A piece of M31

About this image

Part of the Andromeda Galaxy, M31, seen through a narrow filter near, but not at, the H-alpha emission line of ionized hydrogen.

More: galaxies page, spiral galaxies page, messier page, WIYN galaxies page, WIYN spiral galaxies page, WIYN messier page.

Minimum credit line: Jay Gallagher (U. Wisconsin)/WIYN/NOAO/NSF

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