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When to use Circumbinary Planet 3D Explorer

Last reviewed: 2026-07-21

Use this explorer when you want to see a real planet orbiting two stars at once, and skip it when you want a simple two-star pair with no planet, or a single-star transit detection.

The numbers side by side

Aspect	Circumbinary Planet 3D Explorer	Typical alternative
Install size	0 MB - runs in the browser	Desktop exoplanet software varies
Price	USD 0	Often paid software
Kepler-16 periods	Stars 41 days; planet 228.8 days	Static diagram without dual-orbit scrub

Showing how a real "Tatooine" planet orbits a binary star's shared center of mass
Comparing the binary stars' 41-day orbit with the planet's 228.8-day orbit
Correcting the movie comparison - Kepler-16b is a gas giant, not a desert world

This is an educational visualization with enlarged body sizes and sped-up motion.

Walk the controls in the step-by-step guide, or compare options in vs alternatives. Open the Circumbinary Planet 3D Explorer.

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Last updated: Jul 21, 2026

Reviewed by the Free Tool Online editorial team · Tested in the current versions of Chrome, Firefox, Safari, and Edge before publishing. No account is needed to use any tool. Report a bug - we triage within 72 hours. · Last refreshed April 2026.

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