![]() If you want to dive into the astronomical details, check out this well-written explanation by Harvard-graduate Dr. This, combined with the Earth slightly changing the speed at which it revolves around the sun at different points throughout the year, is the simplest explanation for why the solstices generally don’t have the earliest and latest sunrises and sunsets.įrom there, the explanation gets quite complex. The Earth is closer to the sun in January (perihelion) than in July (aphelion) due to its elliptically shaped orbit. ![]() ![]() The primary reason the earliest and latest sunrises and sunsets don’t coincide with the solstices is best explained by the equation of time.įor starters, the Earth is not perfectly round, and neither is its orbit around the sun. Date of earliest sunset and latest sunrise in winter.
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