NGC 2127 (also ESO 57-SC45) is a magnitude +11.6 open star cluster located in the constellation Dorado.
The cluster was discovered by British astronomer John Herschel using a 47.5 cm (18.7 inch) reflecting telescope at Feldhausen, Claremont, Cape Town, on the 23rd December 1834.
Right Ascension 05h 51m 22s, Declination -69° 21' 41"
