ZZ Cancri / ZZ Cnc
Light curve and phase diagrams of the EA type eclipsing binary ZZ Cancri / ZZ Cnc.
The following light curve was constructed from three sets of observations, as follows;
Black 67 unfiltered observations with the Bradford Robotic Telescope Cluster Camera between 2013 March 17 and 2014 May 17
Red 60 observations with the Open University COAST telescope between 2017 October 21 and 2018 March 11 using a V filter
Blue 6 observations with the COAST telescope between 2021 April 3 and 2021 May 19 using a V filter.
Black 67 unfiltered observations with the Bradford Robotic Telescope Cluster Camera between 2013 March 17 and 2014 May 17
Red 60 observations with the Open University COAST telescope between 2017 October 21 and 2018 March 11 using a V filter
Blue 6 observations with the COAST telescope between 2021 April 3 and 2021 May 19 using a V filter.
The following phase diagram was constructed from these observations.
This phase diagram appears below in monochrome.
The period of this system is given as 51.18969d (GCVS, Kreiner) and 51.1892d (AAVSO VSX). There is some o-c activity evident (Kreiner). (Accessed 2021 June 13)
This system has been dropped from my program due to the increased aperture of the available telescope (now 17 inches, was 14 inches) leading to exposures which are too short to be of any use.
[This page updated 2021 June 13.]