The historic first image of a black hole was released by the Event Horizon Telescope (EHT) Collaboration on April 10, 2019. An international team of scientists used observations with the Event Horizon Telescope, a worldwide network of eight ground-based radio telescopes, to capture an image of the supermassive black hole at the heart of the supergiant elliptical galaxy Messier 87 (Virgo A).
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The Virgo Cluster is the closest large cluster of galaxies to the Milky Way. With over a thousand known members, the cluster spans an area of the sky about 5 by 3 degrees in size. While some of the most prominent members can be seen in smaller instruments, a 6-inch telescope will reveal about 160 galaxies in this region on a clear night.
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Messier galaxies M84 and M86 are part of Markarian’s Chain, a striking stretch of galaxies that lie along a curved line near the heart of the Virgo Cluster. The string of galaxies – which also includes NGC 4477, NGC 4473, NGC 4461, NGC 4458, NGC 4438 and NGC 4435 – occupies more than a full degree on the border between Virgo and Coma Berenices and can be seen in an 8-inch reflector on a clear, dark night.
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Messier 92 (M92) is a globular cluster located in the northern constellation Hercules. The cluster lies at a distance of 26,700 light years from Earth and has an apparent magnitude of 6.3. Its designation in the New General Catalogue is NGC 6341.
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Messier 90 (M90) is a spiral galaxy located in the constellation Virgo. It is a member of the Virgo Cluster. M90 lies at a distance of 58.7 million light years from Earth and has an apparent magnitude of 10.26. Its designation in the New General Catalogue is NGC 4569.
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Messier 89 (M89) is an elliptical galaxy located in the Virgo Cluster, in the constellation Virgo. The galaxy lies at an approximate distance of 50 million light years and has an apparent magnitude of 10.73. Its designation in the New General Catalogue is NGC 4552.
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Messier 88 (M88) is a spiral galaxy located in the Virgo Cluster, in the constellation Coma Berenices. The galaxy lies at an approximate distance of 47 million light years and has an apparent magnitude of 10.4. It has the designation NGC 4501 in the New General Catalogue. Messier 88 occupies an area of 6.9 by 3.7 arc minutes of apparent sky, which corresponds to a spatial extension of 105,000 light years.
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