Our solar system is a very lively family. Eight Planets is like eight brothers and sisters in this family. Every planet is unique. What are the unique features of them? Let’s count one by one from Mercury to see which planet has set the most of the solar system?
Solar system
Mercury
When it comes to Mercury, we all know that it is the planet closest to the sun in the solar system and the smallest planet. In addition, Mercury has many of the best in the solar system. Let's come one by one.
Mercury is the planet closest to the sun. When Mercury is closest to the sun, it is about 46 million kilometers, and when it is farthest away from the sun, it is about 70 million kilometers, with an average distance of 58 million kilometers, which is almost two-fifths of the average distance of the sun. Mercury's perihelion and arihelion are 24 million kilometers apart, and the orbital eccentricity is as high as 0.2056, making it the flattest among all planets in the solar system. In comparison, the Earth's orbital qiu rating is only 0.0167.
mer
mer is the smallest planet in the solar system . Mercury has a diameter of 4880 kilometers, which is about two-fifths of the earth, and its volume and mass are about one-eighteenths of the earth. Mercury's size is even less than some satellites . For example, Jupiter satellite Iobo and Saturn satellite Titan are both larger than mercury.
Mercury is the planet with the shortest revolution period of and the fastest revolution in the solar system . Mercury only takes 88 days a week to orbit the sun. There are only 88 days on Mercury's "year". This is not only because it is closest to the sun, but also because it revolves very fast. The average revolution of Mercury around the sun is 47.87 kilometers per second, which is 1.6 times the average revolution of the earth.
The day-night temperature difference of Mercury is the largest among the eight major planets in the solar system, . Due to its proximity to the sun, Mercury's temperature can rise to 428℃ during the day; because of the lack of an atmosphere, Mercury's temperature will drop to -190℃ at night. The temperature difference between day and night on Mercury is as high as more than 600 degrees. Mercury is really a world of ice and fire!
The largest crater in the solar system - Calorie Basin
In addition, There is also the largest crater in the solar system on Mercury , called the Calorie Basin. The diameter of this crater is about 1,550 kilometers and has an area of about 1.89 million square kilometers, which is almost the sum of the area of Xinjiang and Shandong. Scientists speculate that about 3.6 billion years ago, an asteroid with a diameter of about 100 kilometers collided head-on with Mercury, leaving behind this huge crater.
Venus
Venus is the hottest planet in the solar system. Venus is due to the severe greenhouse effect of the atmosphere, and the average surface temperature is as high as 464℃ and the extreme temperature can be as high as 500℃. The top of Mount Maxwell, the highest mountain on Venus, is the coolest place on the surface of Venus, but the temperature is 380℃.
Venus
Venus is the planet with the largest number of volcanics in the solar system. scientists estimate that the number of volcanoes on Venus may exceed 100,000, or even 1 million. Among them, there are more than 1,600 large volcanoes with a diameter of more than 100 kilometers. In comparison, the total number of volcanoes on Earth is only more than 2,500. Venus has become the hottest planet in the solar system, which may be the most related to its solar system! A large number of volcanoes erupted an excess of carbon dioxide , causing a serious greenhouse effect on Venus.
The orbit of Venus is the roundest of the eight planets. Venus is the second closest planet to the sun. Its perihelion and arihelion are only 1.46 million kilometers apart, and its orbital eccentricity is only 0.0068. We compare it with Mercury's orbit and you will know how round its orbit is.
Volcanoes on Venus
Venus is also the slowest-rotating planet in the solar system. , which is about the same size as the Earth, takes 243 days a week to rotate. The circumference of Venus is 38,000 kilometers, so the rotational linear speed on Venus' equator is only 1.8 meters per second and 6.5 kilometers per hour.Isn’t this the same speed as our walking speed? The Earth's rotation speed on the equator is 463 meters per second and 1667 kilometers per hour, which is much faster than the rotation of Venus.
Mars
Mars Olympus volcano
Mars has the largest volcano and the largest canyon in the solar system. has several volcanoes with a height of more than 10,000 meters on Mars. Among them, the Olympus volcano is 21,171 meters higher than the Mars reference surface, about 600 kilometers wide, and covers an area of about 300,000 square kilometers, almost twice the area of Shandong Province. The height difference between Olympus from the foot of the mountain to the top reaches 21,900 meters, compared with the height difference between Mount Everest and Mount Everest on Earth, less than 4,000 meters.
This volcano is too tall and has a small slope. Standing at the foot of its mountain, we can only see the cliffs at the foot of the mountain that are as high as 5,000 meters, and we cannot see its top. To see its full picture, you can only go to outer space.
