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| | Star - Facts, Information, and Encyclopedia Reference article |
 | | However, these have a much lower density than the Sun. |
 | | One of the most massive stars known is η Carinae, with 100–150 times as much mass as the Sun. |
 | | Recent work by Donald Figer, an astronomer at the Space Telescope Science Institute in Baltimore, Maryland, suggests that 150 solar masses is the upper limit of stars in the current era of the universe. |
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