After scanning the QR code, Doma Mai couldn't help but blink slightly. She didn't expect that this star map software was so large.
Fortunately, it is still the beginning of the month and Domama has plenty of data. Thinking of the slow speed of the wireless network in the hotel, Domama made up her mind and chose to download.
Although Japan has unlimited data plans, the prices of such plans are really too expensive. Doma Yui only uses a plan of more than 2,000 yen, so she still has to use data sparingly.
The network in the courtyard seems to be much better than that in the room. When using data to browse Twitter in the room, it feels a bit laggy, but in the courtyard, the download speed can reach more than 100 megabits per second.
Half a minute later, the star map software was downloaded. Domama couldn't wait to install it and turned on Bluetooth.
"Hey, what are you connecting my phone for? Connecting to the telescope?" Yushan Heren couldn't help but ask as he saw a Bluetooth connection suddenly appear on the phone.
"She just connected it accidentally!" Tsuchima couldn't help but pout and re-selected the connection device.
After pairing is completed, the telescope information is displayed on the mobile phone, and it automatically jumps to the North Star interface.
After swiping right to exit the interface, a star map appears, and the sun in the corner is particularly conspicuous.
Doma Mai tried to click on the sun, but a long string of prompts popped up on the screen. The prompts were all in English. Doma Mai tried hard to decipher them, but could only understand part of them.
"Senior scumbag, what does this hint mean?" Tsuchima Mai couldn't help but ask.
Yushan Kazuto blinked slightly and looked at Tsuchima's phone: "You want to observe the sun again?"
"Mamoru-chan saw the sun in the star map, so she tried to click on it." Mamoru-chan pouted.
"What this prompt means is, have you confirmed that your telescope is equipped with a filter that can filter out most of the sunlight?" Yushan Kazuto said with a slight blink.
Ordinary telescopes cannot be used to observe the sun directly. Doing so may directly hurt your eyes, causing permanent damage or even blindness. This is not just talk.
However, after installing professional light filtering equipment, it can be observed, but it is not highly recommended to watch it.
After all, even with professional sunlight filtering equipment, looking at the sun for a while will still make your eyes sore and uncomfortable.
Moreover, the light filtering equipment purchased by many people is actually not enough to filter sunlight, so before using it, you must check carefully whether your equipment can filter sunlight.
"Isn't it on this telescope?" said Domama, blinking.
"No." Yushan Kazuto shrugged.
The telescope does have a built-in filter device, but it is mainly used to filter out stray light to ensure clearer observation of stars, and it cannot filter out sunlight.
The device for filtering sunlight is usually external, but this time, the housekeeper obviously did not bring it.
"Okay." Tsuchimiya blinked and had to give up observing the sun and start choosing stars again.
Yushan Kazuto also breathed a sigh of relief and sat on the mat nearby, watching the sunset silently.
After all, it was dusk and the sunlight was not that strong.
A telescope cannot directly observe the sun, but with the naked eye, you can enjoy the beauty of the sunset.
But in fact, it is not recommended to watch the sunset for a long time.
After all, the sun is the closest luminous body to the earth. If you observe it for too long, your eyes will always feel uncomfortable.
……
As night fell, Tsuchiya was still in the courtyard, happily observing the starry sky.
Telescope upside down
, Tujian Mai also discovered it.
But she was not particularly surprised. After all, the starry sky scene in the telescope was something she had never seen before.
This situation will not cause cognitive differences.
If she had seen this kind of upside-down pattern when looking at portraits, trees, or something like that, she might have felt a little dizzy.
This process lasted for more than two hours, and Tsuchima felt that she seemed to have discovered something more interesting than the game.
Although we can see the specific conditions on the major planets through the telescope, we still cannot see clearly.
But in Doma's mind, she had been fantasizing about the scenery on these planets, wondering whether there were aliens on these planets.
However, she seemed to have forgotten one thing: these planets were stars, and it was basically impossible for life to exist there.
The existence of life in stars is probably beyond the imagination of humans.
When seeing an interesting celestial body, Doma Yui would ask Yuyama Kazuto to come over and observe it together.
Although Kazuto Yuyama has basically seen these celestial bodies, he also has a millimeter-wave telescope in his hometown in Chiba. Compared with this telescope, he can see much more information, but he still happily watches with Yui Doma.
