[AZ-Observing] Photometry Coefficients
- From: "Gary Frey" <gfreynpo@xxxxxxxxxxxx>
- To: <az-observing@xxxxxxxxxxxxx>
- Date: Tue, 1 Nov 2011 15:40:59 -0700
In the long ago past we who used 1P21 tubes or SSP-3 with a Photodiode used
standard stars (Landolt) and took data from an airmass of 1 to an air mass past
2 and later calculated our transformation and extinction coefficients for the
BVRI filters we were using......
The question is.............
Any one know why the same process using standards stars (landolt) with a CCD
camera (must use flat field and dark frame calibrations) cannot be used to
determine transformation and extinction coefficients for selected BVRI filters?
Gary Frey
--
See message header for info on list archives or unsubscribing, and please
send personal replies to the author, not the list.
Other related posts:
