Galactic bulge
Central feature/region of a spiral galaxy
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Galactic bulge
Central feature/region of a spiral galaxy
In astronomy, a galactic bulge (or simply bulge) is a tightly packed group of stars within a larger star formation. The term almost exclusively refers to the group of stars found near the center of most spiral galaxies.
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From Wikipedia
In astronomy, a galactic bulge (or simply bulge) is a tightly packed group of stars within a larger star formation. The term almost exclusively refers to the group of stars found near the center of most spiral galaxies. Bulges were historically thought to be elliptical galaxies that happened to have a disk of stars around them, but high-resolution images using the Hubble Space Telescope have revealed that many bulges lie at the heart of a spiral galaxy. It is now thought that there are at least two types of bulges: bulges that are like ellipticals and bulges that are like spiral galaxies.
Text: Wikipédia, CC BY-SA 4.0. · Image: ESO/NASA/JPL-Caltech/M. Kornmesser/R. Hurt (CC BY 4.0) ·