V698 Cygni / V698 Cyg
Light curves and phase diagrams of the EA type eclipsing binary V698 Cygni / V698 Cyg.
The following light curve and phase diagram were constructed from photometry of 171 images taken with the Open University COAST telescope. 150 images were taken with the MkII telescope (a C14 14 inch / 35 cm Schmidt-Cassegrain) between 2017 July 10 and 2021 July 5, and 21 images were taken with the MkIII telescope (a 17 inch / 42 cm CDK17 corrected Dall-Kirkham) between 2021 July 27 and 2022 January 2. All images were through a V filter, and the same comparisons were used throughout.
Enlargements of the primary and secondary minima appear below - note the different magnitude scales between the two.
The catalogue value for the period of this star is 97.7732d AAVSO VSX, Kreiner and GCVS. (Accessed 2023 August 13).
[ Page updated 2023 August 13 ]