What is NSV 1436?
I noticed its in outburst again last night v=13.0, but for those unfamiliar of it, this is one of the enigmatic Ross variables discovered to be variable photographically about a century ago. What's so strange about it?
Well, primarily it has only been found in regular cv-like outbursts to magnitude 13 or so in the past couple years. For at least a decade before that, it had not been observed in such outburst. As far as I know this is the only cv-like variable that stops outbursting for extended periods and then apparently resumes a regular cycle.
Also, it appears that from the limited number of faint positive observations, it may have 2 "minima", down around mag 18 and around mag 16-17.
This seems to be an extremely unusual behavior, and no apparent physical mechanism to explain it!? What sort of campaign or observations could be performed on it to try elucidate its peculiar nature? I think this really deserves a lot of attention. It certainly is bugging me.