= Galactic disc
{wiki=Galactic_disc}
The Galactic disc is the flat, rotating region of a galaxy that contains most of its stars, gas, and dust. It is typically where the majority of the galaxy's star formation occurs and is characterized by a high concentration of young stars and nebulae, as well as older stars. In spiral galaxies, the Galactic disc is distinctively structured into spiral arms that are regions of higher density where new star formation is actively taking place.
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