sidereal midnight

noun

Definition of sidereal midnight

: the instant when the March equinox crosses the lower meridian of a place — compare sidereal day

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Cite this Entry

“Sidereal midnight.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sidereal%20midnight. Accessed 23 Oct. 2020.

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