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Details for Revision 2
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  AU Cyg  
000-BCL-291 (3176 observations)  
Cygnus Sequence
20 18 32.76 +34 23 21.3  (304.63650 +34.38925) Search nearby
B1950.0 20 16 36.66 +34 13 55.1
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
IOMC 2680000047 IRAS 20165+3413 IRC +30426
RAFGL 2550    
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Variability type
Spectral type M6e-M7e
Mag. range
9.5 - 15.3 p
Discoverer --
04 Oct 1974 (HJD 2442325) Ephemeris
Outburst --
Period 435.31 d
Rise/eclipse dur. --
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Click reference title/citation to view in new window. Roll over index number to view submission details.
1 J. Alfonso-Garzon, A. Domingo, J.M. Mas-Hesse, A. Gimenez, 2012,
arXiv:1210.0821 [astro-ph.IM] (online info)
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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Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
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.