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News Release Archive:

News Release 74 of 967

July 18, 2013 01:00 PM (EDT)

News Release Number: STScI-2013-25

Hubble Shows Link Between Stars' Ages and Their Orbits in Dense Cluster

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Video: Zoom into 47 Tucanae (Narrated)

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This video zooms in from a view of the southern constellation Tucana to the globular cluster 47 Tucanae, which sits 16,700 light-years away from Earth. 47 Tucanae is 10.5 billion years old and is one of the brightest of our Milky Way galaxy's more than 150 globular clusters. Astronomers used Hubble Space Telescope images to accurately measure the changes in positions of more than 30,000 stars in 47 Tucanae. Linking these stars' ages and their orbital dynamics allowed researchers to identify two distinct generations of stars in the cluster. The Milky Way's globular clusters are the surviving relics from our galaxy's formation, and this analysis offers scientists better insight into the early history of our galaxy.

Credit: NASA, ESA, and G. Bacon and M. Estacion (STScI)

Selected still images from this video (click to enlarge):


Release Videos

Zoom into 47 Tucanae (No Narration) Running Time: 30 seconds
Zoom into 47 Tucanae (Narrated) Running Time: 30 seconds