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astroterm icon

astroterm

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

astroterm screenshot 1

Cost / License

  • Free
  • Open Source (MIT)

Application type

Since

  • Since 2025

Updated

  • Updated Sep 2026

Platforms

  • Linux
  • BSD
  • FreeBSD
  • Mac
  • Homebrew
  • Nix Package Manager
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AlternativeTo Category

Education & Reference

GitHub repository

  •  2,502 Stars
  •  66 Forks
  •  44 Open Issues
  •   Updated  
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astroterm was added to AlternativeTo by Paul on and this page was last updated .

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What is astroterm?

astroterm is a terminal-based star map written in C. It displays the real-time positions of stars, planets, constellations, and more, all within your terminal—no telescope required! Configure sky views by date, time, and location with precise ASCII-rendered visuals. See usage for all supported options!

Features:

  • Highly Customizable: Choose any date, time, and location to explore past, present, or future celestial events
  • Accurate Rendering: View the moon, stars, and planets with as much precision as terminal graphics allow
  • Moon Phases: Precise lunar phases in real-time
  • Constellation Figures: Detailed constellation shapes
  • Performance Optimized: Lightweight and fast ASCII rendering