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(cba:news) stars for May-June (Joe Patterson) [2021-05-18T14:34:23Z]


Hi CBAers,

Pardon my long silence. I'm teaching every day now, with 50% in-class students and 50% remote. Really impossible to serve both audiences simultaneously! So research time is limited. Nevertheless...

On clear nights, we still need to keep the pressure up on AM CVn - taking it all the way to ~2 airmasses. The 1011 s signal (the negative superhump) went faint on us a few weeks ago... and it take a lot of effort to measure the phase of a signal which is down to 0.002 mag. Yet that's what the PHYSICS question (the relation to the positive superhump) requires.

CI Aql is another super choice - both hemispheres, and for at least the next two months.

Recent novae: V1974 Cyg, V4743 Sgr, and V1494 Aql

OV Boo. Paper just about ready to go. A couple more eclipses would be great. 19th mag, only suitable for big scopers.

Nova Sco 1437. Really beguiling light curve!

And some IPs (Enrique might want to add/subtract among these): V2306 Cyg, V1223 Sgr, AO Psc

joe
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