NGC 1722 (also ESO 56-SC12) is a magnitude +13.2 open star cluster and emission nebula located in the constellation Dorado.
The open cluster was discovered by Scottish astronomer James Dunlop using a homemade 9-foot 22.86 cm (9 inch) f/12 speculum Newtonian reflector at Paramatta, New South Wales, Australia, on the 24th September 1826.
Right Ascension 04h 51m 50.7s, Declination -69° 23' 56"
