Our history photo of the week shows the 200-inch mirror as it looked in the Caltech Optical Shop May 13, 1939. The disc looks dramatically different from how it looked when it arrived three years earlier.
Tuesday, September 14, 2010
Palomar History Photo of the Week - September 14, 2010
Our history photo of the week shows the 200-inch mirror as it looked in the Caltech Optical Shop May 13, 1939. The disc looks dramatically different from how it looked when it arrived three years earlier.
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