SunDiameter

delphimoon

Sun diameter

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Calculates the diameter of the sun

 

function Sun_Diameter(date:TDateTime): extended;

 

Description

Calculates the angular diameter of the sun. The value is given in angular seconds (1/3600 degrees).

 

The anguiar size is reciprocal to the distance of the earth from the sun.

 

Reference

This function is based upon chapter 25 (24) of "Astronomical Algorithms".