galactic longitude

noun

: longitude in the system of galactic coordinates measured in degrees eastward from the point where the galactic equator crosses the celestial equator in the constellation Aquila

Word History

First Known Use

1872, in the meaning defined above

Time Traveler
The first known use of galactic longitude was in 1872

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Dictionary Entries Near galactic longitude

galactic latitude

galactic longitude

galactic noise

See More Nearby Entries 

Cite this Entry

“Galactic longitude.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/galactic%20longitude. Accessed 26 Nov. 2024.

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