Messier 2

Messier_2Messier 2 (aka M2) is about 37,500 light-years from Earth. It is roughly 175 light-years in diameter, one of the larger globular clusters known. It is 13 billion years old and one of the older globulars associated with the Milky Way Galaxy. M2 contains about 150,000 stars, including 21 known variable stars. Its brightest stars are red and yellow giant stars. Click the image to embiggen it. It’s 4k X 4k pixels, so, depending on your browser, a second click may be necessary to get it to full size.

Image Credit: NASA

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