Tools Astrocalculator Equatorial/Galactic Coordinates module The Equatorial/Galactic Coordinates calculator module Equatorial/Galactic Coordinates This module converts from Equatorial coordinates to Galactic coordinates, and vice versa. Fill in the coordinate values in either the Galactic coordinates or Equatorial coordinates (J2000) section. Alternatively set the equatorial coordinates by selecting an object using the Find Object dialog. Then the complementary coordinates will be filled in. The module contains a batch mode for converting several coordinate pairs at once. You must construct an input file in which each line contains two values: the input coordinate pairs (either Equatorial or Galactic). Then specify which coordinates you are using as input, and identify the input and output filenames. Finally, press the Run button to generate the output file, which will contain the converted coordinates (Equatorial or Galactic; the complement of what you chose as the input values).