[vsnet-chat 885] CCD photometry

[bas@lowell.Lowell.Edu (Brian Skiff)]

     In response to Larry Robinson's query, the basic technique is outlined
in vsnet-chat 879, which can be found at the VSNET Web site starting at the
"old log archive" link.
     At the VSNET site also is basic software for doing photometry and even
controlling an LX200.
     Precise positions for Landolt standards can be found in a list of mine:

http://ftp.lowell.edu/pub/bas/starcats/landolt.all
http://ftp.lowell.edu/pub/bas/starcats/landolt.notes

(yes, the notes are important, since they mention problem stars, etc.)  
Data for the Landolt stars can be found, for instance, at the Goddard data
center:

http://adc.gsfc.nasa.gov/adc-cgi/cat.pl?/catalogs/2/2118/
http://adc.gsfc.nasa.gov/adc-cgi/cat.pl?/catalogs/2/2183/

for the 1983 and 1992 lists, respectively.  I also have been compiling an
extensive list of BVRI _observations_ (not standard stars for the most part)
for a wide-field survey project.  This may be useful for some purposes, but
they should not be used as bona-fide standards:

http://ftp.lowell.edu/pub/bas/starcats/loneos.stds

The nitty-gritty details of the software and reductions requires some hand-
holding at the start.  Arne Henden (USNO-Flagstaff, aah@nofs.navy.mil) has
offered to help those wanting to get started doing all-sky CCD photometry.

\Brian

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