imagine that we'll buy a roast chicken on a Sunday any that do not feel like cooking. We went into the poultry and see that something is happening. There are many people arguing inside the store. " Must see! Since we have changed owners, it has lost much poultry.
And it's not for nothing. When we look at the machine to roast chicken, we realize that chickens are turning to an unusual shape. That is, the chickens are fixed on a metal stick, as usual, but instead of turning parallel to the machine, so that all parts of chicken are roasted equally, these chickens revolve around an axis perpendicular to the machine. And so people is so angry. All chickens in the store have your ass scorched and, instead, the head completely raw. Of course, I'm never going back to that store until the new owners once they learned the correct way to turn a chicken to roast.
For this is what happens to the planet Uranus. The rotation axis of Uranus is in the same plane as its orbit around the sun So much we twist and turn the sun always illuminates the same face of the planet and the other is always dark. And to top it also turns upside down the other planets!
The rotation axis of Uranus is tilted about 98 degrees.
Uranus brightness limit for the human eye can see without the aid of telescopes. So take so long to be discovered. Once discovered it was found that as previously observed, but had been confused with other objects. For example, Galileo had observed in 1612, but mistook it for a satellite of Jupiter, and at that time were very close. A little later (in 1691) Uranus was confused with a star. It was not until 1781 when William Herschel discovered it, but even he thought at first it was a comet.
William Herschel's life is curious. Herschel was a musician than a good day, ~ 35 to us, bought a book on astronomy. We liked it so much he decided to build himself a telescope and watch the sky. Well, after eight to ~ us in 1781, discovered Uranus and thanks to that could be remove music and spending time on astronomy. Despite having started so late to do astronomy discovered Uranus, 2 of 2 more satellites of Saturn. And he discovered also that the sun moves across the galaxy. Not bad, right? And they say that in science only succeeds in his youth, when not yet all your brain cells have died.
Drawing a telescope built by W. Herschel.
Uranus, like Jupiter or Saturn is a gas giant. Although it would be more appropriate to call Ice Giant, because gas accounts for only 15 \\% of its mass. Has a core ice gradually becomes liquid ocean as we move away from the center and then the outermost layer is the layer of gas that we see.
The most interesting satellite of Uranus's Miranda, who only see it as scary. To me, Miranda reminds me when a toddler plays to make mud balls and suddenly he gets tired and starts half of the ball that has been totally distorted by leaving. Well, this is Miranda. A huge collision has torn much its surface. In fact, it has the deep cliff in the Solar System (20 km high, 10 times more than the Grand Canyon).
The satellite of Uranus, Miranda, has the deep cliff in the Solar System.
The surface of Uranus is very dull. Is blue, but are not clouds, storms or any feature visible in its atmosphere. So you can imagine the disappointment in the control center of the Voyager 2 spacecraft when it took the first photographs of Uranus in 1985 and saw that blue billiard ball. But while Uranus gives us spectacular images, the number of questions raised in the exploration of Uranus was important. Why Uranus tour that so rare? What happened to Miranda? How are the rings of Uranus? It seems to be that true that the more deeply into a subject less we know about that topic.
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