The possible Galactic Core of our Universe (photo)

A globular cluster is a spherical collection of stars (like our Sun) that orbits a galactic core as a satellite. Globular clusters are very tightly bound by gravity, which gives them their spherical shapes and relatively high stellar densities toward their centers 포레이저 다운로드.

Here is one of those globular clusters:

Messier 9, seen here in a recent image from the Hubble Space Telescope, is twice as old as our Sun, and made up of stars that are among the oldest in our galaxy 다운로드.

About 8 Billion years old, the more than 250,000 stars of Messier 9 are enriched with far fewer heavier elements than the Sun. Elements crucial to life on Earth, like oxygen and carbon, and the iron at Earth’s core are rare in Messier 9 다운로드.

via 다운로드. About 8 Billion years old, the more than 250,000 stars of Messier 9 are enriched with far fewer heavier elements than the Sun. Elements crucial to life on Earth, like oxygen and carbon, and the iron at Earth's core are rare in Messier 9 sharepoint designer 2007. Spotted with color, this image shows the wide range of temperatures in the stars of Messier 9, with redder stars being cooler, and bluer stars hotter." target="_blank">C|Net

 

Thx to Dave Shroeder

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