Messier 42: Orion Nebula
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 13: Hercules Globular Cluster
Messier 13 (M13), also known as the Great Globular Cluster in Hercules, is a globular cluster located in Hercules constellation. It is one of the brightest and best known globular clusters in the northern sky. The cluster has an apparent magnitude of 5.8 and lies at a distance of 22,200 light years, or 6,800 parsecs, from Earth. Its designation in the New General Catalogue is NGC 6205.
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Messier 7: Ptolemy’s Cluster
Messier 7 (M7), also known as Ptolemy’s Cluster, is a bright open cluster in Scorpius constellation. The cluster lies at an approximate distance of 980 light years from Earth. It has the designation NGC 6475 in the New General Catalogue. With a visual magnitude of 3.3 and an apparent diameter of 80 arc minutes – more than twice the apparent size of the full Moon – Ptolemy’s Cluster is an easy naked-eye target.
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