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8A10.90 - Apparent Motion of the Sun

Code Number: 8A10.90
Demo Title: Apparent Motion of the Sun
Area of Study: Astronomy
References:
- Alejandro Gangui, "Whither Does the Sun Rove?", TPT, Vol. 49, # 2, Feb. 2011, p. 91.
- Earnest Zebrowksi, Jr. "Sunbeam Vectors and Scalar Products", TPT, Vol. 35, # 5, May 1997, p. 310.
- "Figuring Physics", TPT, Vol. 35, # 3, March 1997, p. 167.
- James Brimhall, "The Varying Lengths of Solar Days", TPT, Vol. 34, # 6, Sept. 1996, p. 351.
- Matthias Reinsch, "A Formula for the Number of Days Between the Winter Solstice and the Lastest Sunrise", AJP, Vol. 71, # 12, Dec. 2003, p. 1242.