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The variability of V2477 Cyg (NSV 13016 = NSVS 3227395 = HD 239379 = TYC 3945-1423-1), amongst many others, was discovered photographically by The former gave coordinates and a finder chart, described the system as a short period variable, and designated it as S 7891. Skiff (1999) identified many Sonneberg variables, amongst them S 7891, giving accurate coordinates and associating them with existing names. The first accessible elements (epoch, period) were published by Since then, there have been a number of eclipse timings, but no light curve analysis.
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R. Nelson (2017) studied this question.
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