The New General Catalogue of Nebulae and Clusters of Stars (abbreviated as NGC) is a catalogue of deep-sky objects compiled by John Louis Emil Dreyer in 1888. The NGC contains 7,840 objects, known as the NGC objects. It is one of the largest comprehensive catalogues, as it includes all types of deep space objects, including galaxies, star clusters, emission nebulae and absorption nebulae.
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NGC 5533
NGC 5533 is an unbarred spiral galaxy in the constellation Boötes. It was discovered by the astronomer William Herschel on May 1, 1785. It has a regular structure, with one tightly wound spiral; its disk is inclined about 53 degrees towards the line of sight. It is a member of the NGC 5557 Group, along with several other galaxies.
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Wikipedia Page: NGC 5533
NGC 5533 at In-The-Sky website