William Herschel

markarian's chain, markarian's galaxy chain

Markarian’s Chain

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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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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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