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Name
  AU Cyg  
AAVSO UID
000-BCL-291 (3176 observations)  
Constellation
Cygnus Sequence
J2000.0
20 18 32.80 +34 23 21.0  (304.63667 +34.38917) Search nearby
B1950.0 20 16 36.70 +34 13 54.8
Galactic coord. 72.899 -0.855
Other names

(Internal only)
2MASS J20183277+3423205 AAVSO 2014+34 AN 49.1906
DO 18840 HD 193345 HV 1209
IRAS 20165+3413 IRC +30426 RAFGL 2550
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Variability type
M
Spectral type M6e-M7e
Mag. range
9.5 - 15.3 p
Discoverer --
Epoch
04 Oct 1974 (HJD 2442325) Ephemeris
Outburst --
Period 435.31 d
Rise/eclipse dur. --
Remarks
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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 T.A.Uranova, Perem. Zvezdy 7, N5, 267, 1950. --
3 T. Karlsson, Maxima of Mira stars --
4 General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al.
--
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Supporting Documents
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Revision History
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3 Otero, Sebastian Alberto 2019-12-04 21:43 UTC Period, epoch and range from AAVSO data. Gaia DR2 position.
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.