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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.

Barnard 228: The Dark Wolf Nebula in Lupus

Explanation: These dark markings on the sky can just be found in silhouette against a rich, luminous background of stars. Seen toward the southern constellation of Lupus the Wolf, the dusty, obscuring clouds are part of the Lupus Molecular Cloud some 500 light-years distant. Packs of low mass stars are forming within them , from collapsing cores only visible at long infrared wavelengths . Still, colorful stars in Lupus add to this pretty galactic skyscape . It spans about 8 degrees, not far from the central Milky Way.

Date July 26, 2018
Credit Image Credit & Copyright: Gabriel Rodrigues Santos
Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
A service of: ASD at NASA / GSFC,
NASA Science Activation & Michigan Tech. U.