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Latest Details
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Name
  V2165 Cyg  
AAVSO UID
000-BDP-866 (No observations)  
Constellation
Cygnus Sequence
J2000.0
21 33 55.30 +50 45 09.2  (323.48042 +50.75256) Search nearby
B1950.0 21 32 10.30 +50 31 46.1
Proper motion
RA: 0.885 +/- 0.167 mas/yDec: -1.781 +/- 0.149 mas/ySource: Gaia DR1
Galactic coord. 94.229 -0.771
Other names

(Internal only)
2MASS J21335529+5045091 BD+50 3363 BD+50 3363B
GSC 03603-00717 Gaia DR3 2171411293075773952 HD 235542
HD 235542 B HIP 106476 IOMC 3603000030
TIC 417436377 TYC 3603-717-2 UCAC4 704-085009
WDS J21339+5045B WISEA J213355.30+504509.2  
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Variability type
EA
Spectral type B
Mag. range
9.46 - 9.78 V
Discoverer --
Epoch
12 Sep 2019 (HJD 2458738.979) Ephemeris
Outburst --
Period 1.96239 d
Rise/eclipse dur. 13%  (6.1 h)
Remarks
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1 Lee, Sam Hipparcos and INTEGRAL-OMC data contaminated by HD 235542A (V= 9.45; sep. 5"). Range has been corrected.
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References
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1 Gaia collaboration; et al., 2022, Gaia Data Release 3 (Gaia DR3) Part 4
Variability
2022yCat.1358....0G
2 Huang, C. X.; et al., 2020, Photometry of 10 Million Stars from the First
Two Years of TESS Full Frame Images: Part I
2020RNAAS...4..204H
3 J. Alfonso-Garzon, A. Domingo, J.M. Mas-Hesse, A. Gimenez, 2012,
arXiv:1210.0821 [astro-ph.IM] (online info)
2012arXiv1210.0821A
4 European Space Agency, 1997, The Hipparcos and Tycho Catalogues, ESA
SP-1200
1997yCat.1239....0E
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 = 8.68H = 8.84K = 8.77J - K = -0.10
AllWISE W1 = 8.76W2 = 8.78W3 = 8.85W1 - W2 = -0.02
SDSS-DR12 u = 13.16g = 14.43r = 13.94i = 14.21z = 11.97u - g = -1.27r - i = -0.27
Images
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Supporting Documents
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1 EA Phase Plot (crowding corrected) Lee, Sam 2024-10-03 00:29 UTC EA Phase Plot of the target from TESS, corrected INTEGRAL-OMC, transformed and corrected Hipparcos; shifted to corrected INTEGRAL-OMC.
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Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
4 Lee, Sam 2024-08-25 19:15 UTC Identification from 2022yCat.1358....0G. Epoch and eclipse duration from Hipparcos, INTEGRAL-OMC and TESS data. Position and spectral type from Gaia DR3.
3 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
2 Admin, VSX 2007-03-23 19:53 UTC Added period, epoch and spectral type from [1997yCat.1239....0E].
1 Admin, VSX 2005-12-18 01:33 UTC Initial database population.