Why do people think of stars as having 5 corners?

Because the stars are five horns.

The standard five-pointed star drawing method is built in a large 4*4 square, and the specific drawing steps are as follows:

1. Draw a large 4*4 square in a plane and connect diagonal lines with each other.

2. Draw a straight line based on the diagonal intersection of two small squares in the middle of the second row.

3. Look at the bottom 8 small squares as 2 middle squares and find the center point.

4. Find the midpoint at the top of the big square, connect the center point of the middle square and extend it as a basis.

5. Connect the remaining two edges of the pentagram to complete.

Why are the stars always drawn in the shape of five-pointed stars? It's because the pentagram is the best to draw, the pentagram is the regular star-shaped polygon with the fewest sides, and it's the easiest to draw, hehe, just kidding, how can it be this funny answer? In fact, we can answer this question from the aspects of astronomy, mathematics and physiology.

Astronomy

Everything in the celestial bodies is quite mysterious, and the ancestors of the Two Rivers Valley discovered that the brightest position of Venus in the sky was actually a perfect pentagram. We all know that the Earth revolves around the Sun for 8 times, and Venus revolves around the Sun for exactly 13 times, so when we look at the Earth through an astronomical telescope, Venus looks like a pentagram in the sky around the Sun.

Mathematics

In terms of mathematics, as early as the 6th century B.C., scholars of the Pythagorean school of ancient Greek mathematicians found that the pentagram was closely related to the division. Only the five-pointed star is the most in line with the ** division ratio, which looks the best and is the most coordinated.

As long as we pay a little attention, we can find 4 lengths of line segments on the pentagram, and arrange these 4 line segments in order from small to large, so the ratio of any adjacent two lengths is just the first ratio, which is really a wonderful thing.

Biology

Let's look at the most important biological aspect, the stars we see are with horns, and as for the specific horns, each of us sees the situation differently. Why is this so? In fact, because light is wave-like, when the light from a distant light source passes through a gap or bypasses an object, the light will be diffracted and cause mutual interference, leaving a gap or the imprint of the object.

Some people will say that stars are just tiny dots, but we need to know that when the light emitted by the star reaches our retina, it will take on the shape of a star for the above reasons.

Each of us in the world has a different pair of eyes, and each pair of eyes will see a different shape of the star, depending on the condition of the sutures in each of our own eyes.

When we look at the starry sky, we see stars all in the shape of horns, and the stars we see are different for each person, so we will draw the stars in the shape of horns.

It's pretty, but you can draw a non-pentagonal one.

You thought the stars were round? Of course it's 5 corners

The ancient people were not technologically developed, and the stars were observed with the naked eye, which was five horns. Religious beliefs and aesthetics are not excluded.

I grew up seeing that the stars in the paintings were all pentagonal, and then I wondered why I had to draw the stars in a pentagonal shape, why not draw them in a hexagonal or circular shape, maybe it was relatively simple!

Since childhood, painting stars is a five-pointed star, of course, when I was a child, I didn't know why I painted stars like this! When I grew up, I realized that in fact, the stars don't look like this at all, they are all planets. Most of the self-luminous stars in the sky are stars.

Of course, I had to borrow a telescope to look at the stars, and in the end I found that they were almost all like a few horned stars.

The most fundamental reason for this is that light is wavy, and when the light from the star's light source passes through a gap or around an object, the light will be diffracted and cause mutual interference.

It is caused by the reflection and refraction of light rays as they pass through a gap or around an object. In addition to the subtle defects in the lens of our eyes, called sutures, are where the lens fibers meet. When light passes through the eyes, it leaves a special imprint and takes on the shape of a star on our retina.

Finally, the stars that everyone sees may be different, which is also due to the uniqueness of our eyes.

The stars you draw will be different from the stars I draw!

In the end, I didn't explain why it was a five-pointed star instead of a four-pointed star, but I guessed that the reason why it was painted was because the stars in the night sky that we saw after darkness were exactly like that. Of course, seeing is believing, and it is easier to draw a pentagram with a pentagram, or the popularity of pentagram is higher, and people's imitation power is also strong, so most of the stars are imitated like this. Do you dare to say that you didn't draw stars like this when you were a child?

The celestial sign pentagram is superior to other polyangular star shapes!