Yerkes Observatory Astro4p6
Författare/Upphovsman:
Photo Credit: Yerkes Observatory
Kort länk:
Källa:
Upplösning:
450 x 354 Pixel (21685 Bytes)
Beskrivning:
Alvan Graham Clark and his assistant Carl Lundin (right) alongside of the 40-inch Lens.
Licens:
Public domain
Licenskommentaren:
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This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government, such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information. |  |
Mer information om licensen för bilden finns här. Senaste uppdateringen: Sat, 05 Oct 2024 00:39:29 GMT