galactic year

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. {{lb|en|astronomy}} The time taken for the [[Solar System]] to orbit around the center of the [[Milky Way Galaxy]], estimated to be from 225 to 250 million years.
2. {{lb|en|astronomy|by extension}} The time taken for a [[celestial body]] to complete a [[quasi-orbit]] in a [[galaxy]].

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.