| Surprisingly, a great amount of profound inform- ation can be discovered about the universe with the unaided eye or with a small telescope or binoculars - or even by looking at the telephotos published in books because the astronomers might have missed what you are looking for! One of the first things you will see when looking at Jupiter are what Galileo saw - four moons that are forever changing position. One of them circles Jupiter so fast that you can see its position change even within one night! The second thing seen are that Jupiter has parallel cloud-bands.
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What you want to do is answer a few questions based on your own observations.
1. Do the four moons share a single plane of orbit, or are the orbits tilted from each other? (Hint: what are all the meanings if you ALWAYS saw the moons lined up in a straight line as in the rightside figure, above?) 2. Do the cloud-bands on Jupiter line up with any or all of the four moons? If so what does that tell you about the axis of Jupiter. 3. What is the "ecliptic" and what does it mean if you always find Jupiter near the ecliptic? (What does that tell you about the orbital planes of both Jupiter and the earth?) 4. Compare your Jupiter findings with what you find with Saturn and its rings. You'll be amazed at how much you can tell about our solar system!
| If for any reason you cannot actually see Jupiter's clouds and the four Galilean moons, go to the library and look at many different photographs (not drawings) taken of Jupiter AND its four moons. Using these photos you can then answer the above questions.
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Be sure to see more details: www.science-projects.com/Jupiter.htm
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