Exoplanet WASP-11b/HAT-P-10b with a DSLR

Hi everyone,

Last week I had a chance to try to measure a transit by exoplanet WASP-11b/HAT-P-10b using my DSLR camera.  My equiment used included a Canon Rebel XT (350D) and an 8 inch f/10 SCT.  For a period of just over 3 hours, I took a series of one minute exposures at ISO 1600 and calibrated using flat and dark frames.  I then used AIP4WIN with the green channel of the images with a selection of about 12 comp stars for ensemble photometry measurements which I've graphed below.  The Y axis is magnitude with an arbitrary offset so that I could place the two lightcurves relatively close to each other for comparison.  I haven't yet done any tranformations to a standard such as Johnson V since I was only interested in the shape of the curve.

To me, there seems to be a clear drop in brightness consistent with the time and depth as given by http://var2.astro.cz [1], the web site that I was using as a reference.  It also appears that I may have missed the very beginning of the transit since it took me a little longer to set up my gear than I had hoped.

Thanks for looking, and let me know what you think.

-Mike Durkin (DMPA)