As the two of them watched, a petite figure walked into the courtyard behind them.
Chapter 1958 Saturn's Rings
"Sagiri, why did you come out?" Kazuto Yuyama couldn't help but ask when he noticed Sagiri Izumi quietly walking out of the room.
Izumi Sagiri didn't say anything, but she kept staring at the astronomical telescope in the center of the courtyard. Obviously, she was also interested in observing the starry sky.
On the side, when Yushan Kazuto spoke, Tsuchima Mai was startled, and her chattering mouth stopped. She turned around with a smile and looked at Izumi Sagiri: "Sagiri, is the work finished?"
Izumi Sagiri blinked slightly and nodded.
Because she was very interested in the astronomical telescope in the courtyard, Izumi Sagiri couldn't help but speed up the drawing process. She had just sent her work to the mailbox of the competition committee for review.
"That's perfect. Senior Kazuto and I are observing the rings of Saturn. Sagiri, you can come and take a look." Doma Mai took the initiative to invite.
Izumi Sagiri's eyes had already betrayed her purpose. Seeing that Tsuchima Mai took the initiative to invite her, Izumi Sagiri couldn't help feeling a little embarrassed, but she still nodded and walked towards Tsuchima Mai.
"This is the eyepiece. Just focus your eyes on the center of the eyepiece and you can observe Saturn. Remember not to close your eyes!" said Doma Mai with a smile.
Yushan Kazuto couldn't help but blink slightly. Wasn't Doma Mei just telling the embarrassing things she had done in a disguised way?
However, Izumi Sagiri obviously did not notice this detail. She walked to the eyepiece and started observing.
"Can you see it?" asked Domama with a smile.
Izumi Sagiri responded. Although the image in her field of vision was a little shaky, it still looked relatively clear.
"It is said that anyone who can see the rings of Saturn can be happy for the rest of his life!" said Doma Mai with a smile.
Izumi Sagiri couldn't help but feel moved. For some reason, the figure of Yushan Kazuto appeared in her mind.
"It is normal if there is some jitter in the field of view. This is because the turbulence of the low-pressure atmosphere reduces the stability of the stars."
"In astronomy, there is a term called seeing, which refers to the clarity of the image displayed by the telescope under the influence of various factors."
Doma Mai stood next to Izumi Sagiri and explained in detail.
Although these things were actually what she heard from Yushan Heren just now, she herself still had only a limited understanding of them!
However, this does not prevent Doma Yui from showing off a little in front of Izumi Sagiri.
Yushan Kazuto did not intend to expose Doma Mai, but just stood aside and listened quietly.
Today's weather is clear and the air quality is high. Karuizawa is located in a plateau area, so the seeing temperature is actually quite good.
If it were in Tokyo, the shaking of the starry sky in our field of vision might be more frequent.
"There's a big gap in the center of Saturn's rings, Sagiri, can you see it?"
After introducing the seeing degree, Tsuchima brought the topic back to Saturn.
Izumi Sagiri responded. Although her vision was a little shaky, she could still see the huge gap in Saturn's rings.
"That's called the Cassini Divide, located between Saturn's A and B rings, and is about five thousand kilometers wide," Doma continued to explain.
"Ring A, Ring B?" Izumi Sagiri was a little confused.
"They are the different rings of Saturn. I heard that there are seven rings in total. From the inside to the outside, they are the D ring, C ring, B ring, A ring, F ring, G ring and E ring. However, the only two rings we can see clearly now are AB." said Doma.
These were also what Yushan Kazuto had just told her. Doma Mei's ability of instant memory was still very good, otherwise it would not have been possible for her to have such a good effect by cramming before the exam.
Izumi Sagiri blinked and nodded.
"Take a close look at Ring A, which is the ring of light outside the Cassini Division." said Tsuchima.
Hearing this, Izumi Sagiri began to observe carefully.
"Can you still see a small gap on Saturn's A ring?" asked Domama.
Izumi Sagiri blinked, took a closer look, and sure enough, she saw a very tiny crack.
That crack is not as wide as the Cassini Division, and its color is not as obvious as the Cassini Division. If you don't look carefully, you can't see it.
"That's called the Encke Gap. It's about 325 kilometers wide, only a dozen times wider than the Garnier Gap," said Doma.
