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  YY Her  
000-BCB-707 (12307 observations)  
Hercules Sequence
18 14 34.18 +20 59 20.9  (273.64242 +20.98914) Search nearby
B1950.0 18 12 26.05 +20 58 21.8
Proper motion
RA: -3.1 +/- 2.5 mas/yDec: 1.0 +/- 1.3 mas/ySource: UCAC4
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
Spectral type M2ep
Mag. range
11.1 - <14.0 B
Discoverer --
25 Aug 1997 (HJD 2450686.2) Ephemeris
Outburst --
Period 589.5 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 M. Gromadzki, J. Mikolajewska, I. Soszynski, 2013, arXiv:1312.6063
2 M. Wiecek, M. Mikolajewski, T. Tomov, E. Swierczynski, C. Galan, P.
Wychudzki, 2010, arXiv:1003.0595v1 [astro-ph.SR]
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
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Supporting Documents
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 Legacy CVs
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.