- Uranus is the first planet discovered by a telescope.
Starry Sky Simulation Uranus
1781, astronomer William Herschel (by the way he is not that half-baked musician) found Uranus in his telescope. Unlike stars, Uranus has a small disc. Herschel At first thought he discovered the comet . However, after carefully recording the changes in its position, Herschel was able to draw the orbit of Uranus and found that it did not follow the eternal path of the comet but the near-circular path of the planet - according to this, Uranus became another planet after Saturn .
- In good cases, you can see Uranus with naked eyes.
At the brightest, Uranus' brightness is actually enough to be seen by naked eyes on a clean, dark, moonless night. There is no doubt that many people have seen it for centuries, but they have not successfully noticed the slow movement of the planet one night after another among many stars, so they did not realize it was a planet.
- If Herschel insists on his own approach, there will be no name on this seventh planet that will make junior high school students laugh no matter how you pronounce it.
Herschel, the first person to officially discover a planet, thinks he should have the right to name the planet. If he sticks to his approach, the planets (from the inside out) will be " Mercury " (Mercury), "Venus" (Venus), Earth, " Mars " (Mars), "Jupiter" (Saturday), and... "George" (Uranus). Although born in Germany, Herschel lived in England when she discovered Uranus and, as a loyal citizen of the king, he believed that it was a wise decision to name his discovery "The Star of King George" according to the recent king, George III. With Herschel's efforts, he tried to successfully get the man who lost the American colonies a few years ago to obtain a complete new planet (although it cannot be denied that it was a difficult place to collect taxes). Other astronomers (especially French astronomers) somehow opposed the King of England getting the planet, so eventually the new place was named "Elinas", the father of "Sadun" in Roman mythology.
- Uranus is probably the most boring planet.
Even in the largest astronomical telescope on Earth, Uranus looks like a small blue dot.
Boguanmaca1501800Remote shooting/Dabao teacher
Actually, this planet is not really small (actually its diameter is about four times that of the earth), just because at an average distance of 1.8 billion miles, anything looks very small. When Voyager 2 approached Uranus in 1986, scientists hoped to see the details. But while Uranus has grown bigger in Voyager 2’s camera, it’s still a featureless disc.
Source: Baidu Encyclopedia
- Traveler No. 2 gave us the first look of Uranus.
When the closest to Uranus, Voyager 2 finally saw the top of a complex huge cloud-like object similar to a thunderstorm on Earth (but there may be no thunder and lightning). Each one is almost as big as the United States. In recent years, Hubble has sometimes observed clouds of similar structures, but more often, Uranus is still very calm in vision. The existence of a high-altitude fog layer on Saturn's clouds gives it a calmer appearance than Jupiter .
However, in the case of Uranus, the situation is more extreme. In fact, apart from the mist, the sun's ultraviolet rays create a thick layer of ethane mist on the Uranus clouds, through which we cannot see any details.
- Uranus is "lying down" orbiting the sun.
Although the inclination angle of the Earth's rotation axis is 23.5 degrees, the axis of Uranus is incredibly exceeding 97.9 degrees. This means that the axis of the planet is almost lying on the orbital plane. As a result, Uranus is facing the sun when it moves around the sun. Many astronomers speculate that Uranus's peculiar inclination is the result of the early collision of massive objects in the solar system - a collision that knocked Uranus to "lie down".
- Uranus has strange days, strange nights and strange seasons.
Uranus' axis inclination 97.9 degrees causes the pole pointing to the sun to exchange every 42 years. In other words, near the two magnetic poles of Uranus, the polar night and polar day will last for 42 years respectively. Similarly, summer and winter will last for as long as possible. However, due to the sharp turn of atmospheric circulation, winter is a little warmer than summer, although temperatures at the top of the clouds rarely exceed minus 300 degrees Fahrenheit in both seasons.
- Uranus looks blue due to the methane gas in its atmosphere.
Like Jupiter and Saturn, Uranus is another world surrounded by a fortune composed of hydrogen and helium. However, its atmosphere also has trace amounts of methane gas. Methane absorbs red, orange, and yellow light at the same time scatters blue light into our eyes, so this makes the planet look blue.
Jupiter-Boguanmaca1501800
Saturn-Boguanmaca1501800
- 1977 In 2019, the ring surrounding Uranus was discovered without anyone really seeing it.
1977 Astronomers were observing Uranus, waiting for it to pass through a distant star. During this process, when the star is blocked by Uranus, its light will dim, and scientists can take the opportunity to infer some conclusions about the structure of Uranus' external atmosphere. However, before the planet and the star become a straight line, the star's light shines several times. Astronomers appropriately infer that this phenomenon is due to the "erosion" of star light caused by a very thin and dark ring system surrounding the planet. This process is repeated as expected as the star passes behind the planet. From the number and duration of the shine, astronomers estimate that Uranus is surrounded by nine very thin rings.
- 1986 It was the first time we really saw the ring of Uranus.
Voyager No. 2 is close enough to a distance to draw the ring of Uranus in high definition. With a plan specially formulated to see this first, scientists carefully decided the location of Voyager 2 so that it could see another star passing by behind Uranus rings. Voyager 2's camera identified a spider-web-like thin ring and added a particularly fuzzy ring No. 10 that was not found on Earth. Voyager 2 also confirms a good hypothesis about why these rings have never been truly observed on Earth. Not only because they are thin, but they are all as black as charcoal. One possible hypothesis explains that the particles that make up the rings may be coated with a coat of methane ice that darkens when sunlight shines. Like Jupiter and Saturn's rings, Uranus' rings are bound to the planet's equatorial plane, so they are like Uranus, orbiting the sun on one side.
- Uranus has a magnetic field that we already know how to swing.
Earth, Jupiter and Saturn, their magnetic poles are very close to the planet's rotation axis. But Uranus proves to us that not all are like this. Uranus' magnetic poles have an angle of 59 degrees to its rotation axis. As long as Uranus rotates, we can see two magnetic poles repeatedly.
For Uranus, how fast it rotates depends on what you are talking about.
Like Jupiter and Saturn, the rotation speeds on Uranus at different latitudes are different, so just how long a day depends on where you are. But Uranus is so distinctive that scientists often use the rotation speed of the magnetic pole when it rotates.In fact, this also shows from one aspect how fast the planet's core rotates, and the magnetic poles are also bound by this molten iron core. However, we cannot directly see the inner core. The instrument called the magnetometer on Voyager 2 can sense the magnetic field of Uranus and draw a magnetic field diagram.
- spacecraft discovered a satellite twice the number of satellites of this planet discovered on Earth in a few days.
1787 By 1948, the five largest satellites of Uranus were discovered on Earth. In 1986, Voyager 2 discovered more than a dozen satellites arranged at distances of 70 to less than 20 miles at the planet's
flyover point.
"Miranda" (the Uranus moon closest to Uranus) is a "patched quilt" geological miracle.
Among all the satellites in the solar system, Uranus's "Miranda" is the biggest treasure without a master. However, the "Miranda" is only about 300 miles in diameter, and the borders of this tiny place are full of cliffs, cliffs, canyons and terrain that can only be described as chaotic. Scientists believe that in the early days, Miranda was hit by at least once by an object that was large enough to knock it into pieces. Under the gravitational force between the fragments, they rejoined together, but not according to their original arrangement, thus creating a satellite similar to a three-dimensional tangram.
Tianweiwu (Miranda)
The small blue dots connotate so many magical content. To learn more about Uranus, you need a professional astronomical observation instrument, such as Boguan Maca 1501800, a powerful planetary observation tool!
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