V413 Aquilae / V413 Aql
Light curve and phase diagram of the EA type eclipsing binary V413 Aquilae / V413 Aql.
These have been constructed from photometry of 68 images taken with the Open University COAST telescope between 2017 July 12 and 2019 December 9. The images were taken using a V filter.
The catalogued period for this system is 425.3d (GCVS), 426.53d (AAVSO VSX) and 426.89d (Kreiner). These all essentially generate the same phase diagram on this scale, that with the period 426.53d is shown below.
The large scatter during the out of eclipse phases of the above diagram might be due to one of the components being a Z And type variable, as listed in the AAVSO VSX data.
[This page updated 2019 December 22.]