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Keyword: massimodifusco

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  • Astronomy Picture of the Day - Globular Star Cluster NGC 6752

    10/25/2024 1:19:24 PM PDT · by MtnClimber · 15 replies
    NASA ^ | 25 Oct, 2024 | Image Credit & Copyright: Massimo Di Fusco, Aygen Erkaslan
    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, 47 Tucanae, and Messier 22 as the fourth 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 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...
  • Astronomy Picture of the Day - Millions of Stars in Omega Centauri

    03/28/2024 1:12:27 PM PDT · by MtnClimber · 21 replies
    NASA ^ | 28 Mar, 2024 | Image Credit & Copyright: Massimo Di Fusco and Mirco Turra
    Explanation: Globular star cluster Omega Centauri, also known as NGC 5139, is 15,000 light-years away. The cluster is packed with about 10 million stars much older than the Sun within a volume about 150 light-years in diameter. It's the largest and brightest of 200 or so known globular clusters that roam the halo of our Milky Way galaxy. Though most star clusters consist of stars with the same age and composition, the enigmatic Omega Cen exhibits the presence of different stellar populations with a spread of ages and chemical abundances. In fact, Omega Cen may be the remnant core of...