jupiter's moons

Which is largest?

Jupiter's moon Ganymede

Which moon of Jupiter is believed to have a liquid ocean beneath a layer of ice?

europa

Ganymede

largest moon in the Solar System (larger than the planet Mercury); icy crust; has craters so not active now, but cracks show it once was more active

of the four galilean moons, which is closest to jupiter?

lo

How many moons does Jupiter have?

more than 50

We saw that Kepler's 3rd law states that P^2/a^3 = constant. What does P represent in this equation?

orbital period, in this case how long it takes for a satellite to orbit jupiter

lo

the closest; mostly coppery-yellow with black dots, which are active volcanic sites; overall very volcanically active, due to "tidal heating" from Jupiter; low crater density; yellow color from sulfur

Callisto

the farthest out of the four large Galilean moons; very heavily cratered — many young craters; does not get heated much, and has not changed much since its formation; about the size of the planet Mercury

how were the first discovered and what did this mean?

the four largest were discovered by Galileo in the early 17th century CE; they looked like stars, but were found to orbit Jupiter — important because it helped demonstrate that Earth is not the center of Universe

Besides, the discovery that moons orbit Jupiter, what other discovery made by Galileo Galilei, with an early telescope, proved that the Earth is not at the center of the Universe?

the phases of venus

the mass of jupiter can be measured

using the periods and semimajor axes of the orbits of Jupiter's moons; periods range from 1.8 to 17 Earth days, and Jupiter's mass is about 317 Earth masses.

Europa

water-ice surface; no craters — ice movement wiped them out; liquid water ocean below icy crust

Which moon of Jupiter is the largest?

Ganymede

Which of the following statement is TRUE?

Io, Earth, and Triton have active volcanoes.