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(cba:news) V1674 Her: Save the Last Dance for Me (Joe Patterson) [2021-09-24T16:41:04Z]


Hi CBAers,

Hercules is no longer in prime position, but it would be *great* if we could get two more weeks of data on Nova Her - especially in the USA where the coverage has fallen off. Aside from being (maybe) the fastest/most luminous nova in history, it has shocked me with its two periodic signals - orbit and spin. I think there is good evidence here that accretion (not just nuclear) plays a large part in the nova energetics. The last I checked, this is nova heresy.

The most recent data is a tad sketchy, largely due to sky position and a bright moon. But it looks like the 3.6 hour orbital wave, really healthy for the last 70 days, is now getting weak. Simultaneously the 8-minute spin signal appears to be strengthening. Whether we can prove this depends on the density of coverage during the next two weeks

As usual, *length* of run matters a lot. This time of year, 3 hours would be great. 1 hour doesn't help much. The spin ephemeris is in good shape; only the orbit is getting funky.

Got any not-yet-sent runs?  I'm awfully eager to see them!

joe

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