22/03/2023
Our recent image of the Omega Centauri star cluster in the southern hemisphere was Nasa Astronomy Picture of the Day a few days ago.
APOD: Millions of Stars in Omega Centauri (2023 Mar 16)
Image Credit & Copyright: Neil Corke, Heaven's Mirror Observatory
https://apod.nasa.gov/apod/ap230316.html
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 a small galaxy merging with the Milky Way. Omega Centauri's red giant stars (with a yellowish hue) are easy to pick out in this sharp, color telescopic view.
https://www.astrobin.com/users/NeilCorke/
Starship Asterisk* • APOD Discussion Page
http://asterisk.apod.com/discuss_apod.php?date=230316