# Ephemerides

Celestial body position calculations for Sun, Moon, and planets.

## Analytical Models

::: brahe.sun_position

::: brahe.moon_position

## DE440 Ephemerides

::: brahe.initialize_ephemeris

::: brahe.sun_position_de

::: brahe.moon_position_de

::: brahe.jupiter_position_de

::: brahe.saturn_position_de

::: brahe.mars_position_de

::: brahe.uranus_position_de

::: brahe.neptune_position_de

::: brahe.venus_position_de

::: brahe.mercury_position_de

::: brahe.solar_system_barycenter_position_de

::: brahe.ssb_position_de

## See Also

- [Third-Body Perturbations](third_body.md) - Third-body acceleration calculations
- [Datasets: NAIF](../../learn/datasets/naif.md) - DE440s ephemeris data
- [Orbital Dynamics Module](index.md) - Complete orbit dynamics API reference