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SS Cyg and Comparison Stars

HOU - ELM, Yerkes 10 inch Rooftop Telescope, SBIG ST9 CCD, V filter, May 27th, 2002.

Suggestion:  Use Data Tools, Aperture. Options: Radius 10, Sky Radius 20.  Choose Aperture each time and then click over the comparison stars to get brightness counts.  The telescope images are oriented North up and East to the left.

AAVSO Comparsion Finder Chart.  The chart is not the same orientation as the image. 

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