Glossary term: Galactic Disk
Description: The galactic disk is the disk component of the Milky Way that contains stars, gas, and dust in circular coplanar motion around the galactic center. The galactic disk is thought to feature four spiral arms, where star formation is ongoing. The observable disk has a diameter of about 100,000 light years and a thickness of about 3000 light years.Related Terms:
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Term and definition status: This term and its definition is still awaiting approval
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