SW Lacertae / SW Lac
Light curve and phase diagram of the EW type eclipsing binary SW Lacertae / SW Lac. These were constructed from photometry of 59 images taken with the Bradford Robotic Telescope Cluster Camera (BRT) between 2014 July 15 and 2016 October 1 through a tri-colour green filter.
The catalogue period for this star is 0.3207209d (GCVS), 0.3207152d (AAVSO VSX) and 0.3207256d (Kreiner). There is considerable o-c activity with this star (Kreiner) and the maxima and minima are of variable values (GCVS). (Accessed 2018 December 6.)
I observed a secondary minimum on 2018 December 12 from Somerby Observatory using the 2" Titan. The images were not filtered, ie 'CV'.
[ This page updated 2018 December 15 ]