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Old 20-April-2008, 09:17 PM
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Robert Tulip Robert Tulip is offline
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Quote:
Originally Posted by Nowhere Man View Post
Where did all of those significant digits come from? In physics, your answer can only be as precise as the least precise of the numbers used to obtain it. And remember, precision is not the same as accuracy. Fred
As I explained, the solar pulse is a near-constant. The nine digits given are derived as the average SSB pulse for the 73 main stationary points from 1500-2099 (defined as period between similar wave peaks and troughs). These pulse points are almost all within one year of my magic number, with a quarter of them within 0.1 years. The source is NASA JPL ephemeris, which I understand is very precise and accurate for this dataset. I will analyse the data to quantify the rate of change in this number since 1500.

Last edited by Robert Tulip; 20-April-2008 at 10:24 PM..