July 24, 2010 on 3:41 pm | In Uncategorized | Comments Off

As a practice for the attempt to image the ISS transit of the sun on Monday morning, Frank Garner and I made a testrun yesterday.  Here two images of Sunspot AR1089 through an H-alpha filter.

   suna0005-10-07-23-09-06-22sunspot10891       suna0001-10-07-23-08-51-36sunspot10894

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