Takahashi TOA-150 refractor (diameter 150mm, final focal 2500mm), Baader Herschel prism and Canon 5D Mark II. Exposure of 1/8000s at 100 ISO, extracted from a series of 16 images (4 images/s) started 2s before the predicted time. May 22nd 2010 at 13h 14min 09s UT.
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