#globular star clusters

[mystarypi-astronomy]

It seems like more people prefer clusters than nebulae so here is a collage of some of my best clusters! 

Here is a collection of some of my best cluster photos: Pleiades, Double Cluster, Butterfly Cluster, Omega Centauri, Sagittarius Globular Cluster, and Baade’s Window! ✨🌟🌠⭐🎆🎇🎊💫

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[brightestofcentaurus]

Messier 53

Messier 53 is a globular star cluster located about 60,000 light years away towards the constellation Coma Berenices. Globular clusters are a type of star cluster containing tens of thousands of stars bound together by gravity. They’re typically found on the edges of galaxies, and over 150 are found in the Milky Way alone.

Globular star clusters are older and larger than open star clusters, and usually contain stars born around the same time. Usually, this means the clusters contain more old, red stars. Messier 53 is unusual for its high number of blue stragglers, a type of rejuvenated star that appears bluer and brighter than its age would suggest. It’s thought that this may be the result of stellar collisions in the dense core of globular clusters.

Image and information from ESA.

[christinetheastrophysicist]

Hubble Uncovers Largest Known Population of Star Clusters

Peering deep into the heart of the massive galaxy cluster Abell 1689, NASA's Hubble Space Telescope has nabbed more than 160,000 globular clusters, the largest population ever seen.

The image at left, taken by Hubble's Advanced Camera for Surveys, shows the numerous galaxies that make up Abell 1689. The box near the center outlines one of the regions sampled by Hubble, containing a rich collection of globular clusters.

Read More.