V530 Cygni / V530 Cyg
Light curve and phase diagram of the 'INSA' (GCVS data and type) or 'E' type eclipsing binary (AAVSO VSX) V530 Cygni / V530 Cyg. (There is some ambiguity about which type of variable it is.)
The following light curve and phase diagrams were constructed from photometry of 211 images; 163 images taken with the Open University COAST C14 telescope between 2017 July 9 and 2021 July 8, and 48 images taken with the COAST CDK17 telescope between 2021 July 27 and 2024 January 17. All images were taken using a V filter. The same comparison stars were used throughout and the exposures were adjusted to compensate for the increase in aperture.
The CGVS lists this star as an 'INSA' type variable but does not give a period. The AAVSO VSX lists this star as an 'E' type eclipsing binary (ie sub-type unknown) with a period of 50.830754 d. My observations are consistent with the latter category. (Accessed 2024 February 3.) An enlargement of the erstwhile primary minimum appears below.
[This page updated 2024 February 3.]