extragalactic system; galaxy outside the Milky Way
Meanings
2 senses · 7 examplesnoun
extragalactic system; galaxy located outside the Milky Way
formalA technical term in astronomy, often referred to simply as a 'galaxy' in English. The Chinese term emphasizes its location 'outside the River' (a poetic name for the Milky Way).
Astronomers are observing a distant extragalactic system.
The Hubble Telescope has taken photos of many extragalactic galaxies.
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The Andromeda Galaxy is one of the closest extragalactic systems to us.
Research has found that this extragalactic galaxy is accelerating away from the Milky Way.
There are billions of extragalactic galaxies in the universe.
noun
galaxy that is comparable in scale to the Milky Way
formalThis sense emphasizes the comparable size and structure to our own galaxy. Many '河外星系' are spiral or elliptical galaxies like the Milky Way.
That extragalactic galaxy is very similar in size and structure to the Milky Way.
The scientists' goal is to find extragalactic galaxies similar to the Milky Way.