"This is the 100 inch (2.5 M.) Hooker Telescope at the Mount Wilson Observatory in Los Angeles County, California."
Ken Spencer, CC BY-SA 3.0, via Wikimedia Commons.
"This is the 100 inch (2.5 M.) Hooker Telescope at the Mount Wilson Observatory in Los Angeles County, California."
Ken Spencer, CC BY-SA 3.0, via Wikimedia Commons.