Features

The inspected product in projets/AstroGuide provides the following features.

Exploration

• textured 3D scene with animated orbits and camera controls;
• mouse- and touch-driven 2D map with pan and zoom up to 20×;
• comparison of approximate diameters or extents;
• search, filters, constellations and object selection for comparison.

Catalogue

The base data and localized catalogue contain 39 objects: the Sun, planets, Moon, Solar System, stars, black holes and galaxies. Every object has a stable identifier, type, display values and description in English, French, Spanish and German.

Integrity tests reject a different catalogue size, duplicate identifiers, non-positive sizes, missing localized fields and constellation segments that reference an unknown object.

Interface

• English default interface with complete French, Spanish and German alternatives;
• layouts for desktop, tablet, portrait mobile and landscape mobile;
• WebGL render loop paused whenever the 3D view is inactive;
• fallback materials when a texture cannot load;
• optional demo mode enabled only by the demo build.

What is not a feature

• no user account;
• no NASA or other API key;
• no persistence of navigation choices;
• no exact astrophysical simulation of distances.