The Aquarius Dwarf galaxy is a dwarf galaxy and an irregular galaxy, that was first catalogued in 1959 by the DDO survey. Its most distinctive characteristic is that it is one of the few galaxies known to display a blueshift, as it is traveling towards the Milky Way at 137 km/s. Aquarius dwarf is also part of the Aquarius constellation.
Lee et al. 1999 firmly established AqrDIG as a member of the Local Group and derived a distance, using the tip of the red giant branch, of 950 ± 50 kpc. Its distance from the group's barycenter is also calculated to be 950 kpc, which means that AqrDIG is rather isolated in space. Compared to the even further away SagDIG, it is much less luminous.
Famous quotes containing the word dwarf:
“A dwarf who brings a standard along with him to measure his own size—take my word, is a dwarf in more articles than one.”
—Laurence Sterne (1713–1768)