Hubble dives into cosmic treasure trove

Hubble dives into cosmic treasure trove

Credit: ESA/Hubble & NASA, R. Cohen

This image from the NASA/ESA Hubble Space Telescope captures the glittering globular cluster NGC 6569 in the constellation Sagittarius. Hubble explored the heart of this cluster with both its Wide Field Camera 3 and Advanced Camera for Surveys, uncovering a glittering treasure trove of stars in this astronomical treasure trove.

Globular clusters are stable, closely connected clusters containing tens of thousands to millions of stars and are associated with all types of galaxies. The intense gravitational pull of these densely packed star clusters means that: globular clusters have a regular spherical shape with a densely populated center, as seen in the heart of this star-studded image.

This observation comes from an examination of globular clusters that lie close to the center of the Milky Way. Previous studies have avoided these objects because the dusty center of our galaxy blocks their light and changes the colors of the stars within it. The color of a star is especially important for: astronomers studying stellar evolutionand can give astronomers insight into their ages, compositions and temperatures.

The astronomers who proposed these observations combined data from Hubble with data from astronomical archives, allowing them to measure the ages of globular clusters, including NGC 6569. Their research also provided insight into the structure and density of globular clusters toward the center of the Milky Way.


Image: Hubble snips globular cluster Terzan 9


Quote: Hubble Dives Into Cosmic Treasury (2022, July 5) retrieved July 5, 2022 from https://phys.org/news/2022-07-hubble-delves-cosmic-treasure-trove.html

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