Messier 87 (also known as Virgo A or NGC 4486, generally abbreviated to M87) is a supergiant elliptical galaxy in the constellation Virgo that contains several trillion stars.

m87，即室女座a星系（也称为梅西耶87、m87或ngc 4486），常称之为“m87星系”。 M87位在室女座，是巨大的椭圆星系，也是银河系附近几个质量最大星系其中之一，拥有几项受瞩目的特性：第一，其球状星团数量特别多，M87星系里共含12,000个球状星团。

Sep 27, 2024 · The monstrous M87 is the dominant member of the neighboring Virgo cluster of galaxies, which contains some 2,000 galaxies. Discovered in 1781 by Charles Messier, this galaxy is located 54 million light-years away from Earth in the constellation Virgo. It has an apparent magnitude of 9.6 and can be observed using a small telescope most easily in ...

Jan 22, 2024 · This supermassive black hole, 6.5 billion times the mass of our Sun, resides at the center of the Messier 87 (M87) galaxy in the Virgo galaxy cluster, located 55 million light-years from Earth. The new image, like the old one, was captured by the Event Horizon Telescope (EHT), an array of radio telescopes stretching across the planet.

4 days ago · M87, giant elliptical galaxy in the constellation Virgo whose nucleus contains a black hole, the first ever to be directly imaged. M87 is the most powerful known source of radio energy among the thousands of galactic systems constituting the so-called Virgo Cluster.

室女a星系，又稱梅西耶87，簡稱m87，一名ngc 4486，是室女座的巨型橢圓星系，也是銀河系附近質量最大的星系之一。 此星系擁有幾項受矚目的特性，第一，其 球狀星團 數量特別多──M87星系裡共含12,000個球狀星團，參考之下，環繞銀河系的球狀星團數量為150-200 ...

Messier 87 (also known as M87, Virgo A or NGC 4486) is a supergiant elliptical galaxy. It was discovered in 1781 by the French astronomer Charles Messier, who catalogued it as a nebulous feature. The second brightest galaxy within the northern Virgo Cluster, it is about 16.4 million parsecs (53.5 million light-years) from Earth. [1][2]

M87星系黑洞是位于M87星系中心的巨大黑洞，为科学家利用位于夏威夷莫纳克亚的8.1米的弗雷德里克C吉列双子座望远镜在夏威夷发现的。 M87星系黑洞距离 太阳系 约5500万 光年。 其体积为太阳的680万倍，足以吞噬整个太阳系。 研究学者认为过去某段时间里，几百个小黑洞融合一体形成了这个巨大黑洞。 相比而言，银河系中心的黑洞只有这个M87黑洞的千分之一大小。 2019年4月10日，全球多地天文学家同步公布了黑洞照片。 该黑洞位于室女座一个 巨椭圆星系 M87的中 …

On April 10, 2019, the Event Horizon Telescope (EHT) unveiled the first-ever image of a black hole’s event horizon, the area beyond which light cannot escape the immense gravity of the black hole. That giant black hole, with a mass of 6.5 billion Suns, is located in the elliptical galaxy Messier 87 (M87).

Messier 87 is a large Elliptical Galaxy in the constellation of Virgo. Messier 87 is located approximately 55 million light-years away. The galaxy was discovered by Charles Messier, the French astronomer who lived between 1730 and 1817 in Paris. Charles indexed the galaxy in his catalogue with the ID of 87, hence its name.