(cba:news) stars for june (and may)

Joe Patterson jop at astro.columbia.edu
Wed May 28 17:36:23 EDT 2003


Dear CBAers,

Sorry for the long silence.  A long observing run really knocked me out.
But now I've gotten pretty caught up, so here goes.

OU Vir seems to have given up the ghost a few days ago, so it's
disappeared from the CBA world.  We'll definitely patch together a nice
paper with outburst coverage, coupled with photometry from the MDM 1.3 m
which we'll get in June.

We got great coverage of LX Ser from Lew Cook and Cap'n Bob, and some from
Tonny.  But the star absolutely refused to show any kind of superhump (to
0.02 mag limits).  The mean orbital light curve is given in the
attachment; it's a cutie, use it any way you might like.  The mean time of
minimum light is JD 777.8707 (this is the average over ten straight nights
of coverage).  Anyway, exit stage right for LX Ser.

RX Vol and GZ Cnc gave up the ghost a long time ago, as most of you know.

We got about 50 days on HZ Her, definitely enough for the season.

Likewise for WX Cen, EX Hya, and IM Nor.  Successful campaigns all.

So that's a nice collection of stars to take OFF our list.  What remains?
Well, from the list in the last message there's still RX0625+73,
RX1548-45, MV Lyr, and V4743 Sgr (1901-22).  These are still great targets
- we love 'em all!

And here are the new entrants for June...

Lib3 (1450-24).  Allegedly a 14.6 mag novalike, mighty bright, easy field,
nicely placed, a CBA green-light special.  Go for it.

RX1643+34.  One of nice stars from last year, with a whopping QPO - the
biggest in captivity.  Still a QPO, or has it (he hopes!) morphed into
something different?  At 12.7, good for small scopers.

V1494 Aql (1923+05).  Time to revisit after its solar sojourn.  The
"Biosphere Nova"... now showing a strong orbital modulation, and possibly
more.

Time to make some new friends!

joe

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