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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The Merope Nebula is a faint reflection nebula and suspected supernova remnant located in the Pleiades cluster (M45). The nebula surrounds the star Merope (23 Tauri), after which it gets its name. It has the designation NGC 1435 in the New General Catalogue.
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The Maia Nebula is a bright reflection nebula found in the Pleiades cluster (M45). The nebula has the designation NGC 1432 in the New General Catalogue. It occupies an area about 1.6 by 1.4 light years across.
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Messier 45 (M45), also known as the Pleiades or Seven Sisters, is a bright open star cluster located in the constellation Taurus, the Bull. The Pleiades cluster has an apparent magnitude of 1.6 and lies at an average distance of 444 light years from Earth. The cluster is also known as Melotte 22. It does not have an NGC designation.
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Messier 44 (M44), also known as the Beehive Cluster or Praesepe (the Manger), is an open star cluster in the constellation Cancer. Praesepe is a bright, large cluster with an apparent magnitude of 3.7. It lies at a distance of 577 light years from Earth. It has the designation NGC 2632 in the New General Catalogue.
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Messier 42 (M42), the famous Orion Nebula, is an emission-reflection nebula located in the constellation Orion, the Hunter. With an apparent magnitude of 4.0, the… Read More »Messier 42: Orion Nebula
Messier 39 (M39) is a large open cluster located in the constellation Cygnus, the Swan. The cluster has an apparent magnitude of 5.5 and lies at a distance of 824.4 light years from Earth. It has the designation NGC 7092 in the New General Catalogue.
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