OVERVIEW
Overview
Zhoujian is a pure front-end 3D universe exploration and learning tool focused on making the Solar System easier to understand through interaction. It combines celestial positions, time controls, scale, hierarchical navigation and scientific facts in one explorable scene.
The current version includes the Sun, eight planets, Pluto, Earth's Moon, 20 major moons, Ceres, Vesta and 1P/Halley — 34 interactive Scene Bodies in total — plus visual teaching representations of the Main Asteroid Belt and the Kuiper Belt. The interface is bilingual in Simplified Chinese and English, with both Teaching and Real scale modes and time-aware simulation controls.
Positions and orbital facts reuse Astronomy Engine plus approved NASA / JPL teaching snapshots and fixed orbital elements. Some major-moon and small-body motion is an educational approximation and should not be treated as a precision ephemeris or live NASA / JPL data.
USAGE
Usage
Open the page and drag, zoom and rotate the scene. Select a body or its label to focus and view details. Use Explore to browse the Solar System hierarchy or search for a specific object. Switch between Teaching and Real scale, and use the time controls to inspect how positions change over time. Open Compare to select two bodies and inspect their true diameter ratio and available scientific facts side by side.
FEATURES
Features
0134 interactive Solar System bodies: the Sun, eight planets, Pluto, Earth's Moon, 20 major moons, Ceres, Vesta and 1P/Halley
02Visual teaching representations of the Main Asteroid Belt and Kuiper Belt
03Teaching / Real scale modes for switching between readability and physical scale
04Simulation / Real-time time modes with play, pause, speed controls, manual time and Now
05Independent Names and Moons visibility controls without disrupting selection or camera state
06Hierarchical Celestial Navigator and global bilingual search with exact, prefix and contains matching
07Celestial Detail Panel for available radius, diameter, mass, gravity, temperature, orbit and moon-count data
08Celestial Comparison for comparing any two existing bodies by true diameter, physical facts, orbit and moon information
09Searchable comparison pickers with Chinese / English cross-language lookup and A/B swap
101P/Halley with a high-eccentricity retrograde orbit, teaching activity effects and a tail pointing away from the Sun
11Responsive desktop and mobile layouts, including small 320px / 420px screens
12Runs entirely in the browser with no account, database or runtime NASA / JPL API
