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Hanna Wosenu

on 25 January 2018

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Transcript of Ganymede

The name Ganymede comes from an ancient Greek Mythology of a young Trojan boy who becomes a cup bearer for Zeus. The nearest planet to Ganymede is most definitely the planet that it orbits/revolves around of, Jupiter. The closest moons to Ganymede are the three other Galilean moons, Io, Europa and Callisto. Ganymede orbits Jupiter at a mean distance of 664,000 miles.
Ganymede’s Cycles
Ganymede’s orbit around Jupiter takes roughly about 7 Earth days to be completed. The rotational period of Ganymede is also the same at its orbital period. No matter where in the orbital period or rotational period Ganymede is its same side of Ganymede always faces Jupiter. The small orbital inclination and axial tilt ranging from 0 degrees to 0.33 degrees essentially means Ganymede has no seasons as we know them on Earth. However, Daytime temperatures on the surface average minus 171 degrees Fahrenheit to minus 297 F, and night temperatures drop to -193C making Ganymede unsuitable to support human life.
Fun Fact: Ganymede orbits in a 4:2:1 resonance with Io and Europa meaning when Ganymede has completed on orbit around Jupiter, Europa has completed two and Io has completed four.

A Moon of Jupiter: Ganymede
Hanna Wosenu
Ganymede's Location and History
Ganymede's Geographic Setting
Ganymede’s surface is made up of two types of terrain. The first type which covers forty percent of the surface is the dark terrain. Secondly, the remaining sixty percent of the surface is covered in light terrain. These two types of terrain form different and unique patterns all across the surface. Ganymede is also huge in size and is the biggest moon of Jupiter. It is bigger than Mercury and Pluto and if it were to be orbiting the Sun rather than Jupiter it would have easily been classified as a planet. The surface of the moon is also impacted by many craters.
Atmospheric Setting
Ganymede has an atmosphere made of mostly ozone and oxygen, however this atmosphere is too thin and would never be able to support life as we know it. Due to the thin atmosphere you wouldn't find much weather phenomena. The temperature in Ganymede stays really low. It is also likely that it undergoes frequent and violent shakings of the ground, not unlike earth’s earthquakes.
Potential Resources for Human Colony
If you were to be on Ganymede you would find a huge ocean of salty water that is more water than the water we have here on Earth. The seafloor is rocky and there is a layer of ice on top of the water but we know for sure that if humans were to live on Ganymede there would be water. However, the atmosphere, as I stated before, is too thin to support life as we know it. Also, the surface of Ganymede is rocky meaning we don;t know if we could farm on Ganymede either. Based, of what we know Ganymede couldn't potentially support life. But there is still much more to find out about this celestial body !

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