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Explanation: After the Crab Nebula, M1, this giant star cluster is the second entry in 18th century astronomer Charles Messier's famous list of things with are not comets. M2 is one of the largest globular star clusters now known to roam the halo of our Milky Way galaxy. Though Messier originally described it a nebula without stars, this stunning Hubble image resolves stars across the central 40 light-years of M2. Its population of stars numbers close to 150,000, concentrated within a total diameter of around 175 light-years. About 55,000 light-years distant toward the constellation Aquarius, this ancient denizen of the Milky Way, also known as NGC 7089, is 13 billion years old.
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NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: M 2 - globular cluster
Publications with words: M 2 - globular cluster
See also:
- APOD: 2025 December 28 Á NGC 1898: Globular Cluster in the Large Magellanic Cloud
- APOD: 2025 November 26 Á Globular Cluster M15 Deep Field
- APOD: 2025 September 5 Á 47 Tucanae: Globular Star Cluster
- APOD: 2025 August 14 Á M13: The Great Globular Cluster in Hercules
- APOD: 2025 July 26 Á Globular Cluster Omega Centauri
- NGC6366 vs 47 Ophiuchi
- Messier 2