Chapter 1687: Triton

Chapter 1861 Triton
Since Neptune is named after the sea in Roman mythology, its moons are all named after the lower sea god.
Triton is the largest natural satellite of Neptune and the first Neptune satellite to be discovered. On October 10, 1846, British astronomer William Russell discovered Triton. It is the only large satellite in the solar system with a retrograde orbit, and its orbit is opposite to the rotation of the planet.
With a diameter of 2706.8 kilometers, Triton is the seventh largest satellite in the solar system. It is the only satellite of Neptune that has enough mass to achieve hydrostatic balance. It is also the second largest satellite based on the mass ratio of the main planet. Second to the mass ratio of the moon to the earth. Due to its retrograde orbit and material composition similar to Pluto, Triton is considered to be a dwarf planet captured from the Kuiper belt.
Triton’s surface is mostly frozen nitrogen, and its outer shell is mostly water ice, with an icy mantle, and a core mainly composed of rocks and metals. The core accounts for two-thirds of its total mass. The average density is 2.061gcm3, indicating that it contains about 15-35% water ice.
During the flyby of Triton in 1989, Voyager 2 discovered that its surface temperature was 38K (-235°C) and also discovered active geysers. Among the spacecraft, only Voyager 2 has visited Triton. Triton is one of the few moons known to have active geological activities in the solar system (the others are Io, Europa, Enceladus, Titan).
Geological activities have caused Triton's surface to be relatively young, with almost no obvious impact craters. The complex low-temperature volcano and structural topography show its complicated geological history. On the part of Triton's surface, geysers eject sublimated nitrogen, thus forming a weak nitrogen atmosphere, the pressure of which is lower than 1/70,000 of the atmospheric pressure on the earth's sea level.
Since Triton’s surface shows a long history of melting, it is assumed that Triton’s internal model is divided into solid core, mantle, and crust like the Earth. Water is the most abundant volatile matter in the solar system. It forms Triton's mantle and envelops a core made of rocks and metals.
There are enough radioactive decay rocks inside Triton to maintain a liquid underground ocean, which is similar to Europa and many other outer icy objects in the solar system.
Scientists believe that this is not enough to drive convection in the icy crust of Triton. The strong sloping tides have generated enough extra heat to complete this process, as well as recent signs of surface geological activity.
The black material ejected from the surface of Triton is suspected of containing organic compounds. If there is liquid water in Triton, it is speculated that there may be an environment suitable for a certain life form.
While driving the spacecraft, Zhao Zhongyao told the children about Neptune and Triton. After listening to Feifei and Tiantian, they had a general understanding of Neptune and its largest satellite, Triton.
‘Dad, then we flew directly to Triton! Let's take a look at the sky above Neptune first. Feifei looked at his father and said.
After hearing Feifei’s words, Zhao Zhongyao said, ‘Since we are going to Neptune, of course, let’s take a look at what kind of planet Neptune itself is. ’
Hearing what Zhao Zhongyao said every day, he said with a smile, ‘Dad, let’s take a look at the spots on each king star first! I want to know what it is. ’
‘Okay, let’s study the spot first. Zhao Zhongyao said so too.
After hearing what her father and sister said, Feifei also felt interested in the spot on Neptune and wanted to see it.
‘Okay, let’s see what the spot is! Feifei said happily.
In this way, Zhao Zhongyao piloted the spacecraft and flew towards Neptune at an extremely fast speed.
About an hour later, Zhao Zhongyao and the others flew over Neptune.
Because Neptune is a gaseous planet, in the sky above Neptune, it feels like Neptune is like a huge balloon, and it is a huge blue balloon.
Originally, when you observe Neptune through an astronomical telescope on the earth, you can see some large black spots. But when Zhao Zhongyao and the others came to the sky above Neptune in the spacecraft, they couldn't see any spots at all.
‘Dad, why is there no spot on Neptune! Every day is still a little strange.
Feifei said incomprehensibly, ‘Yes! How can we not see the spot. ’
At this moment, Zhao Zhongyao thought for a while and said, ‘Maybe it’s because we are too close to Neptune! Big black spots should be places where the gas density in the atmosphere is relatively high. But this density can only be observed at a long distance. ’
After hearing what Zhao Zhongyao said, Feifei and Tiantian both nodded.
‘Dad, what shall we do now, do we have to fly back. Feifei looked at Zhao Zhongyao and said.
After hearing Feifei’s words, Zhao Zhongyao thought for a while and said, ‘It’s not necessary, let’s fly directly to Triton! I feel that as long as we fly to Triton, we should be able to observe the spot on Neptune. ’
After hearing what Zhao Zhongyao said, Feifei said, ‘Okay, let’s go directly to Triton! Is our destination this time Triton! ’
As a result, Zhao Zhongyao drove the spaceship again and flew towards Triton, and soon their spacecraft flew over Triton.
The distance between Triton and Neptune is 350,000 kilometers, which is about the same as the distance from the moon to the earth.
But Neptune is much larger than Earth. Looking at the earth from the moon, the earth is the size of a car. But when you look at Neptune in Triton, Neptune is almost equivalent to a big city.
When Zhao Zhongyao drove the spacecraft and flew over Triton, they could see the spot on Neptune clearly.
When they saw the spot, Zhao Zhongyao used the telescope on the spacecraft to carefully observe the spot on Neptune. After his research, he came to a conclusion. These spots are nothing but places with a relatively high atmospheric density above Neptune.
However, such places with relatively high density will change with the flow of the atmosphere. In fact, these places with relatively high atmospheric density are caused by the movement of air in the atmosphere on the surface of Neptune.
Because some air currents in Neptune's atmosphere are constantly flowing and changing, when two air currents or multiple air currents meet together, a vortex is formed.
The air density in the center of the vortex may be relatively small, but the air density around the vortex may be relatively large.
Therefore, this vortex looks like a spot from a distance. Of course, if you look at it up close, you won't feel its existence. After all, Neptune is very large, its gas surface is larger, and the large black spot formed on its gas surface is also very large. Any large black spot may be about the same size as the earth.
Human beings are very small in space. Only when the distance is far enough can we see some astronomical phenomena. If we are closer to this astronomical phenomenon, we will not be able to observe its existence.
This is like a famous verse we often say, ‘I don’t know the true face of Mount Lu, but I am only in this mountain. ’
After hearing Zhao Zhongyao's explanation, Feifei and Tiantian also felt very reasonable.
‘Dad, what you said is very reasonable. It seems that the cause of the spot on Neptune should be the reason. Feifei looked at Zhao Zhongyao and said.
‘Dad, now that we know the cause of the spot, can we go and see on Triton. Tian Tian also felt that what Zhao Zhongyao said was reasonable, and he didn't want to see any spots anymore, but only wanted to see Triton.
‘Okay, let’s take a look on Triton. After Zhao Zhongyao finished speaking, he drove the spaceship again and flew towards Triton's near surface. The latest chapter address of Super Military Scientist: https://EbookFREE.me/book/3175.htmlRead the full text of Super Military Scientist: https://EbookFREE.me/read/3175/Super Military Scientist txt download address: https://EbookFREE.me/down/3175.htmlSuper Military Scientist Mobile Reading: https://m.EbookFREE.me/read/3175/ In order to facilitate the next reading, you can click "Favorites" below to record the reading record of this time (Chapter 1687 Triton), and you can see it next time you open the bookshelf! If you like "Super Military Scientist", please recommend this book to your friends (QQ, blog, WeChat, etc.), thank you stand by! (EbookFREE.me)