“Westerlund 1”可以造什么句，Westerlund 1造句

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

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

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