1A10.41 - Geochron

Code Number:
Demo Title:
Sun Lit Portion of the Earth
Area of Study:
Geochron Clock.

See also Geochron/Analemma 1A10.41/8A10.41 in Astronomy and Analemma 8A10.41 in Astronomy.

You can see the Sun lit portion of the Earth at any time or season.

  • William Baird, Jeffery Secrest, Clifford Padgett, Wayne Johnson, and Claire Hagrelius, "Smartphones and Time Zones", TPT, Vol. 54, #6, Sept. 2016, p. 351.
  • James Brimhall, "The Varying Lengths of Solar Days", TPT, Vol. 34, #6, Sept. 1996, p. 351.
  • Anna Sajina, "On Ships, Trains, and the Equation of Time", Physics Today, Vol. 61, #11, Nov. 2008, p. 76.
  • Janice VanCleave, "15, Time Zones", Geography for Every Kid: Easy Activities that Make Learning Geography Fun", p. 135.
  • Stan Gibilisco, "The Shadow Puzzle", More Puzzles, Paradoxes and Brain Teasers, p. 16.

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