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 5281
NGC 5281 is an open cluster in the constellation Centaurus. It was discovered by Nicolas Louis de Lacaille in 1751-1752 from South Africa, and catalogued it as Lacaille I.7. NGC 5281 is located three and a quarter degrees southwest of Beta Centauri. Under dark skies, it is bright enough to be spotted with naked eye, appearing as a 6th magnitude star.
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Wikipedia Page: NGC 5281
NGC 5281 at In-The-Sky website