Izumi Sagiri did not respond, but just observed quietly.
Although Saturn in the field of vision has been shaking a little, the human eye's ability to capture instantaneous images is still very strong. Combined with the brain's additional imagination, a picture of Saturn appears in the mind.
As a painter, Sagiri Izumi has no need to worry about her imagination in the pattern. A magnificent and dreamy picture of Saturn has already appeared in Sagiri Izumi's mind.
"There are a few satellites of Saturn nearby that can be observed, but we can only see a few points of light." said Domama.
"Okay, after looking at Saturn, let's move on to Jupiter. It seems that we can see Jupiter's Great Red Spot today!" Yushan Kazuto said.
"Great Red Spot?" Izumi Sagiri raised her head, blinked her eyes, and looked at Yushan Kazuto: "The special terrain on Jupiter?"
"No, the Great Red Spot is a giant storm cyclone on Jupiter, with a north-south diameter of about 14,000 kilometers, while the diameter of our Earth is only more than 12,700 kilometers." Yushan Heren said.
Hearing this, Izumi Sagiri couldn't help but feel a little surprised.
She didn't expect that a cyclone on Jupiter could be larger than the entire Earth.
But in fact, the depth of the Great Red Spot is about 350 kilometers to 500 kilometers. In terms of volume, the Great Red Spot is still smaller than the Earth.
"According to astronomical observations, the Great Red Spot is actually shrinking year by year due to the influence of Jupiter's atmospheric activity. It may disappear in a few decades," said Yushan Heren.
Upon hearing this, Doma Mai and Izumi Sagiri couldn't help but feel a little nervous.
Thinking that what they were about to observe was a scene that would disappear soon, the two of them couldn't help feeling a little anxious.
From a cosmic perspective, decades really pass in a flash. Perhaps before the Great Red Spot, there were already larger storm cyclones on Jupiter. Or perhaps decades later, a super cyclone even more majestic than the Great Red Spot will appear in another part of Jupiter.
For Jupiter, cyclones like the Great Red Spot may be commonplace.
Little do people know that, for humans, a span of several decades is already half a lifetime, and there is no need to observe so eagerly.
However, this time we have the opportunity to directly observe Jupiter's Great Red Spot, and Yushan Kazuto is also quite interested.
He had seen Jupiter many times and had even checked the time, hoping to find an opportunity to observe Jupiter's Great Red Spot.
However, the weather was not good during those times. It was either cloudy or rainy.
Once, Yushan and others set the alarm at four in the middle of the night to observe Jupiter's Great Red Spot. As soon as they opened the window, their enthusiasm was extinguished by the rain outside.
Although a millimeter-wave telescope was installed later, the observation of Jupiter was put on hold.
Chapter 1959 On the Road
After soaking in the hot spring at night, Doma Mai and Izumi Sagiri both slept soundly.
Although watching the starry sky does not require much physical energy, it is still quite demanding on the brain.
Moreover, when watching the starry sky, Doma Mai and Izumi Sagiri were always in a relatively excited state.
This state is also quite exhausting for the spirit. You don't feel it when the state is still there, but it is very obvious when the state subsides. In fact, the two of them felt a little groggy just when they were taking a bath.
Yushan and others were not affected much. After all, he had basically observed the starry sky that he saw tonight.
The only thing that surprised him was Jupiter's Great Red Spot.
However, through the telescope, one can only see a rough outline of it, which is far from being as magnificent and colorful as those later patterns.
Looking at the two people who had fallen into deep sleep, Yushan Kazuto couldn't help but smile.
It turns out that Tu Jianbu was still clamoring to wait for the moon to come out and observe the moon phases!
Although Izumi Sagiri didn't say anything, it was obvious that she had the same idea.
The moon hasn't even appeared yet, but the two of them have already fallen asleep. No one knows where they got the confidence to shout before.
Taking a deep breath, Yushan Kazuto also closed his eyes.
After all, we have to set off for Shiraito Falls early tomorrow morning.
Although the waterfall is not very far away, and it is not the kind of spectacular sight that makes you think the Milky Way is falling from the sky, it is still necessary to maintain a good mental state to appreciate it.
As the night deepened, Yushan and Ren gradually fell asleep.
……