Martian Mariner Canyon
In addition to Olympus, there is also an obvious landform on Mars, which is the Mariner Canyon. The Sailor Canyon is more than 4500 kilometers long, the widest is more than 600 kilometers, and the deepest is about 8000 meters. We put the Himalayas into the Sailor Canyon on Mars. It is the largest canyon in the solar system.
Jupiter
When it comes to Jupiter, the first thing that comes to mind is: it is the largest planet in the solar system of . Whether it is mass or volume, it is the king of planets in the solar system. Jupiter has a mass of 318 times that of Earth and a volume of more than 1300 times that of Earth. In addition, Jupiter has many solar system bests.
Jupiter and Earth
Jupiter are the fastest-rotating planets in the solar system. Jupiter can rotate for only 9 hours, 55 minutes and 30 seconds. Jupiter's rotation speed at the equator reaches 12.6 kilometers per second, or 45,340 kilometers per hour. Jupiter's rotation speed is 27 times that of Earth. Therefore, although Jupiter is very big, it is a flexible fat man.
There is also a great red spot storm on Jupiter that has been raging for at least 200 to 350 years. It is about 25,000 kilometers long and has a span of 12,000 kilometers, which is large enough to fit into two earths. The Great Red Spot Storm is the largest anticyclone storm in the solar system.
Jupiter's Great Red Spot Storm and Earth
have the strongest magnetic field among planets is also the standard configuration of the king of planets in the solar system. Jupiter's magnetic field strength is 14 times that of the earth. On the side facing away from the sun, Jupiter's magnetosphere extends to Saturn's orbit. The interaction between Jupiter's powerful magnetic field and solar wind also forms the strongest aurora in the solar system, which is 100 times stronger than that of the aurora on Earth.
Saturn
Saturn ring
Although Saturn is just the second among the eight major planets in the solar system, it has the largest planetary ring in the solar system. Saturn's rings are divided into multiple parts, among which three are the most important rings: A ring, B ring, and C ring . From the outermost side of the A ring to the innermost side of the C ring is 125,000 kilometers, and 10 earths can be arranged side by side. Saturn is also the planet with the most moons in the solar system. So far, astronomers have discovered a total of 82 Saturn moons.
In addition, Saturn has a surprisingly best solar system. Saturn is the planet with the smallest average density in the solar system. The average density of Saturn is only 0.69 grams/ cubic centimeter . Its density is smaller than water, and even smaller than gasoline density (0.7~0.78 grams per cubic centimeter). If the ocean on Earth is big enough, Saturn can completely float in it!
Saturn's density is smaller than water
Saturn is the flattest planet in the solar system . Saturn's rotation speed is also very fast, with a rotation time of 10 hours, 33 minutes and 38 seconds. Saturn's rotation speed on the equator is about 10 kilometers per second. Saturn, which has a very low density and high-speed rotation, throws itself into an ellipsoid. Saturn's equatorial radius is 5,904 kilometers larger than the pole radius, and the flatness is 0.102.
Uranus
When we see Uranus, the first thing we think of is its "god skill". Uranus "lying down" orbits the sun.The so-called "lying down" refers to the rotation axis of Uranus being as inclination as 97.77°, which is the with the largest rotation axis inclination among the eight planets in the solar system of . In contrast, the earth's rotation axis inclination angle is only 23.44°.
Uranus
Uranus' "lying" has caused its North and South Poles to appear in the longest polar day and night phenomena in the solar system . Uranus is exposed to the sun for 42 years in one pole of day, while on the other side is the extreme night that lasts for 42 years.
Although Uranus is not the farthest planet from the sun, it is the coldest planet in the solar system . The minimum temperature of Uranus' top troposphere recorded by Voyager 2 is only 49K, which is -224.15℃. It is even colder than Neptune , which is farther from the sun.
Neptune
Neptune
Neptune is the farthest planet from the sun . Its average distance from the sun is about 4.5 billion kilometers, 30 times the average distance of the sun and the earth. Neptune is the farthest from the sun and naturally becomes the slowest planet in the solar system, with an average revolution speed of 5.48 kilometers per second; the longest planet with the longest revolution cycle of , with an orbital period of 164.8 years.
Nether Big Black Spot
In addition, on this blue planet there is the strongest storm in the solar system, Neptune Big Black Spot . Although the size of Neptune's big black spot is not as big as that of Jupiter's big red spot, its wind speed is very strong, making it the fastest wind speed in the solar system. Its wind speed reached 2100 km/h. In addition to the big black spots, the wind speed near Neptune's equator can also reach 1,200 km/h. On Earth, the maximum wind speed of a super typhoon with a level 17 is 220 km/h.
! Forgot our earth. So which solar systems are the best on Earth? Leave this question to everyone! Welcome to leave a message in the comment area and discuss it together!
Synchronous Video: Which solar systems are the best on the eight planets in ? Do you know what 20 counts in one breath?
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