The Rotation of Neptune

This video is a full-globe map of Neptune created from Hubble Space Telescope data taken in January, 2020. The planet completes a rotation every 16 hours.

Neptune has dynamic weather. White clouds of methane ice crystals swirl around the planet, and two giant dark spots, giant storms, circle around the northern hemisphere. Around the southern pole, banding is concentrated where the winds are blowing west to east, in the same direction as the planet’s rotation. but near the equator, the winds blow east to west, in the opposite direction as the planet’s rotation.

The giant vortex near the equator is 4,600 miles across, wider than the Atlantic Ocean. Its slightly smaller companion is 3,900 miles across.

Video Credit: STScI

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