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(cba:news) sdss1502+33 and others (Joe Patterson) [2009-07-14T17:38:07Z]


Dear CBAers,

Thanks for all the great data on SDSS1502 = Boo! Very well-defined eruption, lots of eclipses and superhumps and features well suited for timing studies. It's down to around 16 now, so I imagine will soon disappear from most of your radar screens. But if you're up to a deep-sky challenge, stay with it.

Just to reiterate, V442 Oph is in a very rare low state (around 17) and we'd like to hammer away on it for a while longer. Still pretty sparse CBA coverage (nearly all from Bob Rea)... though enough to define the orbital period. A good star to gang up on.

Time to quit on RX1643+34 = V1084 Her.  We've got enough.

Many DQ Her stars (intermediate polars) in the sky now. We track the pulse timings of these stars, and now's the time for the early-season timings that are vital. DQ Her, V2306 Cyg, and V455 And are all good northern targets now. V1223 Sgr, RX1730-05 (Oph), AO Psc, and FO Aqr are all good southern or equatorial targets.

We'd like to go another 1-2 weeks on V4743 Sgr. What a strange star - full of periods, but still quite mysterious as to what they mean!

joe