Greyline Map

This page shoes the relative position of the sun, moon, and planets, as calculated with Astronomy Engine.

• Dragging right (left) advances (rewinds) time and rotates the planet.
• Dragging up (down) advances (rewinds) time by a day at a time.

Background imagery is the NASA Blue Marble Next Generation, including Topography, Bathymetry, and City Lights.