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Westerlund 1造句

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Luckily for him, Westerlund 1 also contains a double star named W13.

Westerlund 1造句

In the case of Westerlund 1, that birthday is reckoned to have been between 3.5m and 5m years ago.

They stumbled on it in a star cluster called Westerlund 1, which is located 16,000 light-years from Earth.

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