Messier 22 (M22) is a globular cluster located near the Milky Way bulge, the tightly packed group of stars near the galactic centre. The cluster lies in the constellation Sagittarius. It is one of the brightest globular clusters in the sky and was one of the first objects of this kind to be discovered and studied.
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Messier 20 (M20), also known as the Trifid Nebula, is a famous star-forming region located in the constellation Sagittarius. The nebula’s designation in the New General Catalogue is NGC 6514. The name Trifid refers to its three-lobed appearance. Messier 20 consists of several different objects: an emission nebula, a reflection nebula, a dark nebula and an open star cluster.
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Messier 19 (M19) is a globular cluster located in the southern constellation Ophiuchus. The cluster has an apparent magnitude of 7.47 and lies at a distance of 28,700 light years, or 8,800 parsecs, from Earth. It has the designation NGC 6273 in the New General Catalogue.
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Messier 17 (M17), also known as the Omega Nebula, is a famous star-forming nebula located in the southern constellation Sagittarius. The diffuse emission nebula lies near the constellation’s northern border with Scutum, at a distance of 5,000 to 6,000 light years from Earth. It has an apparent magnitude of 6.0.
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Messier 16 (M16), the famous Eagle Nebula, is a star-forming nebula with a young open star cluster located in Serpens. M16 lies near the borders with the constellations Sagittarius and Scutum. The nebula is best known for the Pillars of Creation region, three large pillars of gas famously photographed by Hubble in 1995.
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Messier 15 (M15), also known as the Great Pegasus Cluster, is a globular cluster located in the northern constellation Pegasus. The cluster has an apparent magnitude of 6.2 and lies at a distance of 33,600 light years (10,000 parsecs) from Earth. It has the designation NGC 7078 in the New General Catalogue.
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Messier 14 (M14) is a globular cluster located in the southern constellation Ophiuchus. The cluster lies at a distance of 30,300 light years from Earth and has an apparent magnitude of 7.6. It has the designation NGC 6402 in the New General Catalogue.
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