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Messier 55

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science2 years ago•3 min saved

Hubble captures stunning image of glittering star cluster.

NASA has released a new image of Messier 55, a globular cluster in the constellation Sagittarius, taken by the Hubble Space Telescope. The image shows the cluster as a glittering spread of jewels, with individual stars visible due to Hubble's clear view from low-Earth orbit. The cluster contains around 100,000 stars, including blue stragglers, which appear bluish and seem younger than other stars around them. The cluster was first spotted in 1752 and was recorded in Charles Messier's catalog of nebulae and star clusters.

via Mashable|

#astronomy #globular-cluster #hubble-space-telescope

astronomy2 years ago•1 min saved

Stunning Hubble Image Reveals Dazzling Messier 55 Star Cluster.

The Hubble Space Telescope has captured a new image of Messier 55, a loosely concentrated globular star cluster located about 20,000 light-years away. The cluster appears spherical due to the intense gravitational attraction between its stars. While ground-based telescopes can also resolve individual stars in M55, Hubble's clear view above Earth's atmosphere allows for a better resolution. The cluster contains an estimated 100,000 stars with 55 variable stars, and is found in the southern part of the constellation Sagittarius.

via Fox News|

#astronomy #globular-star-cluster #gravitational-attraction