Sunday, December 21, 2014

Happy Winter Solstice in the Northern Hemisphere and Happy Summer Solstice in the Southern Hemisphere


View from my house on Prior Lake on 12/21/14
We only get the sun for a short time today. Where is it?


While the Southern Hemisphere enjoys its longest day of the year, the Northern Hemisphere see the sun follow its lowest and shortest path across the southern sky. For the next six months, the Northern Hemisphere days will gradually lengthen as the hemisphere begins to tilt back toward the sun. The Southern Hemisphere days will get gradually shorter as the hemisphere begins to tilt away from the sun.

Solstices occur two times a year, when the tilt of the Earth's axis is oriented directly towards or away from the Sun, causing the Sun to reach its northernmost and southernmost extremes. The name is derived from the Latin sol (sun) and sistere (to stand still), because at the solstices, the Sun stands still in declination; which means that its apparent movement north or south comes to a standstill.



The northern hemisphere’s winter solstice is the southern hemisphere’s summer solstice, and vice versa. The tilt of the earth also results in the sun disappearing below the horizon during winter in the Arctic and Antarctic and remaining above the horizon during the summer (the so-called “midnight sun”). Antarctica experiences around three almost sunless months during winter, with the winter solstice marking the mid-point of this period. 

Summer Solstice In Antarctica
https://www.youtube.com/watch?v=_CiWbrN4PrU

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