How do we measure the length of a year?
By SoliloquyFrom boclips.com
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The earth takes one year to orbit the sun but we can measure the length of a year in several ways. If I were to ask (and I do) how would you measure the length of a year? In reference to distant stars? By the time between two closest approaches of the Earth's orbit? By the time between two equinoxes? By keeping track of the phases of the moon?
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Explainer
Physical Sciences
Physics
Geography and Earth Science
Astronomy
Advanced Secondary
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