At about 07:48 UTC and Phobos on August 18, 1877, at the US Naval Observatory in Washington, D
Text from Wikipedia, available under CC BY-SA 4.0.
- #wikipedia
- #event
At about 07:48 UTC and Phobos on August 18, 1877, at the US Naval Observatory in Washington, D
Text from Wikipedia, available under CC BY-SA 4.0.
Captured 2026-08-17 from Wikipedia. The archived copy is preserved so this citation survives link rot.