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 864
NGC 864 is a star-forming intermediate spiral galaxy located in the Cetus constellation. It's also classified as an isolated galaxy on the AMIGA (Analysis of the Interstellar Medium of Isolated Galaxies) catalogue as CIG 96. Its discovery and first description was realized by William Herschel in October 25th, 1785 and the findings made public through his Catalogue of Nebulae and Clusters of Stars, published in 1786. Due to its diameter, declination and inclination, NGC 864 was selected in 2012 by a group of astronomers working at the Roque de los Muchachos Observatory as an object for kinematics study. Besides collecting data to help understand NGC 864's morphology, the objective of the project was to develop a method of flux-calibration for the new GHαFaS system on the William Herschel Telescope.
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Wikipedia Page: NGC 864
NGC 864 at In-The-Sky website