dwarf spheroidal galaxy

短语

词形变化

dwarf spheroidal galaxies 复数 dwarf spheroidal galaxies

别名

dSph

释义与例句

n.
  1. 1.

    A faint galaxy, devoid of gas, having a higher than normal proportion of dark matter; especially those that orbit the Milky Way and Andromeda

    天文

    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.