.4 5
Show 20336+4116 CAN 61 AG 350 7.2 5
Show 20336+4116 CAN 61 AH 94 8.0 5
Show 20336+4116 CAN 61 AI 146 8.1 5
Show 20336+4116 CAN 61 AJ 215 9.3 5
Show 20336+4116 CAN 61 AK 75 12.6 5
Show 20335+4115 CAN 60 AB 73 0.7 6
Show 20335+4115 CAN 60 AC 247 6.7 6
Show 20335+4115 CAN 60 AD 43 9.6 6
Show 20335+4115 CAN 60 AE 38 10.2 6
Show 20335+4115 CAN 60 AF 200 10.4 6
Show 20337+4123 CAN 8 AB 258 0.1 7

 
 
WDS 20340+4118 : COMPONENTS
 
 
  A Ab B C D E F G
Ab pa=217.5°
sep=0.02"
 
B pa=39.3°
sep=0.72"
pa=39.3°
sep=0.74"
 
C pa=323.5°
sep=6.26"
pa=323.6°
sep=6.26"
pa=316.9°
sep=6.12"
 
D pa=290.1°
sep=5.70"
pa=290.3°
sep=5.70"
pa=283.6°
sep=5.98"
pa=208.0°
sep=3.47"
 
E pa=319.0°
sep=7.73"
pa=319.1°
sep=7.73"
pa=313.7°
sep=7.64"
pa=300.7°
sep=1.57"
pa=4.1°
sep=3.88"
 
F pa=227.3°
sep=7.92"
pa=227.4°
sep=7.90"
pa=226.7°
sep=8.63"
pa=191.4°
sep=10.61"
pa=183.7°
sep=7.35"
pa=183.8°
sep=11.22"
 
G pa=223.8°
sep=9.35"
pa=223.8°
sep=9.33"
pa=223.5°
sep=10.06"
pa=193.1°
sep=12.09"
pa=187.3°
sep=8.78"
pa=186.3°
sep=12.66"
pa=205.0°
sep=1.52"
 
H pa=24.3°
sep=10.37"
pa=24.3°
sep=10.39"
pa=23.2°
sep=9.68"
pa=61.0°
sep=9.13"
pa=52.1°
sep=12.19"
pa=68.8°
sep=10.02"
pa=34.3°
sep=17.93"
pa=33.5°
sep=19.43"
 
 
20340+4118 A
 
 
Coord arcsec 2000 203359.53+411735.5 Mag 7.9 Spectral class O9.5V (blue) PmRA 1.00
PmDE 1.0
 
 
20340+4118 Ab
 
 
Coord arcsec 2000 203359.53+411735.5 Mag 13.6 Spectral class O9 (blue) Calc delta mag 0.9
Calc coord yes
 
 
20340+4118 B
 
 
Coord arcsec 2000 203359.57+411736.1 Mag 12.7 Calc coord yes
 
 
20340+4118 C
 
 
Coord arcsec 2000 203359.20+411740.5 Mag 16.8 Calc delta mag 4.1 Calc coord yes
 
 
20340+4118 D
 
 
Coord arcsec 2000 203359.06+411737.5 Mag 13.4 Calc delta mag 0.7 Calc coord yes
 
 
20340+4118 E
 
 
Coord arcsec 2000 203359.08+411741.3 Mag 15.8 Calc delta mag 3.1 Calc coord yes
 
 
20340+4118 F
 
 
Coord arcsec 2000 203359.01+411730.1 Mag 15.8 Calc delta mag 3.1 Calc coord yes
 
 
20340+4118 G
 
 
Coord arcsec 2000 203358.96+411728.7 Mag 16.3 Calc delta mag 3.6 Calc coord yes
 
 
20340+4118 H
 
 
Coord arcsec 2000 203359.91+411744.9 Mag 13.9 Calc delta mag 1.2 Calc coord yes