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core
planetsephems
sideral_time.h
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/*
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Copyright (C) 2000 Liam Girdwood <liam@nova-ioe.org>
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Copyright (C) 2003 Fabien Chereau
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Copyright (C) 2010 Georg Zotti (parts)
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Library General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef _STELLASTRO_H
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#define _STELLASTRO_H
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#ifdef __cplusplus
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extern
"C"
{
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#endif
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/* Calculate mean sidereal time from date. */
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double
get_mean_sidereal_time (
double
JD);
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/* Calculate apparent sidereal time from date.*/
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double
get_apparent_sidereal_time (
double
JD);
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/* Calculate mean ecliptical obliquity in degrees. */
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double
get_mean_ecliptical_obliquity(
double
JDE);
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#ifdef __cplusplus
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}
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#endif
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#endif
/* _STELLASTRO_H */
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