galactic longitude


nounAstronomy.
  1. the angular distance in degrees measured eastward in the galactic plane from a radius drawn from the earth as center to the constellation Sagittarius.

Origin of galactic longitude

1
First recorded in 1910–15

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use galactic longitude in a sentence

  • The position of the stars is here generally given in galactic longitude (l) and latitude (b).

    Lectures on Stellar Statistics | Carl Vilhelm Ludvig Charlier
  • The fourth column gives the galactic square, the fifth and sixth columns the galactic longitude and latitude.

    Lectures on Stellar Statistics | Carl Vilhelm Ludvig Charlier