The itsy-bitsy satellite galaxy is named Andromeda XXXV and sits about 3 million light-years from Earth.
The teams findings werepublishedthis week in The Astrophysical Journal Letters.
Its like having a perfectly functional human being thats the size of a grain of rice.
The smallest, dimmest galaxy orbiting Andromeda to date.Image: CFHT/MegaCam/PAndAS (Principal investigator: Alan McConnachie; Image processing: Marcos Arias
Andromeda XXXV is only about 20,000 times more massive than our Sunvery small, even for a satellite galaxy.
The researchers observed Andromeda XXXV with the Hubble Space Telescope.
Most of the Milky Way satellites have very ancient star populations.
But for several billion years thereafter, the galaxy continued to form stars.
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