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> A Day on Io - 5/6 - Artwork
A Day on Io - 5/6 - Artwork
author: Ron Miller/Novapix
reference: a-jup99-00319
Image Size 300 DPI: 23 * 20 cm
Io keeps the same face toward Jupiter as it orbits the planet. For this reason, Jupiter appears to hang motionless in Io's sky. Just as the Earth's Moon does, Jupiter goes through phases as Io orbits it. Here's a gallery showing the view from a location in the northern hemisphere during the course of a single day.
5. Ten and a half hours later and the sun has now set below Io's horizon. Jupiter is in its last quarter phase. A distant volcano has begun erupting and the gasses it is releasing into Io's thin atmosphere are glowing in the dense radiation field that surrounds Jupiter and Io.
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