M21 - 8-million-year-old stars - Deep Sky Videos
Автор: DeepSkyVideos
Загружено: 2016-09-12
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Messier 21 (NGC 6531) provides an opportunity to discuss the age spread of stars in a cluster.
Featuring Professor Mike Merrifield.
More reading on this research: http://bit.ly/2c56JYs
More Messier Objects: http://bit.ly/MessierObjects
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The University of Nottingham
and The University of Sheffield.
Video by Brady Haran
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