lunartime.org

Ephemeris

An ephemeris is a computed table of the positions and motions of celestial bodies over time. Lunar time work depends on one: converting between lunar and barycentric coordinate times means integrating along the Moon's path, and that path comes from an ephemeris.

Other terms worth reading next.

All thirty entries are in the glossary of lunar timekeeping.

Sources

  1. Lunar Time Ephemeris LTE440: definitions, algorithm and performance — Xu Lu, Tian-Ning Yang, Yi Xie, Purple Mountain Observatory, Chinese Academy of Sciences — Astronomy & Astrophysics 704, A76, . Peer-reviewed. Verified .
  2. Definition and Realization of the International Lunar Reference Frame — Krzysztof Sosnica, Agnes Fienga, Dmitry Pavlov, Nicolas Rambaux, Radoslaw Zajdel — arXiv:2510.15484, . Peer-reviewed. Verified .

Last verified