John Herschel

virgo cluster of galaxies,virgo galaxy cluster,virgo-coma cluster

Virgo Cluster

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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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m109,m109 galaxy,ngc 3992

Messier 109

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Messier 109 (M109) is a barred spiral galaxy located in the constellation Ursa Major.

The galaxy lies at a distance of 83.5 million light years and has an apparent magnitude of 10.6. It has the designation NGC 3992 in the New General Catalogue.
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m106,m106 galaxy,ngc 4258,spiral galaxy

Messier 106

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Messier 106 (M106) is a spiral galaxy located in the constellation Canes Venatici, the Hunting Dogs.

M106 lies at a distance of 23.7 million light years from Earth and has an apparent magnitude of 9.1. It has the designation NGC 4258 in the New General Catalogue.
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m103,open cluster m103,ngc 581

Messier 103

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Messier 103 (M103) is an open star cluster located in the northern constellation Cassiopeia.

The cluster lies at a distance of 10,000 light years from Earth and has an apparent magnitude of 7.4. Its designation in the New General Catalogue is NGC 581.
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