sidereal year
noun
plural sidereal years
: the time in which the earth completes one revolution in its orbit around the sun measured with respect to the fixed stars : 365 days, 6 hours, 9 minutes, and 9.5 seconds of mean time
The light-year is defined as the distance light travels in 1 sidereal year …—
William D. Johnstone
William D. JohnstoneDictionary Entries Near sidereal year
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“Sidereal year.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sidereal%20year. Accessed 21 Dec. 2024.
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