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Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

See Explanation. Clicking on the picture will download the highest resolution version available.

Good Morning Moon

Explanation: Yesterday, the Moon was New . But on January 9, early morning risers around planet Earth were treated to the sight of an old Moon, low in the east as the sky grew bright before dawn . Above the city of Saarburg in Rhineland-Palatinate, western Germany, this simple snapshot found the waning Moon's sunlit crescent just before sunrise. But also never wandering far from the Sun in Earth's sky , inner planets Venus and Mercury shared the cold morning skyview . In the foreground are the historic city's tower and castle with ruins from the 10th century.

Date January 12, 2024
Credit Image Credit & Copyright: Michael Luy , Trier Observatory, TWAN
Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
A service of: ASD at NASA / GSFC,
NASA Science Activation & Michigan Tech. U.