galactic year

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English[edit]

English Wikipedia has an article on:
Wikipedia

Noun[edit]

galactic year (plural galactic years)

  1. (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. (astronomy, by extension) The time taken for a celestial body to complete a quasi-orbit in a galaxy.

Synonyms[edit]

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