Globular Clusters

Globular clusters are large, spherical clusters of stars that are gravitationally bound to each other. They are some of the oldest structures in the universe, with ages of up to 13 billion years, and are thought to have formed early in the history of the Milky Way and other galaxies.

Globular clusters typically contain anywhere from tens of thousands to millions of stars, which are densely packed together in a region that is only a few dozen light-years across. The stars in globular clusters are typically very old, with low metal content and a relatively simple chemical composition.

One of the defining features of globular clusters is their spherical shape, which is due to the strong gravitational attraction between the stars. This shape is maintained over time as the stars in the cluster move around each other, interacting through gravity.
Intergalactic Wanderer - C25 - Caldwell 25 - NGC 2419

Caldwell 25 – Intergalactic Wanderer

What is the origin of the name 'Intergalactic Wanderer' for the globular cluster NGC 2419, also known as Caldwell 25? ...
M13 - Messier 13 - Melotte 150 - NGC 6205

Messier 13 – Hercules Globular Cluster

Messier 13 is an easily visible globular cluster of stars located in the constellation Hercules, approximately 25,100 light-years away ...
Messier 3 Global Cluster

Messier 3

Messier 3 is a globular cluster located in the constellation Canes Venatici, known for its dense arrangement of thousands of ancient stars ...
Messier 53 Global Cluster

Messier 53

Position of M53 Messier 53 is a globular cluster located in the constellation Coma Berenices. The exact coordinates of Messier 53 are Right Ascension 13h 12m 55.3s and Declination +18° 10′ 09″ (J2000), which means it is located approximately 2.5 degrees southeast of Diadem, the brightest star in the constellation. Overall, Messier 53 is relatively easy to find as it can appear as a small, hazy patch with the naked eye and is easily visible with a telescope. Unique facts One of the oldest globular clusters: Messier 53 is estimated to be around 220,000 years old, making it one of ...