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Latest Details
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Name
  V1696 Cyg  
AAVSO UID
000-BDP-503 (1 observation)  
Constellation
Cygnus Sequence
J2000.0
20 41 21.55 +52 35 15.2  (310.33979 +52.58756) Search nearby
B1950.0 20 39 54.40 +52 24 29.0
Proper motion
RA: -5.633 +/- 0.114 mas/yDec: -3.336 +/- 0.101 mas/ySource: Gaia DR1
Galactic coord. 90.081 +6.469
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
BD+52 2777 EM* AS 438 HD 197406
HIP 102088 IOMC 3951000046 NSV 13240
WR 148    
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Variability type
*
Spectral type WN7.5
Mag. range
10.3 (0.06) V
Discoverer --
Epoch
18 Aug 1964 (HJD 2438626.237) Ephemeris
Outburst --
Period 4.3174 d
Rise/eclipse dur. --
Remarks
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1 GCVS Team SB1 (Porb = 4.3174d). Epoch of Min brightness is given. The eclipse of the accretion disc around the compact object formed in the outburst of a Supernova in a binary system about 5*10**6 years ago is possible [A.F.J.Moffat, W.Seggewiss, IAU Symp N83, 447, 1978.].
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References
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1 J. Alfonso-Garzon, A. Domingo, J.M. Mas-Hesse, A. Gimenez, 2012,
arXiv:1210.0821 [astro-ph.IM] (online info)
2012arXiv1210.0821A
2 S.Sivertsen, AsAp Suppl 43, N2, 221, 1981. 1981A&AS...43..221S
3 K.Bracher, PASP 91, 827, 1979. 1979PASP...91..827B
External Links
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Catalog Data
Information from selected catalogs obtained by cross-matching to 2 arc seconds using the CDS X-Match Service. These data may not be complete.
2MASS J = 8.76H = 8.53K = 8.32J - K = 0.44
AllWISE W1 = 8.09W2 = 7.84W3 = 7.13W4 = 6.25W1 - W2 = 0.24W3 - W4 = 0.88
APASS-DR9 B = 10.87V = 10.35g' = 10.66r' = 10.16i' = 10.05B - V = 0.52
Images
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Supporting Documents
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Revision History
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2 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.