Khi nao dung Synodic Lunar Month 3D Explorer

Use this explorer when you want to see why the phase month is longer than the orbit, and skip it when you only want to name the phases or read a calendar.

• Explaining the gap between the synodic and sidereal months
• Linking the 2.2-day difference to Earth own motion around the Sun
• Showing why lunar calendars drift against the solar year

This is an educational visualization with a sped-up, not-to-scale Moon orbit.

Walk the controls in the step-by-step guide, or compare options in vs alternatives. Open the Synodic Lunar Month 3D Explorer.

Last updated: Jul 17, 2026