EE Cephei / EE Cep
Light curve of the EA type eclipsing binary EE Cephei / EE Cep, constructed from photometry of 192 images taken with the Open University COAST telescope (a 14 inch / 35 cm Schmidt-Cassegrain) using a V filter. Images taken between 2017 July 6 and 2020 March 8.
The scale of the V axis is such that it can accommodate a primary minimum, with Vmag=12.15. The period of this star is ~2500 (two thousand five hundred) days, and magnifying the V axis and replotting (see below) suggest that a primary minimum is just beginning. According to the AAVSO VSX, there is a primary minimum occurring between March 11 and 21 April this year (2020), with the minimum itself on 31 March. Unfortunately this star is now not visible from COAST, but hopefully it will become visible again before the middle of the minimum. Watch this space!
The catalogue period for this star is given as 2050d (GCVS) and 2049.53d ( AAVSO VSX). Kreiner gives no period but suggests some o-c activity. However, this may simply be due to the period not being accurately known. (Accessed 2020 March 20.)
[This page updated 2020 March 20.]