Search Results: "Aphelion"

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• 12:04

  Precession Causing Perihelion to Happen Later

  558 views / 0 likes - added 9 years ago

  Clarifying the effect of axial precession on the calendar and the date of perihelion and aphelion More free lessons at: http://www.khanacademy.org/video?v=2o-Sef6wllg

• 02:52

  Why December Has The Longest Days

  463 views / 0 likes - added 8 years ago

  Subscribe to MinutePhysics! December has the longest solar days (noon-to-noon) because of the weird way a combination of the axial tilt of the earth and the eccentricity of its elliptical orbit conspire in December. Perihelion + Solstices = Long Days. Her

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