Definition of galactic coordinate
: a member of a system of celestial coordinates based on the equatorial plane of the Milky Way galaxy
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“Galactic coordinate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/galactic%20coordinate. Accessed 20 May. 2022.
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Time Traveler for galactic coordinate
The first known use of galactic coordinate was in 1872
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