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Name
  YY Her  
AAVSO UID
000-BCB-707 (12208 observations)  
Constellation
Hercules Sequence
J2000.0
18 14 34.18 +20 59 20.9  (273.64242 +20.98914) Search nearby
B1950.0 18 12 26.03 +20 58 21.9
Galactic coord. 48.144 +17.243
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
AAVSO 1810+20 AN 6.1919 ASAS J181434+2059.3
ASAS J181434+2059.4 EM* AS 297 MHA 352-34
NSVS J1814344+205923    
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Variability type
ZAND+ELL
Spectral type M2ep
Mag. range
11.1 - <14.0 B
Discoverer --
Epoch
25 Aug 1997 (HJD 2450686.2) Ephemeris
Outburst --
Period 589.5 d
Rise/eclipse dur. --
Remarks
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References
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1 M. Gromadzki, J. Mikolajewska, I. Soszynski, 2013, arXiv:1312.6063
[astro-ph.SR]
2013arXiv1312.6063G
2 M. Wiecek, M. Mikolajewski, T. Tomov, E. Swierczynski, C. Galan, P.
Wychudzki, 2010, arXiv:1003.0595v1 [astro-ph.SR]
2010arXiv1003.0595W
3 P.R. Wozniak, S.J. Williams, W.T. Vestrand, V. Gupta, AJ 128, 2965, 2004 2004AJ....128.2965W
4 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
5 G.H.Herbig, PASP 70, 605, 1958. 1958PASP...70..605H
6 L.Plaut, AN 244, 289, 1932. 1932AN....244..289P
External Links
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Images
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Supporting Documents
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Campaigns/Programs
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Revision History
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4 Admin, VSX 2013-12-27 00:49 UTC Update from [2013arXiv1312.6063G].
3 Admin, VSX 2010-03-04 21:43 UTC Update from [2010arXiv1003.0595W].
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.