[Aavso-photometry] RE: BZ UMa - 18/19 Jan
lou krajci
loukrajci at comcast.net
Wed Jan 19 02:00:31 EST 2005
I started on BZ UMa at about 06:45 UT. I have scattered, thin cirrus, but I
think it will improve over time tonight.
A quick, eyeball comparison of my first CCD image to
http://www.aavso.org/cgi-bin/shrinkwrap.pl?path=/charts/UMA/BZ_UMA/BZUMA-F.J
PG
shows that BZ UMa is now about 1/4 magnitude fainter than the 13.7 mag.
comparison star...so let's say it's about 13.9 - 14.0 (unfiltered CCD) right
now....but if you consider that my unfiltered CCD is sort of like R...and
the comparison star has a B-V color index of about 1.0...then BZ UMa is
perhaps around 13.1 - 13.2 in R. (I am not submitting this paragraph as
data...just a quick and dirty comment.)
I'll submit my data tomorrow morning via webobs.
Tom Krajci
Albuquerque, New Mexico
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