12/15/2023 0 Comments Jupitors io moon energy sourceImage taken by the instrument MVIC (Multispectral Visual Imaging Camera) of New Horizons. The Sun is to the left of the photo and the Jupiter to the right, moreover we can notice that the night-side of Io is enlightened by the light reflected by Jupiter, Europe being absolutely dark on the other hand. Image: Photography of the croissants of Io ' on the upper left) and of Europe (below to the right), taken on March 2nd, 2007 by the probe New horizons in 4,6 million kilometers of Io and 3,8 million kilometers of Europe, the moons separated from 800 000 kilometers one of the other one. The light which crosses the tiny particles of dusts ejected by volcanoes, gives this bluish light while on the base of the panache of Tvashtar, we can see a red light which lets us guess the incandescent lava of the volcano. The first one is the one of the volcano Prometheus, at "9 hours", and the second that of the volcano Amirani, between Prometheus and Tvashtar along the border at day-night on the moon. Two other smaller panache are hardly visible. The most spectacular panache is the one which amounts to 290 kilometers above the volcano Tvashtar near the north pole. Io watch on the photo opposite, its intense activity because three volcanic panache are visible in spite of the smallness of the image. Photo taken by the probe Cassini-Huygens in December, 2000. It makes the tour, on a very low orbit, in 42 hours and 27 minutes. Indeed with its 3680 km in diameters, Io seems tiny when she walks past the enormous globe of Jupiter (143000 km in diameter). Image: We perceive on this tiny photography Io with its shadow being reflected on the gigantic surface of Jupiter. Certain regions constitute a magnificent contrasted palette where dominate the yellow, the green and the red.Ĭhangeable tints of lava flows reflect, partially, the chemical states of the sulfur which changes according to the temperature. The sulfur and its compounds look to these landscapes of the colorful colors. The surface of Io thus presents a big variety of grounds characterized by depressions which correspond to the calderas of volcanoes, eminences, high trays, mountains and chains of craters. Pulled so between Jupiter and Europe, deformed every 42 hours by tides of big amplitudes (until 100 m), Io warms up and loosens billions of kilowatts of heat or 40 times more than the Earth, while she is not bigger than the Moon.Īll this makes that this celestial body the internal layers of which are in fusion in a permanent, present way ceaseless and gigantic volcanic eruptions amount on average to 10 000 tons of lava per second and by volcano. On every meeting, both moons incur and deform mutually. Io, faster, thus catches up it and exceeds it both tours of orbit. Placed on a higher orbit, Europe makes the tour of Jupiter in 85 hours. So by shaving the huge planet, it is subjected to an enormous effect of tide which deforms it and warms, not only its surface but also its internal layers.įor that purpose of tide, is added the second, that of another moon of Jupiter, a little smaller Europe with its 3 122 km in diameters. Its orbit is very low, Io puts in 42 hours and 27 minutes to make the tour of Jupiter. With 3 680 km in diameters, Io seems tiny when she walks past the enormous globe of Jupiter the diameter of which is 143 000 km. Io is subjected to a double effect of tide which stretches its surface and its internal layers everywhere. This interaction deforms the surface of Io which lifts up itself and falls up to 100 meters and produces of the heat by internal friction.īefore even the discovery of the volcanic eruptions of Io, these had been foreseen by a team of American researchers, steered by S. Although Io always presents the same in front of Jupiter, the presence of Europe and Ganymede makes it vacillate a little. The energy necessary for this activity results probably from interactions of tide between Io, Europe, Ganymede and Jupiter. Io is especially remarkable for its active volcanism, observed that on the Earth. It pulls its name of Io, loving conquest of Zeus persecuted by the wife of this last one, Hera, whose a priestess she had been. Io is one of four Galilean moons of Jupiter, the closest to the planet.
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