A Day on Io - 5/6 - Illustration - A Day on Io - 5/6...

A Day on Io - 5/6 - Illustration - A Day on Io - 5/6 - Artwork: Io always points the same face towards Jupiter during his orbit and like the Moon from Earth, Jupiter presents different phases to him. This series of images shows the landscape changing in a day from a point in the northern hemisphere of Io-5. Ten and a half hours later, the sun set on the horizon of Io. Jupiter is in his last quarter phase. In the distance, a volcano erupts and the gases emitted into the thin atmosphere of Io illuminate in the magnetic field surrounding Jupiter and Io - Io keeps the same face towards 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 gasse it is releasing into IO's thin atmosphere are glowing in the dense radiation field that surrounds Jupiter and Io