Westerlund 2 (Gum 29), star cluster in Carina. Westerlund 2 is remarkable for the presence of one of the most massive stellar sy

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Westerlund 2 (Gum 29), star cluster in Carina. Westerlund 2 is remarkable for the presence of one of the most massive stellar systems known, WR20a, seen as an eclipsing binary system.

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Photo credit: © Robert Gendler/Stocktrek Images / Alamy / Afripics
License: Royalty Free
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