dwarf spheroidal galaxy

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dwarf spheroidal galaxy (plural dwarf spheroidal galaxies)

  1. (astronomy) A faint galaxy, devoid of gas, having a higher than normal proportion of dark matter; especially those that orbit the Milky Way and Andromeda
    • 1994 Beam Line: Fall Winter 1994
      The inventory keeps growing, and the latest recruit is a dwarf spheroidal galaxy, meaning no gas and not many more than 106-7 stars, that has the bad luck to be almost on the far side of the galactic centre from us.

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