Licences and sources
Licences and sources
Everything this site computes from, and the terms it is used under.
| Component | Licence | Note |
|---|---|---|
| Skyfield | MIT | |
| jplephem | MIT | |
| pyerfa (ERFA) | BSD-3-Clause | |
| NumPy | BSD-3-Clause | |
| sgp4 | MIT | |
| certifi | MPL-2.0 | Weak copyleft, file-level. Compatible with Apache-2.0 for distribution; unmodified. |
| Fraunces | OFL-1.1 | |
| Manrope | OFL-1.1 | |
| Noto | OFL-1.1 | |
| FastAPI | MIT | |
| Starlette | BSD-3-Clause | |
| Uvicorn | BSD-3-Clause | |
| Jinja2 | BSD-3-Clause | |
| pydantic | MIT | |
| JPL DE442s | Public domain | Public domain, a work of the U.S. Government. |
| Swiss Ephemeris | AGPL-3.0 | Test oracle only. Never imported at runtime and never redistributed. |
Place data
This product includes data created by GeoNames, used under CC BY 4.0. It is modified: filtered to places carrying an IANA timezone, administrative and country codes joined to their names, and re-keyed with our own URL slugs. No change was made to the underlying facts.
Provided without warranties.