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Solar System Sun

More sun watching

A break occurred in the clouds just before sunset on friday so I took the opportunity to image the large sunspot group currently crossing the face of the sun. My front porch has a reasonable gap between the trees so I setup the Zenithstar on the Astrotrac and attached the Canon 350D.

Zenithstar 70 on Astrotrac

I stacked about 40 images from the Canon. Individual exposures were 0.003 seconds at ISO 100. The focal length is 420mm.

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