NGC 1743 (also ESO 56-EN21) is a magnitude +11.26 emission nebula in the Large Magellanic Cloud located in the constellation Dorado.
The emission nebula 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 3rd August 1826.
Right Ascension 04h 54m 03.2s, Declination -69° 11' 57"
