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Photometry
[FONT="Arial"]I have been trying photometry for some time now using Wratten filters or just V- filter with my achro refractor. The results are not very encouraging so far. I can get magnitude varying +/- 0.1 to 0.5 from catalogue magnitude. Even so it lets me to plot light curves, although magnitudes are not correct. I’m thinking about purchasing proper Photometric filter – Astrodon Johnson/Bessell V. At over $200 for little piece of glass (ouch) I would appreciate any comments about what can I expect from this filter. Also if you could post some images taken with this filter.[/FONT]
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