Explanation: Some 13,000 light-years away toward the southern constellation Pavo, the globular star cluster NGC 6752 roams the halo of our Milky Way galaxy. Over 10 billion years old, NGC 6752 follows clusters Omega Centauri and 47 Tucanae as the third brightest globular in planet Earth's night sky. It holds over 100 thousand stars in a sphere about 100 light-years in diameter. Telescopic explorations of the NGC 6752 have found that a remarkable fraction of the stars near the cluster's core, are multiple star systems. They also reveal the presence of blue straggle stars, stars which appear to be too young and massive to exist in a cluster whose stars are all expected to be at least twice as old as the Sun. The blue stragglers are thought to be formed by star mergers and collisions in the dense stellar environment at the cluster's core. This sharp color composite also features the cluster's ancient red giant stars in yellowish hues.

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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: globular cluster - star cluster - Sharovoe skoplenie - golubye brodyagi Publikacii so slovami: globular cluster - star cluster - Sharovoe skoplenie - golubye brodyagi
Sm. takzhe: Mess'e 4 Sharovoe zvezdnoe skoplenie NGC 6752 Ogromnoe sharovoe skoplenie v Gerkulese Molodoe zvezdnoe skoplenie NGC 1333 Sharovoe skoplenie ω Centavra Milliony zvezd v ω Centavra Sharovoe zvezdnoe skoplenie 47 Tukana Vse publikacii na tu zhe temu >>