globular cluster
IPA/ɡlˈɒbjʊlə klˈʌstə/
IPA/ɡlˈɑːbjʊlɚ klˈʌstɚ/
globular cluster — noun
1. A large, round group of thousands to millions of old stars that are held togethe
1.名詞B2
釋義
A large, round group of thousands to millions of old stars that are held together by gravity and orbit a galaxy as a single object, found mainly in the outer halo of a galaxy.
例句
Through a backyard telescope, Noa saw the bright core of globular cluster M13 in Hercules.
collocation: globular cluster + constellation designation
At the observatory, Aarav aimed the telescope at globular cluster M22 and sketched its unusually dense core.
Rafael pointed his telescope at globular cluster M15 and counted fifty stars near its core.
Kemi studied a globular cluster through the observatory telescope and noted its dense, round shape.