Taiyin Ephemeris
Copyright 2026 Taiyin Ephemeris contributors

This product includes a truncated lunar theory coefficient table from
Shouxing Astronomical Ephemeris (寿星天文历, also known as 寿星万年历),
originally authored by 许剑伟.

Data or algorithms are sourced from Shouxing Astronomical Ephemeris
(数据或算法来源于寿星天文历).  The upstream project permits use of its code,
algorithms, and data subject to its own published provenance statement.
The frozen XL1 coefficient table is separately identified in
coefficients.py.  The DE441 residual correction and the non-lunar planetary
series were independently fitted by this project and are not Shouxing data.
