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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.

Alternativa open source a:Stellarium

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138
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13
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Último commit
há 6 dias

O que é?

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.

Recursos principais

  • 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.

Casos de uso

  • 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.

Tópicos

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

Perguntas frequentes

O que é AdAstra?
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 é gratuito? Qual é a licença?
AdAstra não declara licença. O código é público, mas sem licença você não tem permissão explícita para reutilizá-lo; fale com o autor antes de depender dele.
AdAstra ainda é mantido?
Manutenção ativa. O último commit de AdAstra foi em 13 de out. de 2026.
Para que posso usar AdAstra?
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.
Onde consigo AdAstra?
O código-fonte e as instruções de instalação estão no GitHub: https://github.com/gunerguner/AdAstra

Resumo gerado por IA a partir do README do projeto. As estatísticas do GitHub são atualizadas diariamente.

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