Explanation: Beneath the south pole of our Milky Way Galaxy lies a ball of over 100,000 stars. M2, the second object on Charles Messier's eighteenth century list of bright diffuse sky objects, is known as a globular cluster, and orbits the center of our Galaxy like nearly 200 other globular clusters left over from the early days of our universe. M2, pictured above, spans over 150 light-years, lies about 50,000 light-years away, and can be seen with binoculars towards the constellation of Aquarius. Determining the distances and ages to globular clusters like M2 constrains the scale and age of our entire universe.

Tomorrow's picture: Wheel of Stars

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
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NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Publikacii s klyuchevymi slovami: M 2 - globular cluster - Sharovoe skoplenie Publikacii so slovami: M 2 - globular cluster - Sharovoe skoplenie
Sm. takzhe: Sharovoe zvezdnoe skoplenie NGC 6752 Ogromnoe sharovoe skoplenie v Gerkulese Sharovoe skoplenie ω Centavra Milliony zvezd v ω Centavra Sharovoe zvezdnoe skoplenie 47 Tukana M15: plotnoe sharovoe zvezdnoe skoplenie NGC 2419: mezhgalakticheskii strannik Vse publikacii na tu zhe temu >>