#astronomy

Python/numba code for manipulating time-dependent functions of spin-weighted spherical harmonics on future null infinity

observerly’s lightweight, zero-dependency, fully-tree shakeable type-safe astrometry library for TypeScript. Accurately determine the positions of the Sun, Moon, and planets, handle coordinate transformations with ease, calculate transit times for any celestial object and integrate precision astronomy into your projects.

Library to read Murchison Widefield Array (MWA) raw visibilities, voltages and metadata into a common structure

The Command Line Interface (CLI) & Python Module for Arcsecond.io.

Software suite to perform solid-body tidal dissipation calculations for rocky and icy worlds

Dependency-free, std-only FITS header reader/writer (parse + CRUD + serialize).

Read and write XISF image-file headers: FITS keyword extraction + header CRUD. Header-only Rust crate (quick-xml, thiserror, optional serde).

Professional Python library for Vedic Astrology calculations with NASA JPL ephemeris

Javascript implementation of Moshier's ephemeris calculations for sun, planets, comets, asteroids and stars.

Planning-grade astronomy math for astrophotography tooling

A package to generate off-axis PSFs for the SCAO mode for MICADO at the ELT

Pure Go Astropy-inspired astronomy and observatory-planning toolkit

A pure-Zig implementation of the FITS 4.0 astronomical data format, with feature parity goals against CFITSIO - no C import, no C sources.

Automated VLBI pipeline in CASA (AVICA) is a batch VLBI processing and calibration pipeline with zero learning curve and no input configuration.

Clean-room TypeScript astrology computation: ephemeris, charts, events, timing techniques, Vedic methods, MCP tools; validated against named references.