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Saturday, July 5, 2008'♥ Doraemon

An open cluster and a globular cluster
Today you will be learning about star clusters(science).
Stars may look like they are scattered throughout the sky,but they hang together in clusters. This is because new stars are usually formed in groups, rather than singly. There are two main types of star clusters-open clusters and globular clusters.
Stars in open clusters sre usually bright and young.Stars in globular clusters are older, and are gathered more tightly than stars in an open cluster. Globular clusters can contain up to a million stars.
If you want to ask questions,please ask in comments. We will help you do some research and give you our best answer.

9:20 AM