英语词汇“globular cluster”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	globular cluster
释义	globular cluster noun Astronomy A large compact spherical star cluster, typically of old stars in the outer regions of a galaxy.Be warned that first-timers can find it difficult to appreciate galaxies, globular clusters, and planetary nebulae.... The oldest stars, which lie inside globular clusters that orbit our galaxy, are estimated to be at least 12 billion years old. In the 1900s American astronomer Harlow Shapley studied the distribution of globular clusters in our galaxy.
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