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/* RCSid $Id: sun.h,v 2.1 2013/08/09 16:51:15 greg Exp $ */
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/*
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* Header file for solar position calculations
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*/
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#ifndef _RAD_SUN_H_
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#define _RAD_SUN_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* sun calculation constants */
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extern double s_latitude;
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extern double s_longitude;
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extern double s_meridian;
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extern int jdate(int month, int day);
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extern double stadj(int jd);
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extern double sdec(int jd);
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extern double salt(double sd, double st);
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extern double sazi(double sd, double st);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _RAD_SUN_H_ */
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