[Aavso-photometry] Transforming

[George Silvis]

I've put together a PC application that can help with the application 
of your transforms to your data. Its available at: 
http://www.gasilvis.net/transformer/ . It references  Bruce Gary's 
website which I think extends Cohen's work on the transforming process.

If you have any questions, feel free to email me direct.

George
SGEO

At 07:46 AM 3/29/2009, Barbara G. Harris wrote:
>I have been doing CCD photometry of variable stars for about 2-3 
>years now primarily with the V filter.  I do have a complete set of 
>photometric filters.  One of my New Year's resolutions was to obtain 
>my transformation coefficients.  I am sort of learning as I go.  I 
>found Lou Cohen's paper on how to calculate transformation 
>coefficients and so far I have imaged M67 in B,V,R, and I.   I have 
>followed his instructions and calculated my transformation 
>coefficients. My next step is to apply these coefficients to my 
>observations.  I am still a little lost in this area.  My question 
>is if I image a star through a V filter, how many other colors (at a 
>minimum) do I need of that star to transform the V estimate?  Also 
>can someone point me to additional reading on applying 
>transformation coefficients? Thanks, Barbara Harris (HBB) No virus 
>found in this outgoing message. Checked by AVG. Version: 7.5.557 / 
>Virus Database: 270.11.31/2028 - Release Date: 3/28/2009 7:16 AM 
>_______________________________________________ Aavso-photometry 
>mailing list Aavso-photometry at mira.aavso.org To change options or 
>unsubscribe, goto http://www.aavso.org/mailman/listinfo/aavso-photometry


Transformer: a tool to make transforming your AAVSO observations easy:
      http://www.gasilvis.net/transformer/