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* Use J2000 ecliptic (rather than equatorial) coordinates as starting point ↵David A. Madore2012-04-171-0/+1
| | | | | | for precession. We will assume that these are the coordinates returned by VSOP87.
* Use quaternions instead of 3*3 matrices to represent rotations.David A. Madore2012-04-031-4/+4
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* Equation of the origins/equinoxes.David A. Madore2012-03-271-1/+9
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* Nutation.David A. Madore2012-03-271-0/+73