Hello sundialists around the world!
Who can help me? I am looking for the algebraic relation between the Equation
of time and the eccentricity of the earth orbital. It will help me for
calculating this eccentricity with my own sun dial.
Chris Lusby Tailor gave me a nice hint with the Ptolemaios
Here are a few references in books, I'm sure there are others on the web:
Astronomical Algorithms by Jean Meeus, Second Edition, Chapter 28.
Explanatory Supplement to the Astronomical Almanac, Seidelmann et. al,
Section 9.311
Spherical Astronomy, by Robin Green, 1985, Section 10.6
On Sun, Feb 08, 2009 at 11:38:02AM -0800, Tom Kreyche wrote:
Here are a few references in books, I'm sure there are others on the web:
Astronomical Algorithms by Jean Meeus, Second Edition, Chapter 28.
Explanatory Supplement to the Astronomical Almanac, Seidelmann et. al,
Section