Strebe wikimedia commons 21 sun can be at your zenith

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Unformatted text preview: cle Monday, October 22, 12 The four seasons are characteristic of middle latitudes (like Urbana) The tropics are regions where the Sun can be directly overhead (unlike Urbana) The polar regions are regions where Sun can be circumpolar (i.e. midnight Sun). Strebe, Wikimedia Commons 21 Sun can be at your zenith in the tropics... The Sun’s daily paths at the equator: Tauʻolunga, Wikimedia Commons On the solstices On the equinoxes Monday, October 22, 12 At the equator, celestial objects rise straight up from the horizon. So when the Sun rises due east on the equinoxes, it rises directly overhead. Even on the solstices, the Sun is still high in the sky at noon. 22 Seasons in the Tropics: Rainy and Dry The Tropical Rain Belt ‣ ‣ Sun is always high in the sky - HOT! Two seasons in the tropics: rainy and dry NASA Northern tropics rainy season: April - September ‣ Southern tropics rainy season: October - March ‣ Monday, October 22, 12 23 Seasons in the Polar Regions Summer solstice Winter solstice In summer, northern polar regions (Arctic) experience polar day (24 hr Sun) In winter, northern Monday, October 22, 12 polar regions experience polar night (24 hr darkness) 24 In the Arctic (northern polar regions), around the Summer Solstice, the Sun’s daily path is such that it does not set, a phenomenon known as polar day. Around the Winter Solstice in the Arctic, the Sun does not rise above the horizon - polar night. In the Antarctic (southern polar regions), polar day is experienced around the December Solstice (which is southe...
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This note was uploaded on 10/23/2013 for the course ASTR 100 taught by Professor Dunne during the Fall '12 term at University of Illinois, Urbana Champaign.

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