Observed arrival · 2026-09-27
A Solar System You Can Rewind to 1800
A browser-based 3D solar system simulator for exploring planetary positions, dates, sky events, and comparisons between worlds.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- People exploring planetary motion or teaching astronomy
- Worth noticing
- A shared link retains the selected moment, camera, and display settings; comparison diagrams warn that spacing is illustrative.
Field notes
The controls let visitors scrub dates, run time forward or backward at selectable rates, switch between inner-planet and whole-system views, and jump to listed events. A share link preserves the chosen moment, camera, and display settings; planet comparisons keep diameters to a common scale while explicitly warning that diagram spacing is illustrative. The page also links to separate gravity and black-hole simulations and an accuracy-and-sources section.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue