Close-up view of the globular star cluster Messier 54

This video gives a close-up view of an image from the VLT Survey Telescope at ESO’s Paranal Observatory in northern Chile showing the globular cluster Messier 54. This cluster looks very similar to many others, but it has a secret. Messier 54 doesn’t belong to the Milky Way, but actually is part of a small satellite galaxy, the Sagittarius Dwarf Galaxy. This unusual parentage has allowed astronomers to use the Very Large Telescope (VLT) to test whether unexpectedly low levels of the element lithium are also found in stars outside the Milky Way.

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ESO

Videosta

Tunnistus:eso1428b
Julkaisupäivä:10. syyskuuta 2014 12:00
Vastaavat julkaisut:eso1428
Kesto:28 s
Frame rate:30 fps

Kohteesta

Nimi:M 54
Kategoria:Star Clusters

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