GetAClass - Physics
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277 回視聴 ・ 20いいね ・ 2025/05/15
What is an “equation of time”?
The length of solar days varies throughout the year due to the irregularity of the Earth's motion along the elliptical orbit and the tilt of the Earth's axis with respect to the plane of the orbit. The time equation describes the deviation of the true solar time from the mean solar time.
Keywords: mean solar day, true solar day, ecliptic, equinox, solstice, perihelion, aphelion, eccentricity, solar analemma; time equation, ecliptic, equinox, solstice, solar analemma.
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