NGC 1836 (also ESO 56-SC61) is a magnitude +12.2 open star cluster 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 27th September 1826.
Right Ascension 05h 05m 34.5s, Declination -68° 37' 41"