# da-luce/astroterm

A planetarium for your terminal! Explore stars, planets, constellations, and more, all rendered right in the command line—no telescope required. ✨🪐

Repository: https://github.com/da-luce/astroterm
Canonical: https://ross.abutalabs.com/products/astroterm
Language: C
License: MIT
License Family: permissive
Topics: c, command-line, terminal, linux, screensaver, ascii, ascii-art, linux-terminal, screencast, space, console, tui, unix, unix-shell
Last push: 2026-08-20T21:51:29+00:00

## Health v2 (maintenance only)
Score: 88/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 98, release rhythm 77, longevity 83
- inputs: {"age_days": 1174, "days_push": 13, "days_rel": 155, "gap_med": 3.5, "n_releases_24m": 13}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2021, forks 48 (observed 2026-08-28T04:06:06.358451+00:00)

## What it is
astroterm is a terminal-based planetarium written in C that renders real-time positions of stars, planets, constellations, and moon phases as ASCII art. Users can configure sky views by date, time, and location for accurate celestial visualization.

## Use cases
- view the night sky from my terminal
- check planet positions for a given date and location
- render constellations as ascii art
- terminal screensaver showing stars
- see moon phases in the command line
- explore past or future celestial events without a telescope

## When to choose
- you want a lightweight, fast terminal-based star map with accurate rendering
- you prefer ASCII/TUI visuals over graphical planetarium apps
- you need customizable date, time, and location sky views on Linux/macOS

## When to avoid
- you need high-resolution graphical sky rendering or telescope control
- you want deep astronomical computation beyond visual star maps
- you need a GUI planetarium experience

## Facets
- artifact type: cli-tool
- maturity: active
- function: cli, terminal-ui, data-visualization
- domain: astronomy, developer-tools
- platform: cli, cross-platform
- tags: astronomy, planetarium, ascii-art, tui, star-map, screensaver, c, command-line, linux, macos

## Member repositories
- da-luce/astroterm (main) score 88

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:06.358451+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:00:10.274418+00:00, confidence not recorded.
  - readme: https://github.com/da-luce/astroterm (fetched 2026-08-28T04:06:06.358451+00:00, sha 35e7f5d0aa3a)
- Data as of 2026-08-30T08:39:29.467469+00:00.