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 436
NGC 436 is an open cluster located in the constellation Cassiopeia. It was discovered on November 3, 1787, by William Herschel. It was described by Dreyer as a "cluster, small, irregular figure, pretty compressed."
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Wikipedia Page: NGC 436
NGC 436 at In-The-Sky website