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Name
  V0695 Cyg  
AAVSO UID
000-BCV-681 (330 observations)  
Constellation
Cygnus Sequence
J2000.0
20 13 37.91 +46 44 28.8  (303.40796 +46.74133) Search nearby
B1950.0 20 12 03.45 +46 35 17.1
Galactic coord. 82.676 +6.777
Other names

(Internal only)
31 Cyg A omi Cyg 1 AAVSO 2010+46
ADS 13554 A BD+46 2882 HD 192577
HD 192578 HIP 99675 HR 7735
IRC +50320 RAFGL 2531 SAO 49337
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Variability type
EA/GS/D
Spectral type K4Iab+B4IV-V
Mag. range
3.73 - 3.89 V
Discoverer --
Epoch
01 Jun 1972 (HJD 2441470) Ephemeris
Outburst --
Period 3784.3
Rise/eclipse dur. 2%
Remarks
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1 GCVS Team 31 Cyg. Probably enters a common system with V1488 Cyg (32 Cyg). VB A (B 13.0m, 36.8", 332deg; C 6.99m, 107.0", 174deg; D 5.0m, 338", 323deg). d = 0.0151P. Interferometric binary eclipsing system (A = 0.08", E = 0.15 [R.H.Wilson, AJ 55, 158, 1950.]; 0.035", 141.8deg, 1980.4). The epoch of eclipse of the component of the spectral type B4 by the component of the type K4 is given in the Table. The amplitude strongly varies depending upon the wavelength: A(lambda 6560 A) = 0.03m, A(lambda 3530 A) = 1.80m [R.H.Bloomer, Jr., F.B.Wood, PASP 85, 348, 1973.].
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References
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1 K.O.Wright, Victoria Contr N116, 1970. --
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Images
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Supporting Documents
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Revision History
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2 Admin, VSX 2010-01-04 23:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-17 20:33 UTC Initial upload.