Summary
The NASA/ESA Hubble Space Telescope has captured this spectacular image of the Pegasus dwarf spheroidal galaxy, a satellite of the Andromeda galaxy.
The Pegasus dwarf spheroidal galaxy is located some 2.7 million light-years away in the constellation of Pegasus.
“The Andromeda galaxy, also known as Messier 31, is the Milky Way’s closest grand spiral galaxy neighbor, and is orbited by at least 13 dwarf satellites,” the Hubble astronomers said in a statement.
“The Pegasus dwarf spheroidal galaxy is one of these mini-galaxies.”“Dwarf spheroidal galaxies are the dimmest and least massive galaxies known,” they explained.
“This galaxy has been characterized as having a small amount of heavy elements and little of the gas needed to form another generation of stars — though more than many of the dwarf spheroidal galaxies within our Local Group of galaxies,” the astronomers said.