The girl is Sidong, and the man is "Uncle Xiang", and the two people Lin Nan knows are father and daughter.

Uncle Xiang looked at the two cars entering the villa on the top of the mountain, and replied softly to his daughter, "Maybe they are going up to something." ”

Si Dong nodded obediently, no longer paying attention, and turned his gaze to the night sky in front of him.

Seeing his daughter turn her head, Uncle Xiang showed a wry smile.

Of course he knew that the two cars were definitely not going up there, what was the need to go to the villa? and it was so late.

If you want to come to those two cars, there must be someone with status, who came here to travel and was arranged by the boss here to rest.

It's a pity that there is a good astronomical environment!

Uncle Xiang sighed in his heart.

Uncle Xiang's name is Si Fangxiang, and he is an overseas Chinese born in Chinatown in Country M.

But because of the oriental blood in his bones, under the teaching of his father, Si Fangxiang has developed a strong interest in Huaxia since he was a child.

He often imagines what kind of country China is on the other side of the ocean.

Therefore, Si Fangxiang often looks up at the starry sky, because he likes to read books, and he knows the basic knowledge of the universe at a very young age.

He knew that the other side of the starry sky might be Huaxia.

Gradually, Si Fangxiang went further and further on the road of astronomy, and became more and more fascinated by the beautiful starry sky and the mysterious universe.

And his father was very supportive of his interest in this area.

However, Si Fangxiang's inner yearning for China is still increasing.

So after growing up, Si Fangxiang resolutely came to Huaxia.

The leaves returned to their roots, and Si Fangxiang quickly fell in love with this place.

And found a stable job until he got married and had children.

Even the name of the child was already thought of by him, whether it was a boy or a girl, it was called Sidong.

It means missing the East.

turned out to be a girl, so Si Fangxiang changed his name to Sidong.

Under the influence of his father, Sidong fell in love with reading and astronomy from an early age.

Interestingly, Lin Nan still didn't know that Sidong's current attainments in astronomy were far above him.

Lin Nan has the idea of doing charity and the Million Club, which can be said to have a lot to do with Sidong.

But astronomy just doesn't matter at all.

But fate is like that, and it's wonderful.

Some people are destined to have the same outlook on life and dreams and hobbies.

is also destined to meet and go to the end together.

......

But Lin Nan didn't know all this now, he had just gotten off the hilltop villa that Uncle Xiang longed for.

As soon as Lin Wolf and the others got out of the car, Principal Li came over and gave him the key to the villa.

And said with a smile: "Mr. Lin can live as long as he wants, there is everything in the villa, here is definitely the best place to watch the stars, the terrain is the highest, and no one will disturb you quietly."

In addition, I still have a little business, so I left first, Mr. Lin, your family has a good time here, and when you leave, just put the key at the ticket office at the foot of the mountain. ”

Timber Wolf naturally knew that he was fine, but he had to say that this man would indeed get things done.

He stepped forward to shake hands with him and replied with a smile: "Thank you very much Principal Li for your hospitality!"

Principal Li hurriedly replied, "You're welcome, you're welcome." ”

With that, he drove away.

Before leaving, he also helped close the big iron door outside the villa.

Only the Timberwolf family was left in the villa of Nuoda.

Ye Xinlan looked at her husband beside her, and now she is so respected wherever she goes.

She felt very secure.

Seeing her mother holding her father's arm, Lin Nan laughed happily.

Ran up and took the key from the wolf in his hand, and went to open the door of the villa.

The hilltop villa has two floors, about three or four hundred square meters, and at night, it gives people a light but luxurious feeling from the outside.

Although Lin Nan saw the villa for the first time, he was also a person who had been to the Wukesong Gymnasium in the capital and stayed at the StarWorld Hotel.

Therefore, I don't feel like the villa in front of me.

Roughly opening the door, Lin Nan ran to the second floor of the villa with a large box containing astronomical equipment.

As soon as he was outside, he saw that the balcony on the second floor should be the best place to place the astronomical telescope.

Lin Nan carefully took the disassembled equipment out of the box, and then slowly assembled it.

Today happens to be the middle of the month, so the moon in the sky is round and big.

Under the illumination of the moonlight, Lin Nan had no astigmatism and 2.0 vision to see very clearly.

There was no need to turn on the lights, and the astronomical telescope was quickly assembled.

Of course, on this night when the moonlight is very strong, you can only shoot the moon, because the starlight is covered by the moonlight, and the luminosity is too weak, and it is difficult to image in the mirror.

Lin Nan was very excited to take out his mobile phone, open the compass, and find due north.

Then align the polar axis of the equatorial mount with due north, and adjust the elevation angle of the equatorial mount according to the latitude of Qingshui County given by the predecessors in the starry sky group.

Next, the coaxial alignment of the primary mirror and the finderscope and the coarse polar axis are completed.

Lin Nan began to look for the big full moon in the sky with the help of the star finder.

Although Lin Nan has not yet entered astronomy, he is not a complete novice.

He naturally knew that he needed to use a star finderscope to find a shooting target, not that there was such a big moon in the sky, did he still need to find it?

