Preliminary analysis of photometric variations of central star of planetary nebula Sh 2-71
Zdenek Mikulasek, Lubos Kohoutek, Miloslav Zejda, Ondrej Pejcha
Abstract
We confirmed the presence of regular UBVRIc light variations of the object in the centre of planetary nebula Sh 2-71, the improved period of them being P =(68.132+/-0.005) days. The shapes and amplitudes of light curves in particular colours are briefly discussed.
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