Partial Solar Eclipse

Today's partial solar eclipse happened from 11:44 to 13:55 local time, so we combined observing the eclipse with a lunch-picnic for the whole lab.

One telescope with a 25mm positive lens at the eye-piece projected an image of the sun into a cardboard box. Another was used with a tracking mount and an OD=5 solar filter for visual observations and photography.

It was cloudy before the eclipse and rainy in the afternoon so we were lucky with the weather!

Variations on the same theme:

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