Giovanni Battista Hodierna

Giovanni Battista Hodierna

m47,ngc 2422

Messier 47

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Messier 47 (M47) is a bright open star cluster located in the southern constellation Puppis. The cluster lies at a distance of 1,600 light years from Earth and has an apparent magnitude of 4.2. It has the designation NGC 2422 in the New General Catalogue.
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messier 45,m45,seven sisters

Messier 45: Pleiades

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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 averageĀ  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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orion nebula

Messier 42: Orion Nebula

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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 Orion Nebula is one of the brightest nebulae in the sky and is visible to the naked eye. It lies at a distance of 1,344 light years from Earth and is the nearest stellar nursery to Earth. The nebula has the designation NGC 1976 in the New General Catalogue.
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m41,open cluster in canis major,ngc 2287

Messier 41

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Messier 41 (M41) is a bright open star cluster located in Canis Major constellation. It lies near Sirius, the brightest star in the sky. Messier 41 has an apparent magnitude of 4.5 and lies at an approximate distance of 2,300 light years from Earth. It has the designation NGC 2287 in the New General Catalogue.
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m38,starfish cluster

Messier 38: Starfish Cluster

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Messier 38 (M38), also known as the Starfish Cluster, is an open star cluster located in the northern constellation Auriga. The cluster lies at a distance of 4,200 light years from Earth. With an apparent magnitude of 7.4, it is invisible to the naked eye. M38 has the designation NGC 1912 in the New General Catalogue.
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m37,open cluster,star cluster

Messier 37

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Messier 37 (M37) is an open cluster in the constellation Auriga. It has the designation NGC 2099 in the New General Catalogue. M37 is the brightest, richest and largest of the three open clusters in this constellation that were catalogued by Messier. It has an apparent magnitude of 6.2 and lies at a distance of 4,511 light years from Earth.
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m36,pinwheel cluster

Messier 36: Pinwheel Cluster

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Messier 36 (M36), also known as the Pinwheel Cluster, is an open cluster located in the northern constellation Auriga, the Charioteer. The cluster occupies an area of 12 arc minutes in the sky, corresponding to a linear extension of 14 light years. It has an apparent magnitude of 6.3 and lies at a distance of 4,100 light years from Earth. M36 has the designation NGC 1960 in the New General Catalogue.
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m34,ngc 1039

Messier 34

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Messier 34 (M34) is a bright, large open cluster located in the northern constellation Perseus. The cluster lies at an approximate distance of 1,500 light years from Earth and has an apparent magnitude of 5.5. It has the designation NGC 1039 in the New General Catalogue.
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m8,lagoon nebula,ngc 6523

Messier 8: Lagoon Nebula

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Messier 8 (M8), also known as the Lagoon Nebula, is a large, bright emission nebula located in the constellation Sagittarius. The star-forming nebula has an apparent magnitude of 6.0 and lies at a distance of 4,100 light years from Earth. It has the designation NGC 6523 in the New General Catalogue.
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