hé​wài​xīng​xì

extragalactic galaxy

Senses

河外星系 hé​wài​xīng​xì extragalactic galaxy

A massive system of stars, gas, and dust located outside of our own Milky Way, such as an elliptical, spiral, or irregular galaxy.

References

same_as 河外星系/河外星系 河外星云/河外星雲
see 河外星系/河外星系 银河系/銀河系