Photoblog—Stars with Carl

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favorite icon #astronomy #planetarium

My partner and I went to the Rochester Museum and Science Center's planetarium for the “Stars with Carl” event this past weekend. The “Carl” in question is a 1968 Carl Zeiss Mark VI star projector — a fully analog unit that if I remember right, weighs over 2 tons.

The presenter showed us how the skies change with season and latitude, and demonstrated “star hopping” between different stars and constellations. I took some pictures of Carl at the end — a very cool machine:

A large blue sphere with raised blue rings on the surface, each surrounding a glass lens. The sphere is mounted on a black metal truss.

A large cylindrical blue and black metal truss with a pivot passing through the center, held up on a large forked cradle. There is a blue sphere covered in lenses at each end and a number of projectors and lenses mounted on and around the truss.

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