[Aavso-photometry] Re: HD 80606 & AIP4Win Help

[Geir Klingenberg]

The following procedure works well for me:

1. Select HD 80606 as comp star C
2. Select GSC 3431:892 as variable V
3. Any other star will do as K (except HD 80607)
4. Keep the Target Finding Radius low (I use 3 pixels) and run the
Multi-Image Photometry Tool.

Repeat the procedure, this time with HD 80607 as the comp star C.

One then have the ADU for the three stars of interest and can import
the two result files into a spreadsheet to calculate instrumental mags
and finally differential mags for HD 80606 with HD 80607 as comp star,
and GSC 3431:892 is used as check star.

It is a bit more work than usual but still a lot faster than single
image processing :)

Geir Klingenberg


On Thu, 24 Feb 2005 15:26:13 -0800 (PST), Tim Crawford
<tcarchcape at yahoo.com> wrote:
> AIP4WIN seems to go haywire when I do a multiple image
> process on HD 80606 Time Series... I presume it is
> because I am using the close star HD 80607.
> 
> I think some one already posted that they had a
> workout for this problem.. would appreicate some help
> if some one does.
> 
> Single image process works out OK but it is too
> sloooooooow, especially with AIP4WIN droping out the
> image time on calibrated Single Image Processing which
> means the header has to be also opened and the data
> transferred on each indivudal integration.
> 
> Help!
> 
> CS
> 
> Tim Crawford CTX
> Arch Cape Observatory
> OR
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