Omega Centauri (ω Cen, NGC 5139, or Caldwell 80) is a globular cluster in the constellation of Centaurus that was first identified as a non-stellar object by Edmond Halley in 1677. Located at a distance of 17,090 light-years (5,240 parsecs), it is the largest known globular cluster in the Milky Way at a diameter of roughly 150 light-years. [10] It is estimated to contain approximately 10 ...

2024年8月23日 · Caldwell 80, also known as NGC 5139 and commonly called Omega Centauri, is home to around 10 million stars. Located about 17,000 light-years away from Earth toward the Centaurus constellation, the cluster has a diameter of about 450 light-years.

2024年6月2日 · Omega Centauri (ω Centauri) is a bright globular cluster located approximately 17,090 light-years away in the southern constellation Centaurus. With an apparent magnitude of 3.9, the cluster is easily visible to the unaided eye on a clear night. It is the largest and most massive globular cluster in the Milky Way galaxy.

半人马座ω，又称ngc 5139。 是一个曾被误认为恒星，环绕着银河系的球状星团。 半人马座ω是银河系内已知最大的球状星团，于1677年被爱德蒙·哈雷发现，也是迄今所知最大的，且唯一能以肉眼看见的球状星团。

The globular cluster NGC 5139 is located in the constellation Centaurus and it is visible to the naked eye. At a declination of -47° the object is not visible from Europe. On 13 April it in opposition with the Sun and is therefore highest in the sky at around midnight.

2022年7月4日 · 半人马座欧米伽星团（半人马座ω球状星团，又名ngc 5139）是半人马座的一个古老的球状星团，古人很早就发现了这个星团的存在，但是一直把它当做一颗普通的恒星，半人马座欧米伽星团距离我们有17090光年，是银河系已知的质量最大的球状星团，直径大约为150 ...

2023年3月16日 · 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.

2024年7月11日 · Also known as NGC 5139, at a distance of 15,000 light-years 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 ...

2019年8月24日 · Explanation: Globular star cluster Omega Centauri, also known as NGC 5139, is some 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.

The Milky Way flows through this celestial expanse whose wonders also include the closest star system to the Sun, Alpha Centauri, and the largest globular star cluster in our galaxy, Omega Centauri (aka NGC 5139). This sharp telescopic view of Omega Centauri shows off the central regions of the cluster of about 10 million stars.