WIYN 3.5-meter primary mirror at rest
About this image
The WIYN 3.5-meter primary mirror is resting on stands at the ground floor level of the NOAO grinding facility. This picture was taken from above with the hatch open, looking down into the grinding room (January 1990).
More: WIYN telescopes page.
Minimum credit line: NOAO/AURA/NSF
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