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

Zdenek Mikulasek, Lubos Kohoutek, Miloslav Zejda +1

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. Th…