The Aquarius Dwarf is an irregular galaxy (type ImV) and member of the Local Group. It lies about 3.2 million light-years from the Milky Way Galaxy in the constellation Aquarius (R.A. 20h 47m, Dec. -12° 51'). It was first catalogued in 1959 by the DDO survey.
Although the Aquarius Dwarf contains significant amounts of neutral hydrogen – the raw material needed to make new stars – it displays a very low level of star formation, which results in it being one of the least luminous members of the Local Group Local Group. It has been conjectured that this is connected to its spatial isolation.