[Aavso-photometry] Linearity test puzzle

[Wolfgang Renz]

I could imagine that this is also an issue for differential photometry
when one tries /more or less successfully) to keep the stars at the
same pixel !

Especially for mmag photometry on the bright exoplanets.

Clear skies
  Wolfgang

-- 
Wolfgang Renz, Karlsruhe, Germany
Rz.BAV = WRe.vsnet = RWG.AAVSO



----- Original Message ----- 
From: "Michael Koppelman" <lolife at bitstream.net>
To: "Wolfgang Renz" <w_renz at onlinehome.de>
Cc: <aavso-photometry at mira.aavso.org>
Sent: Wednesday, January 25, 2006 10:07 PM
Subject: Re: [Aavso-photometry] Linearity test puzzle


> Thank you, I have that problem, too, and appreciate the info.
> 
> Michael
> 
> 
> 
> On Jan 25, 2006, at 1:38 PM, Wolfgang Renz wrote:
> 
> > FYI
> >
> >
> >
> > ----- Original Message -----
> > From: "Gary Neilson" <deepskyridge at yah...>
> > To: <SBIG at yahoogroups.com>
> > Sent: Wednesday, May 11, 2005 6:23 PM
> > Subject: [SBIG] CCD Ghosting
> >
> > I found a paper describing this and have included a link to it.
> >
> > Armin Rest - Publications - Residual Images in CCD Detectors -  
> > 02ghosting:
> > www.astro.washington.edu/rest/papers/02ghosting.pdf
> >
> > It is a bit technical, however the introduction tells you most of what
> > you need to know.
> >
> > As an aside, I have not found this mentioned in any of the most
> > popular books on CCD astro imaging.
> >
> > It will change my image acquisition techniques.
> >
> > Thanks for all the reponses.
> >
> > Gary