Why is there a total solar eclipse? When will a total solar eclipse occur?

Total solar eclipse. It is a type of solar eclipse, that is, the astronomical phenomenon in which the sun is completely obscured by the moon. If the sun, the moon.

The three of the earth are exactly aligned or close to a straight line, the moon blocks the sunlight that shoots to the earth, and the black shadow behind the moon falls exactly on the earth, and the solar eclipse phenomenon occurs.

People in the moon shadow on the earth began to see the sun gradually weakening, the sun surface was obscured by a round black shadow, and the sky turned dark, when it was completely obscured, the sky was in the sky.

The brightest stars and planets can be seen, and after a few minutes, the sun gradually emerges from the edge of the moon's dark shadow and begins to glow and recircle. Since the Moon is smaller than the Earth, only people in the shadow of the Moon will be able to see a total solar eclipse.

In the case of the Earth, solar eclipses occur every year, but not in the same place.

The coverage of a total solar eclipse is small, so the interval between seeing a solar eclipse in the same place will be very long, especially a total solar eclipse.

Eclipses occur periodically (in the same place). every.

The Sun, Moon, and Earth will return to almost exactly the same relative positions as before. This period is equivalent to 18

Year (if there are 5 in this period.)

A leap year is 18

year). Thus, 18 after a solar or lunar eclipse

Year or day, another solar or lunar eclipse will occur. The cycle of solar and lunar eclipses is called the "Sharo cycle" and was discovered by the ancient Babylonians. "Sharo" means repetition and restoration in the Babylonian language.

A total solar eclipse is because the moon turns between the earth and the sun, blocking the sunlight that is coming to the earth, so the sun will not be visible during a total solar eclipse. In addition, the principle of a total lunar eclipse is the same, the earth turns to the middle of the moon and the sun, and the moon cannot reflect the sun's light.

The moon obscures the sun's brilliance.

Why: How did a rare astronomical phenomenon, a total solar eclipse, come about? Check it out.

The process of a total solar eclipse can include the following five periods: the first loss, the eclipse, the eclipse, the light, and the rebirth.

Since the Moon orbits the Earth from west to east, solar eclipses always begin at the western edge of the Sun's circle. When the eastern edge of the moon first touches the circular surface of the sun (that is, the moment when the eastern edge of the lunar surface and the western edge of the lunar surface are tangent), it is called the first wancing. The first waning is the moment when the eclipse process begins.

Since the beginning of the food loss, it is the partial food stage. As the moon continues to move eastward, the part of the sun's circle that is obscured by the moon gradually increases, and the intensity and heat of sunlight decrease significantly. When the eastern edge of the lunar surface is intangent to the eastern edge of the solar surface, it is called an eclipse.

At this time, the entire circle of the sun is obscured, so the eclipse is the moment when the total solar eclipse begins.

When the sun is about to be completely blocked by the moon, an arc of diamond-like light will suddenly appear on the eastern edge of the sun's surface, like the eye-catching sparkling light on the diamond ring, which is the diamond ring, and at the same time form a string of luminous highlights in an instant, like a string of brilliant pearls hanging high in the dark sky, this phenomenon is called pearl eclipse, the British astronomer Berry first described this phenomenon, so it is also called Pellet pearls. This is due to the fact that there are many rugged peaks on the surface of the moon, and when sunlight hits the edge of the moon, the phenomenon of Bere-bead is formed. The time for the pearl to appear is very short, usually only a second or two, and then the sunlight is completely obscured and a total solar eclipse occurs.

The Moon does not emit light 1 opaquely; The sun, earth, and moon will be in a straight line.

When the moon completely obscures out the sun's rays.

So-called"food"It refers to the astronomical spectacle in which a celestial body is completely or partially obscured by another celestial body or its dark shadow. There are three main types of solar eclipses: total solar eclipses, partial solar eclipses, and annular solar eclipses. Solar eclipses occur on the principle that parts of the Earth are obscured by the shadow of the moon.

The eclipse must occur on the New Year's Day, the first day of the lunar calendar. This is because only on that day will the Moon appear on the line between the Sun and the Earth, so that it is possible for the Moon to block the Sun and form a solar eclipse. Similarly, a lunar eclipse must occur on the 15th day of the lunar calendar.