NGC 1826 (also ESO 85-SC43) is a magnitude +13.3 open star cluster located in the constellation Dorado.
The 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. The cluster was rediscovered by John Herschel in December 1835.
Right Ascension 05h 05m 34.0s, Declination -66° 13' 52"