(cba:news) erupting stars, etc.
jop at astro.columbia.edu
Mon Feb 6 14:35:36 EST 2006
Lotta stars popping off up there. Let's talk about them, and other
The two just-erupted stars are OU Vir and YY Dra (=DO Dra). I suggest
skipping OU Vir (since we covered it very well last time around) and
making a big effort on YY Dra (since we've never observed an outburst "in
season" before. Fire away!
FS Aurigae also just erupted, and was caught by Bart Staels. I found the
light curve fascinating... but it's somewhat likely to be back to minimum
(~16th mag) by now, since the few known eruptions have always been very
short. Someday that might change. Anyway, since Auriga is atill
reasonably available, this is a good targe - for at least a few days.
In my opinion, it's time to quit on ASAS0233-10. The star is getting
faint, the moon is getting bright, and we already know both periods (Porb
and Psh) pretty well.
IGR0023+61 = RX0022+61 remains a VERY VERY GOOD TARGET, For all the
reasons described before. A definite special for residents of the frozen
ASAS1025-15 (Hya) renains available and bright, and might be a good target
for a few more days. But I do think that YY Dra is definitely the better
choice in the morning sky.
Finally, there's still T Pyx. We still don't have enough data to produce
a seasonal timing of minimum (accurately, anyway). Let's remedy this!
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