星系

see 恆星系|恒星系[heng2 xing1 xi4]

star / heavenly body / satellite / small amount

to connect / to relate to / to tie up / to bind / to be (literary)

system / department / faculty

to tie / to fasten / to button up

to connect / to arrest / to worry

Andromeda galaxy M31

Andromeda galaxy M31

stellar system / galaxy

spiral galaxy

galactic disc

barred spiral galaxy

extragalactic star system / galaxy (not including our Galaxy)