What is Yellow Red Intersection and about Yellow Red Junction?

The yellow-equatorial angle is the angle between the Earth's orbital plane (ecliptic plane) and the equatorial plane (celestial equatorial plane).

It's said in this book.

It's basically the same as upstairs.

The second reason for the hail is that if the yellow-red angle becomes smaller, then the position of the direct point of the sun will also change accordingly, and the direct point will be closer to the equator, because the yellow-red angle will become smaller, which will cause the Tropic of Cancer to move closer to the equator, and the north and south pole lines will shrink to the north and south poles respectively. As a result, the amount of heat gained by the surface changes with time and space.

As a result, the range of tropical and cold zones is reduced, and the range of temperate zones is enlarged. Since the polar range is reduced, the range of the polar day and night will also be reduced.

That is, if the angle of yellow-red intersection becomes smaller, then the range within the line of return will also decrease.

The Tropic of Cancer will still produce relative movement. That is, the Tropic of Cancer moves south, while the Tropic of Cancer moves north.

1. The yellow-equatorial angle refers to the intersection angle between the earth's orbital plane (ecliptic plane) and the equatorial segment (celestial equatorial plane), also known as the solar declination angle or the yellow equatorial elongation. The angle of the Earth's rpm around the Sun is about 23°26. The existence of the yellow-red angle has important astronomical and geographical significance, and it is the fundamental reason for the change of the four seasons and the distinction of the five zones on the earth.

2. Due to the existence of the yellow-red angle, the annual change of the direct sunlight point moving back and forth between the north and south latitudes of the earth is 23°26, and the seasonal change of the noon sun height and the length of day and night are caused by the burning of the shirt, and the lack of cavity causes the seasonal change of the yellow and red angle on the earth and the amount of solar energy obtained in various places, so as to form the replacement of the four seasons.

3. If the angle between yellow and red is 0 degrees, the sun will always shine directly on the equator, and the higher latitudes in the northern hemisphere will not be able to mature due to lack of heat, and the crop cultivation boundary will move southward.

The yellow-eclipse angle is the angle of intersection between the earth's orbital plane (ecliptic plane) and the equatorial plane (celestial equatorial plane), also known as the solar declination angle or the equatorial elongation of the yellow-red elongation. The angle of the Earth's rpm around the Sun is about 23°26'.The yellow-red angle is not constant or quiet, it has always had small changes, but because the changes are so small, people generally ignore them.

The change of the yellow-red angle is mainly due to the effect of the gravitational pull of the moon. The gravitational pull of the Moon on the Earth creates a tendency for the Earth's axis to become perpendicular to the Earth-Moon line. (But because the earth is rotating and has a lot of inertia, the earth's axis will not be pulled by the moon at once, but will produce a kind of precession, which is the cause of precession.)

The Moon moves sometimes north of the ecliptic and sometimes south of the ecliptic, which causes the Earth's axis to swing. That is, there will be a swing at the yellow-red corner.

The ecliptic angle (also known as: ecliptic angle) is the angle of intersection between the earth's orbital plane (ecliptic plane) and the equatorial plane (celestial equatorial plane), also known as the ecliptic elongation. The current angle of the Earth's yellow-red intersection is about 23°26'。

The yellow-red angle is not constant, it has been changing slightly, but it is negligible for a short time because the change is small.

The angle between the orbital plane of the Earth's revolution (the ecliptic plane) and the Earth's equatorial plane is the yellow equatorial angle. There is a slow change in the yellow-red corner, which is due to the change in the position of the vernal equinox. The range of the yellow-red angle is 22°00 to 24°30, and the period of change is about years.

The last time the minimum value of the yellow-red intersection angle was about 10,000 years ago.

The Earth's axis of rotation (Earth's axis) is tilted at 66°34 from the orbital plane of its revolution. This relationship between the rotation of the Earth and its revolution is usually expressed in astronomy and geography by its co-angle (23°26), i.e., the angle of intersection between the equatorial plane and the orbital plane; On the geocentric celestial sphere, it is manifested as the intersection angle of the ecliptic and the celestial equator, and is called the intersection angle of the yellow and red equator, also known as"Yellow red large distance"。The two nodes of the ecliptic and the celestial equator, called the first point of the Aries house (Aries) and the first point of the Libra house (Libra), are called the spring equinox and the autumn equinox respectively in the northern hemisphere, and are collectively called the equinox.

The two farthest points on the ecliptic from the celestial equator are called the first point of the Cancer house (Cancer) and the first point of the Capricorn house (Capricorn), that is, the summer solstice and winter solstice points in the northern hemisphere, collectively called the second solstice. The second solstice point is the equator of the sky, called the great distance of the yellow and red points, which is the manifestation of the intersection of the yellow horns on the geocentric celestial sphere.

The yellow-red angle on the celestial sphere also shows the deviation of the north and south celestial poles from the north and south yellow poles. The celestial axis is perpendicular to the equatorial plane, and the yellow axis is perpendicular to the ecliptic plane.

The yellow and red angles are related to the gravitational attraction between celestial bodies. According to the principle of gravitation, f=g*m1m2 r*r. Due to the large amount of celestial bodies and their attraction to each other, they will produce yellow-red angles. The nine planets of the solar system all have yellow and red angles.