Keck Observatory Mirror
Nov. 28, 2024
W. M. Keck Observatory - Wikipedia The Keck II telescope primary mirror. : r/AbsoluteUnits The primary mirror of the Keck Telescope - Stock Image - R118/0173 - Science Photo Library Keck Observatory Mirror
Nov. 28, 2024
W. M. Keck Observatory - Wikipedia The Keck II telescope primary mirror. : r/AbsoluteUnits The primary mirror of the Keck Telescope - Stock Image - R118/0173 - Science Photo Library Keck Observatory Mirror