[Aavso-photometry] RA-DEC information on comp stars in CCD Charts

Arne Henden arne at aavso.org
Wed Jan 7 21:28:52 EST 2009


On Wed, Jan 7, 2009 at 8:19 PM, Bill Perkins
<billperkins at birdlandobservatory.net> wrote:
> Hello,
>
> I was wondering if RA-DEC (current) information on comp stars in the CCD charts
>
> http://www.aavso.org/observing/charts/ccd.shtml
>
> is available in tabular form somewhere on the AAVSO site? I'd like this information to permit star identification in "image space" using Visual PinPoint (pointing to NOMAD on the net) within MaxIm DL. I can get this information by other means, but was just curious about a possibly more convenient source for this information.
>
> Another question I have (in view of the parenthesis indicating that the CCD Charts with multicolor photometry are out of date; see http://www.aavso.org/observing/charts/) is what is the current best resource for photometric data for CCD imagers (using Cousins/Johnson filters) on the AAVSO site or in general?
>
Hi Bill,
Unfortunately, not everything on our web site is up to date, and the CCD pages
are among those that need drastic improvement.  Use our VSP plotting package
(the Pick a Star plus Find Charts option in the upper left of the home
page) rather
than the outdated links on the url that you show above.  In general,
*all* fields
are now "CCD" charts, as we have improved the photometry throughout our
program.  If you get the photometry table for any field, you will have
the RA and
DEC for any comparison/sequence star that you want.

Let me know if you have any other question!
Arne


More information about the Aavso-photometry mailing list