Chronology Current Month Current Thread Current Date
[Year List] [Month List (current year)] [Date Index] [Thread Index] [Thread Prev] [Thread Next] [Date Prev] [Date Next]

Re: planetary orbits

Dear Justin,

You can develop an activity based on Ticho Braha original observation on Mars, which were used by Kepler in discovering his two first laws.

You can find more information at:

Wilson C. (1972). How did Kepler discover his first two laws?
Scientific American, Vol 226 Mach 1972 pp. 96-106.

Lab Project- The Orbit of Mars. Sky and Telescope, October 1983. pp. 90-93.

Roni Mualem
Abin High School
Israel