[Aavso-photometry] Flat Stuff

Chuck Pullen cpullen at pacsafe.com
Mon Jan 17 18:29:31 EST 2005


At 23:17 1/17/05 +0000, Robert Koff wrote:

>Chuck,
>
>Thanks for the comments.  I have recently stopped using the diffuser for 
>I-band flats, and in such cases I set the drive to slew at guide speed (2X 
>sidereal with the LX200).  This smears out the star trails pretty well, 
>and they seem to median out.  BTW, I generally point near the zenith for 
>the flats.
>
>Bob Koff

Hi Bob - yes, the zenith is supposed to have the flattest sky.  I point 
there as well.

Chuck 



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