Reply To: CG Dra: a VSS campaign

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Maxim Usatov

Data from today, at quiescence. Noisy data, as we approach 17th mag, and the seeing wasn’t perfect. Looks like we see another pair of eclipses with an asymmetric profile. Looking at various literature breaking down DN light curves, I think this curve can be explained with a low-inclination grazing eclipse and a hot spot responsible for the ingress hump. Things going through my head:

1) If CG Dra has developed a hot spot and switched to asymmetric profile, how typical this state switching is for dwarf novae?
2) Is there any user-friendly light curve modeling software so we could try to build a model of the system to fit this data?