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gunerguner

gunerguner/AdAstra

An offline-capable interactive web app that reconstructs the local night sky in the browser for any place and time.

代替できる製品:Stellarium

GitHub で見る
スター
138
フォーク
13
未解決の Issue
0
最終コミット
6 日前

これは何？

Ad Astra is a browser-based sky simulator. You pick an observing site, either from a list of preset cities or by entering latitude and longitude, and a moment in time. The app then draws the local sky: bright stars, constellation lines, the Sun, the Moon, and the planets from Mercury to Neptune, updated as Earth's rotation and orbit change.

The view can be dragged and zoomed, and jumped to the cardinal directions or the zenith. A timeline lets you play, pause, or scrub through about eight hours, and step forward or back by hours, days, years, decades, or centuries. Layers such as the Milky Way, ecliptic, celestial equator, and coordinate grids can be toggled, and sky color changes through daylight, twilight, and night. The production build includes a Service Worker, so it can open offline after the first load.

The project is a popular-science simulation meant for learning constellations and the day-night cycle, not for professional observing or navigation. It is a static frontend with no runtime backend, built on React, TypeScript, Three.js with WebGL2, and Astronomy Engine running in a Web Worker.

主な機能

  • 01Shows bright stars, constellation lines, the Sun, Moon, and planets for a chosen location and time.
  • 02Supports city presets or manual latitude and longitude input.
  • 03Timeline playback ranges from real time to 100 years per second.
  • 04Layers such as the Milky Way, ecliptic, and coordinate grids can be toggled.
  • 05Sky color and star visibility follow the Sun's altitude through twilight stages.
  • 06Works offline after the first load via a Service Worker.

ユースケース

  • Learning to recognize constellations and their seasonal positions.
  • Understanding how the sky changes through the day, night, and twilight.
  • Exploring what the sky looked like at a given place and date.
  • Showing a classroom or outreach audience how Earth's rotation and orbit affect what we see.

トピック

#astronomy#webgl#threejs#react#typescript#pwa#simulation#education

よくある質問

AdAstra とは？
An offline-capable interactive web app that reconstructs the local night sky in the browser for any place and time. Ad Astra is a browser-based sky simulator. You pick an observing site, either from a list of preset cities or by entering latitude and longitude, and a moment in time. The app then draws the local sky: bright stars, constellation lines, the Sun, the Moon, and the planets from Mercury to Neptune, updated as Earth's rotation and orbit change.
AdAstra は無料で使えますか？ライセンスは？
AdAstra にはライセンスが明記されていません。コードは公開されていますが、ライセンスがない場合は再利用の許諾がないため、利用前に作者に確認することをおすすめします。
AdAstra は今もメンテナンスされていますか？
活発にメンテナンス中。AdAstra の最終コミットは 2026年10月13日 です。
AdAstra は何に使えますか？
Learning to recognize constellations and their seasonal positions. Understanding how the sky changes through the day, night, and twilight. Exploring what the sky looked like at a given place and date. Showing a classroom or outreach audience how Earth's rotation and orbit affect what we see.
AdAstra はどこで入手できますか？
ソースコードとインストール手順は GitHub にあります：https://github.com/gunerguner/AdAstra

概要はプロジェクトの README をもとに AI が生成しています。GitHub の数値は毎日更新されます。

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