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HD 13334


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A photometric study of the southern Blazhko star SS For: unambiguous detection of quintuplet components
We present our analysis of photometric data in the Johnson B and Vfilter of the southern Blazhko star SS For. In parallel, we analysed theV observations obtained with the All Sky Automated Survey-3 photometryof the star gathered between 2000 and 2008. In the frequency spectraresulting from a Fourier analysis of our data, the triplet structure isdetectable up to high order, both in the B and V data. Moreover, we findevidence for quintuplet components. We confirm from our data that themodulation components decrease less steeply than the harmonics of themain frequency. We derived the variations of the Fourier parametersquantifying the light-curve shape over the Blazhko cycle. There is goodagreement between the spectroscopic abundance and the metallicitydetermined from the Fourier parameters of the average light curve. SSFor is peculiar as a Blazhko star because of its strong variationsaround minimum light.

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Observation and Astrometry data

Constellation:Fornax
Right ascension:02h09m45.36s
Declination:-27°06'12.8"
Apparent magnitude:9.652
Proper motion RA:5.3
Proper motion Dec:-40.6
B-T magnitude:10.426
V-T magnitude:9.716

Catalogs and designations:
Proper Names
HD 1989HD 13334
TYCHO-2 2000TYC 6432-1387-1
USNO-A2.0USNO-A2 0600-00852412
HIPHIP 10092

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