The Age of Westerlund 1 Revisited
Date
Image of young star cluster Westerlund 1 taken by the Hubble Space Telescope toward the southern constellation of the Altar. Westerlund 1 is home to some of the largest and most massive stars known, including four red supergiants, six yellow hypergiant stars, 24 Wolf-Rayet stars, and several more unusual stars that continue to be studied. Westerlund 1 is relatively close-by for a star cluster at a distance of 15,000 light years, giving astronomers a good laboratory to study the development of massive stars.
Credit
ESA/Hubble & NASA
Image Number
SCI2021_017
