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Preliminary analysis of photometric variations of central star of planetary nebula Sh 2-71

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Original title:Preliminary analysis of photometric variations of central star of planetary nebula Sh 2-71
Authors:Zdeněk Mikulášek, Luboš Kohoutek, Miloslav Zejda, Ondřej Pejcha
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Original language:English
Field:Astronomy and astrophysics
Type:Article in Periodical
Keywords:UBVRI photometry; planetary nebula; Sh 2-71; period; PCA

We confirm the presence of regular UBVRI light variations of the object in the center of the planetary nebula Sh 2-71, with an improved period of P=68.132+/-0.005 days. The shapes and amplitudes of light curves, in particular colours, are briefly discussed.

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