Stand out above the crowd
Stand out above the crowd :
This is NGC 2005. It’s a glittery star cluster – a globular cluster – and it’s kinda weird. NGC 2005’s stars have a chemical composition that is distinct from the stars around it in the Large Magellanic Cloud (LMC), the Milky Way’s largest satellite galaxy.
This suggests that the LMC underwent a merger with another galaxy somewhere in its history. That other galaxy has long-since merged and otherwise scattered, but NGC 2005 remains as an ancient witness to the merger.
Globular clusters are large and dense, containing several thousand to millions of stars all formed from a shared nebula. These clusters are stable and contain some of the oldest known stars in a galaxy, so they’re an excellent laboratory to study galaxy evolution.
Image description: A globular cluster that looks like a very dense, ball-shaped collection of many shining stars in colors of white, yellow-orange, and blue. Some stars appear a bit larger and brighter than others, with the brightest having faint cross-shaped diffraction spikes. The cluster’s stars are scattered mostly uniformly, with their density increasing toward the cluster’s core where they merge into a strong, bright-white glow.
Credit: NASA
#NASA #Hubble #Stars #MilkyWay #Galaxy
[ INFORMATION DATA: 15 June 2024 ]
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