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How fast was the Galileo spacecraft going when it reached Jupiter?
Wiki User
∙ 13y ago
From what I have read it was going 50,000 mph.
Wiki User
∙ 13y ago
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What are the galilean satellites like?
When Galileo turned his new telescope to Jupiter for the first time, he was puzzled by the fact that there were four other tiny objects clustered around Jupiter. It took several days of observations before Galileo realized that they were moons - going AROUND JUPITER, when Aristotle had said that everything went around the Earth. So, thought Galileo, if some things are going around Jupiter and our Moon is going around the Sun, perhaps Jupiter and the other planets were also going around the Sun. Jupiter has, at last count, 63 moons, but only four are big enough to be seen in a common backyard telescope; Io, Ganymede, Callisto, and Europa. These were named for the lovers of Jupiter. These are the four that Galileo say, so they are called the "Galilean moons of Jupiter".
Which ancient astronomer was the first to use a telescope?
Galileo Gailei is the first person credited with using the telescope for astronomical observations. He did not invent the telescope. He is the first to have seen moons going around Jupiter, the rings of Saturn (though he incorrectly identified them), and that the Moon had cliffs and craters.
What spacecraft has been to Callisto?
The Pioneer 10 and Pioneer 11 probes (early 1970s) were carried out a flyby of Jupiter and in doing so contributed only a small amount to what was known about Callisto from Earth-based observations. The Voyager 1 and Voyager 2 flybys in 1979 provided detailed images of Callisto's surface and also measured its temperature, mass and shape. The Galileo spacecraft made several close passes over the moon, with one 2001 going down as close as 138 km from Callisto's surface. In 2001, the Cassini spacecraft, on its way to Saturn, took some infra-red images of Callisto. Most recently, the New Horizons probe, on its way to Pluto collected images of Callisto.
What else was going on when Galileo became famous?
Because he was the first person in the world to draw sketches of the Moon and the Moons of Jupiter.
What did Galileo discover?
He improved the recently invented telescope to see into space, he discovered Jupiter's moons and Saturn's rings. He observed how Jupiter's moons orbited around it and this convinced him that the Copernicus's Heliocentric model (model of planets orbiting around the sun rather than the earth) was correct. Galileo published these ideas and was put on trial for supporting the heliocentric models and going against the Roman Catholic Church's beliefs. He avoided execution but spent the rest of his life under house arrest.
How long will it take to go the planet Jupiter?
That would totally depend on how fast you were going. The Galileo spacecraft took six years to get to Jupiter going thousands of miles per hour.
How did Galileo's observations of Jupiter's moons challenge Ptolemy?
Ptolemy claimed everything must go around the Earth, but the moons of Jupiter obviously are not going around the Earth.
What are the galilean satellites like?
When Galileo turned his new telescope to Jupiter for the first time, he was puzzled by the fact that there were four other tiny objects clustered around Jupiter. It took several days of observations before Galileo realized that they were moons - going AROUND JUPITER, when Aristotle had said that everything went around the Earth. So, thought Galileo, if some things are going around Jupiter and our Moon is going around the Sun, perhaps Jupiter and the other planets were also going around the Sun. Jupiter has, at last count, 63 moons, but only four are big enough to be seen in a common backyard telescope; Io, Ganymede, Callisto, and Europa. These were named for the lovers of Jupiter. These are the four that Galileo say, so they are called the "Galilean moons of Jupiter".
What discovery did Galileo make using a telescope?
His primary discovery was the four larger moons of Jupiter, which are called the "Galilean moons" in his honor. It was absolute proof that Aristotle had been wrong about everything in the heavens going around the Earth; here were these four moons going around Jupiter, not the Earth!
Length of years to get to Jupiter using earth years?
That really depends on the speed. A ray of light will take less than an hour to reach Jupiter. Going with a spacecraft with current technology, it takes several years.
What is one well known satellite that visited Jupiter?
The only probe that visited Jupiter and stayed for any length of time was the Galileo probe. Launch from Earth in 1989, it arrived at Jupiter in 1995, and orbited Jupiter and its moon until Sept. 2003, when,due to the deterioration of the orbiter, NASA crashed it into Jupiter's atmosphere. Both Voyagers and Cassini/Huyguens did fly-bys of the planet without going into orbit.
Is anyone ever going to Jupiter?
No , no one is going onto Jupiter yet
What planet has a wind storm that lasts at least 300 years?
The Great Red Spot on Jupiter is a giant storm that has been going continuously well over 300 years. It was first observed by Galileo in the 17th century (the 1600s).
Who proved that the earth is going around the sun?
Galileo
Which ancient astronomer was the first to use a telescope?
Galileo Gailei is the first person credited with using the telescope for astronomical observations. He did not invent the telescope. He is the first to have seen moons going around Jupiter, the rings of Saturn (though he incorrectly identified them), and that the Moon had cliffs and craters.
How many years has the hurricane on Jupiter raged?
There are several. The largest and best known is Jupiter's Great Red Spot, which is thought to be a super-hurricane sucking up odd materials from the depths of Jupiter's violent atmosphere and turning the cloudtops red. It has been there since Galileo first turned his telescope skywards 400 years ago, but we have no idea how long it had been going on. There have been other cyclonic storms on Jupiter, some of which have lasted for many years.
What spacecraft has been to Callisto?
The Pioneer 10 and Pioneer 11 probes (early 1970s) were carried out a flyby of Jupiter and in doing so contributed only a small amount to what was known about Callisto from Earth-based observations. The Voyager 1 and Voyager 2 flybys in 1979 provided detailed images of Callisto's surface and also measured its temperature, mass and shape. The Galileo spacecraft made several close passes over the moon, with one 2001 going down as close as 138 km from Callisto's surface. In 2001, the Cassini spacecraft, on its way to Saturn, took some infra-red images of Callisto. Most recently, the New Horizons probe, on its way to Pluto collected images of Callisto.