For example, Lin Nan can see the entire night sky when he opens his eyes now, but from the leftmost bright spot (star) to the rightmost bright spot in Lin Nan's field of vision, there may be an unimaginable distance between them.

Tens of thousands of light-years? Or hundreds of thousands of light-years?

No one knows.

The field of view of the astronomical telescope is only how large, and if it is only roughly facing the moon, for a novice, it may not be possible to move the moon to his lens for a night.

This is where a finderscope with a wider field of view is needed.

Lin Nan found the little moon in the finderscope after a while, and adjusted the finderscope to move the moon to the middle.

Then I immediately went to see the main mirror excitedly.

Lin Nan thought in his heart that the beautiful moon and the mysterious moon pit were about to appear in his lens!

However, when Lin Nan looked at the astronomical telescope primary mirror, he found that there was a blurry white light in the eyepiece.

Lin Nan quickly thought that this was because there was no focus, so the image was blurry.

So, while staring at the image in the eyepiece, Lin Nan twisted the focusing handwheel, but found that it was getting more and more blurry.

Lin Nan immediately understood that the direction was reversed.

Then they turn in the opposite direction.

Soon, the images in the eyepiece became clearer and clearer.

After it was clear to a certain extent, Lin Nan twisted back and forth in a small area to find the clearest focus.

Finally, the "moon" has a more obvious outline in the eyepiece.

And Lin Nan also found that the moon was moving slowly in the camera.

This is because the Earth's rotation causes the Moon to rise in the east and set in the west, so it will slowly deviate from the field of vision.

This movement is not visible to the naked eye, but it is more noticeable in telescopes.

It's like you can observe the movement of the second hand on a clock, but you can't notice the movement of the hour hand.

That's exactly what the moon is.

And Lin Nan also learned from the Internet that a good equatorial mount will have electric tracking, but the price will be more expensive.

Therefore, Lin Nan could only follow with his hands, slowly adjusting with the deviation of the moon.

Looking at the "moon" in the eyepiece, there is basically only a circular outline, which is very bright, but it is too blurry, and it is completely incomparable with the photos sent by Lin Nan who saw his predecessors in the starry sky group.

People who don't even know can't tell that this is the moon when they look at it.

Lin Nan's excitement just now almost disappeared, and he didn't have the slightest idea of letting his parents who were looking forward to him come over and take a look.

He really felt that he couldn't take it, and the images on this eyepiece were not as clear as Lin Nan's naked eye.

Lin Nan looked at the full moon in the night sky, squinting his eyes and almost seeing the black part of the yellow.

He knew it was a moon pit or a crater on the moon.

But the imaging in the eyepiece can't tell anything.

Lin Nan was a little frustrated, he had used everything he knew so far, but what he got was this unsatisfactory result.

The corners of the mouth that had been raised on the youthful face slowly turned calm.

In fact, if Uncle Xiang was here, he would definitely feel that Lin Nan was already very good.

Even when he saw in the group, Lin Nan had only been in contact with astrophotography for two weeks, so he bought a set of seven or eight thousand complete equipment.

At that time, I felt that Lin Nan's step was too fast.

You know, most astronomy enthusiasts start with observations, that is, just take a telescope to look at.

There are very few equatorial mounts and cameras like Lin Nan.

According to Uncle Xiang's speculation, it would be good if Lin Nan could get the moon into the eyepiece of the astronomical telescope.

He didn't expect Lin Nan to be able to adjust the equatorial mount well.

But young and vigorous.

Lin Nan won the championship of the National High School Basketball League in one year, although he didn't show anything on his face, he was very proud in his heart.

Lin Nan also knew that his father helped him a lot in basketball.

And now that he's in touch with astrophotography, he's basically on his own.

But Lin Nan believes in his ability to learn.

He thought that photographing the moon was just a very simple thing that he could do in a short time.

The starry sky is his goal.

The results are now ......

The timber wolves on the side were all in their eyes.

Lin Wolf saw Lin Nan in a hurry at first, step by step, and his expression was also very excited.

Now that he hadn't moved for a few minutes, he thought that Lin Nan must have encountered a problem.

At first, Lin Wolf guessed that Lin Nan might be too ambitious, and set a goal that he couldn't accomplish.

But soon Timber Wolf felt that this should not be the case.

He knows his son very well, and now Lin Nan has his own pride, but he will not know his level.

Therefore, Lin Wolf speculated that Lin Nan should have not laid a good foundation, and there was a problem somewhere in astronomy, which led to the interruption of the current progress.

Thinking of this, the wolf stepped forward to his son and said, "Nan Nan, do you remember the story I told you about the growth of the big tree? No matter what you do, the foundation is the most important. ”

Hearing this, Lin Nan instantly walked away from his frustration and began to think.

Yes, the foundation is important.

But there should be no problem with his equipment!

So what's the problem?

Lin Nan thought about it from beginning to end.

"Ding!" Lin Nan's mind seemed to suddenly ring a bell.

He knows what the problem is, and the problem is in the moon!