[Aavso-photometry] VV is one lonely Pup!
Aaron Price
aprice at gmail.com
Thu Feb 10 14:47:56 EST 2005
Hey all. We really need CCD observations of VV Pup during the next
week. If you can observe it please make it your #1 priority target. We
have no recent data at all. Below is a copy/paste from the recent
announcement in CCD Views #330:
http://www.aavso.org/publications/ccdviews/330.shtml
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3. VV PUP CAMPAIGN IN SUPPORT OF KECK OBSERVATIONS
Dr. Steve Howell, WIYN Observatory & NOAO, has requested observations
of the polar VV Pup to coincide with observations being done at the
Keck Observatory on February 16, 2005 (UT). Time series observations
for as long as possible in BVRI are requested from 00:00 UT February
15 - 23:00 UT February 17, 2005. VV Pup is quite faint and also near
the quarter Moon during the observing window. So we recommend the
following observing plan:
1) Observe it in one filter instead of alternating between filters.
Set your exposure time to get an SNR > 20. You may need to stack
images to reach this SNR.
2) Small and moderately sized telescopes should observe in Ic first
and in Rc if you don't have an Ic filter or someone else is currently
observing in Ic. This will lessen some of the effects of the Moon and
also lower exposure time (this is a field with heavy extinction).
Those with larger apertures should go for V and B photometry.
3) Post to the aavso-photometry discussion group and tell us what
filter you are using and the expected start and end time of your
observation run. This way someone else can use a different filter if
they are observing at the same time.
We currently have very few observations of VV Pup. So baseline
observations prior to and immediately after the observing campaign
would be very useful.
The AAVSO Chat Room will be open for this event! Join us during the
campaign at http://www.aavso.org/aavso/chat.shtml .
The VV Pup chart is here:
http://www.aavso.org/cgi-bin/searchcharts3.pl?name=vv%20pup
Our observations of VV Pup are minuscule!! We desperately need some
photometry. Our latest observations of VV Pup:
VV PUP JAN 01.4960 <15.3 SRX Visual
VV PUP DEC 31.8280 17.2 CCD MLF Unfiltered
VV PUP DEC 28.4424 16.305 CCDI CTX ERR: .03
VV PUP DEC 23.4785 18.38 CCDV CTX ERR: .027
SRX - Rod Stubbing, Australia
CTX - Tim Crawford, Oregon, USA
MLF - Berto Monard, South Africa
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Aaron
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