Authors: Wenceslao Segura González
There is widespread confusion about the concept of tropical year. Although it is correctly defined from the average length of the Sun, at the same time it is identified with the movement of the Sun with respect to the seasonal points. In this study, we distinguish between the tropical year, as it is commonly defined, and the seasonal year, or time between two consecutive passages of the Sun by a particular seasonal point. We found that the mean value of the possible four years seasonal averages (Spring, Summer, Autumn and Winter) coincides with the tropical year. We evaluated the variation of the seasonal years for an interval of time of a few thousands of years. And finally we estimated the durations of the various types of years in universal time units, adapting them for use in the calculation of the calendarists’ errors.
Comments: 11 Pages.
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[v1] 2013-11-30 09:52:44 (removed)
[v2] 2013-12-01 02:49:48 (removed)
[v3] 2014-01-29 05:53:26
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