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John Louis Emil Dreyer

Markarian’s Chain

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markarian's chain, markarian's galaxy chain

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 102: Spindle Galaxy

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spindle galaxy,m102,ngc 5866

Messier 102 (M102), also known as the Spindle Galaxy, is an edge-on lenticular galaxy located in the northern constellation Draco. The galaxy lies at a distance of 50 million light years from Earth and has an apparent magnitude of 10.7. It has the designation NGC 5866 in the New General Catalogue.
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Messier 49

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m49,giant elliptical galaxy,ngc 4472

Messier 49 (M49) is an elliptical galaxy located in the southern constellation Virgo. The galaxy has an apparent magnitude of 9.4 and lies at a distance of 55.9 million light years from Earth. It has the designation NGC 4472 in the New General Catalogue.
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Messier 25

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m25,ic 4725

Messier 25 (M25) is a bright, prominent open cluster located in Sagittarius constellation. The cluster lies at a distance of 2,000 light years from Earth and has an apparent magnitude of 4.6. Its designation in the Index Catalogue is IC 4725.
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