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Io-Jupiter 1
Of the four Galilean moon, Io is the closest to Jupiter giving it the designation Jupiter 1. Also, Io is the third largest moon orbiting Jupiter and the fourth largest moon in the solar system.
Io is also is the most volcanically active celestial object in the solar system with volcanic plumes rising up to 186 miles (300 km) above its surface. Its surface is covered with lava flows giving it shades of yellow, red, white, black and green colors
(m5pr-planet-jupiter-1.io) Jupiter′s Moon Io
Photo Credit: Solar System scope
Facts about Io-Jupiter 1
Discovered by: Galileo Galilei
Date of Discovered: 8 January 1620
Planet Orbital Position: Jupiter 1
Equatorial Diameter: 2264 miles
Axil Tilt (to orbit): 0.05 ° to Jupiter&pirme;s equator
Axil Tilt to ecliptic: 2.213 °
Rotation Period: 1.769 days
Orbit Period: 1.769 days
Surface Temperature: -242 ° F.
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