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To put it simply, it is affected by the intersection of yellow and red.
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; And in the geocentric heaven, the angle of intersection between the equatorial plane and the ecliptic plane of the celestial sphere is 23 and a half degrees.
On the ball, it is manifested as the intersection angle of the ecliptic and the celestial equator, and is called the intersection angle of the yellow 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 is 23°26 away from the celestial equator, which is called the great elongation of the yellow and the red sky, 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, since the yellow-ecliptic angle is 23°26, then, the deviation of the celestial pole from the ecliptic pole must also be 23°26.
Hope it works for you.
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The revolution of the earth can be said without lying down. The plane of the Earth's revolution around the Sun (the ecliptic plane) is very close to the plane of the orbit of other planets, and the angle does not exceed 7°.
But the rotation is indeed crooked (it is not appropriate to say lying down, Uranus is lying down, the yellow and red angle is 97 °, the little brother of the earth), the earth's axis and the orbital plane of the revolution are, and the current mainstream view is that the earth was distorted after a violent collision in the early days of its formation, which also gave rise to the moon. The fact that the rotation of the stars in the solar system is more complicated (the revolution is in the same direction) is also somewhat proven.
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It must be affected by the gravitational pull of the moon.
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The direction of the Earth's revolution coincides with the direction of the Earth's rotation, both from west to east. When the earth rotates, the phenomenon of the alternation of seasons occurs on the earth because the position of the direct point of the sun's rays on the earth is different.
1. According to the difference in the height of the sun, it is divided into five zones: northern cold, northern temperature, tropical, southern temperature, and southern cold;
2. According to the time difference of how much heat is obtained, the four seasons are divided: spring, summer, autumn and winter;
3. The change of the length of day and night;
4. Changes in the position of celestial phenomena; The phenomenon of the law of biological growth.
1. The phenomenon of diurnal alternation;
2. Various motion rotation phenomena caused by geostrophic deflection forces in the northern and southern hemispheres;
3. The phenomenon of time difference in the eastern and western regions, and the phenomenon of biological work and rest.
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Hello! "Earth's rotation" simply describes the Earth's own orbit around the Sun, and there are two types: solar days and sidereal days, which rotate once every 24 hours relative to the position of the sun; Relative to the position of the star, it rotates once every 23 hours and 56 minutes, which is the basis of the current time scale, the origin of the solar day and the stellar day length, and the reason for the appearance of the earth's morning, day, twilight and night. The concept of "Earth's rotation" reveals the natural phenomenon that "the Earth is rotating".
The Earth rotates from west to east around its axis of rotation. Earth's rotation is an important form of motion of the Earth, with an average angular velocity of rotation of radians of seconds and a linear velocity of rotation of 465 meters and seconds at the Earth's equator.
In general, the rotation of the earth is uniform. However, precise astronomical observations have shown that there are three different variations in the Earth's rotation. It takes 23 hours, 56 minutes and 4 seconds for the Earth to rotate around the Earth, and the rotation cycle increases or decreases by 3 to 4 thousandths of a second every 10 years.
The revolution of the earth is the movement of the earth around the sun. Because the earth circles the sun along with other celestial bodies in the solar system, the sun is the central celestial body they share, so it is called "revolution". Just as the rotation of the earth has its own unique regularity, the rotation of the earth is caused by the gravitational field of the sun as well as the action of rotation.
The rotation of the earth also has its own laws. The revolution of the earth is a periodic circular motion, therefore, the speed of the earth includes two aspects: angular velocity and linear velocity. If we use the sidereal year as the Earth's orbital period, then the average angular velocity of the Earth's revolution is 360° per year, that is, after 360° of the Earth's revolution on the day, which is about 59 8 per day.
The total length of the Earth's orbit is 940,000,000 km, therefore, the average speed of the Earth's revolution is 100 million km per year, that is, after the Sun the Earth has revolutionized 100 million km, that is, km per second, about 30 km per second (linear velocity = 940,000,000km 365 days = 940,000,000 seconds (365x24x3600) seconds = km (approximate 30 km seconds).
Thanks for reading!
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If the Earth's axis of rotation were perpendicular to the plane of its orbit, then there would be the following changes compared to now:
The seasons disappear on the earth, and there will be no change of seasons.
The annual range of temperature at the same latitude decreases. Atmospheric rings and ocean currents change, and there is no annual cycle.
The direct point of the sun is always at the equator, and the sun rises and sets at the same time on the earth at the same longitude.
Except for the poles, day and night are equinoxed everywhere on Earth, with sunrise at 6 o'clock and sunset at 6 o'clock local time. The two poles of the Sun are forever circling the horizon. There is no polar day and night.
Yes, frictionless motion does not require force to maintain, so the revolution of the earth has nothing to do with the sun. Assuming that the gravitational pull of the Sun could cause the Earth to accelerate from a standstill, the Earth would have to continue to accelerate, not as it does now. If it really all started at rest, there would be only the sun left in the solar system, because everything fell into it. >>>More
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