Heliocentric(sun-centered)and Geocentric(earth centered) were too different theories about the motions of the stars and planets. In the heliocentric view the sun is fixed and the earth(as well as the other planets) revolve around the sun in elliptical orbits. In the geocentric view, the earth is fixed and the sun and the other planets rotate around the earth. Since one cannot define a permanent origin and coordinate system in nature both views are correct(this may sound odd to people who were born after the time of Kepler but just hear me out). Since the definition of an inertial reference frame is arbitrary(as shown by Einstein's theory of relativity) one can set the earth or the sun in the center of that reference frame. If one were to use the sun as the center of the reference frame, the earth(and the other planets) follow simple elliptical orbits that are easy to compute and understand. On the other hand if one were to use the earth as the center of the reference frame, then the sun and the other planets no longer follow nice easily solvable orbits(also the concept of gravity resulting in planetary orbits gets thrown out the window), however the predictions of orbit are the same. Simply put: The sun is considered the center because its gravity combined with planetary inertia is what is understood to create the orbits that we see today. Hope you found that interesting
Unlike Earth and other solid objects, the entire Sun doesn't rotate at the same rate of gas and plasma, different parts of the Sun spin at different rates.
Unlike Earth and other solid objects, the entire Sun doesn't rotate at the same rate of gas and plasma, different parts of the Sun spin at different rates.
The weird thing about the Sun's rotation - as compared to Earth's rotation - is precisely that it is a differential rotation. That means that at the equator, the Sun rotates faster than near the poles. There is some recent evidence that the inner and outer cores of Earth do indeed spin at different rates and at different rates compared with the rest of the planet.
because of the sun
When the earth moves, the sun is left behind, so half of the earth is not facing the sun. Dumbo
The sun is at different point of the earth.
Unlike Earth and other solid objects, the entire Sun doesn't rotate at the same rate of gas and plasma, different parts of the Sun spin at different rates.
Unlike Earth and other solid objects, the entire Sun doesn't rotate at the same rate of gas and plasma, different parts of the Sun spin at different rates.
The weird thing about the Sun's rotation - as compared to Earth's rotation - is precisely that it is a differential rotation. That means that at the equator, the Sun rotates faster than near the poles. There is some recent evidence that the inner and outer cores of Earth do indeed spin at different rates and at different rates compared with the rest of the planet.
The rotation of the Earth produces days and nights, because different areas are illuminated at different times. The orbit of the Earth creates years because the period of rotation dictates how long it takes for all the seasons to pass by. The rotation rate of the Sun does not affect either the days or the years of Earth.
The apparent rising and setting of the sun as seen from the earth is caused by the rotation of the earth on its axis. As the earth spins, different parts of the planet are exposed to sunlight at different times, creating the illusion of the sun moving across the sky each day.
The spinning of Earth around its axis is called rotation
because of the sun
It has to do with the rotation of the earth and how far away it is from the sun during the different seasons.
Rotation. Rotation is the process by which the Earth spins on its axis, causing day and night as different parts of the planet are exposed to the Sun.
The rotation of the Earth on its axis causes day and night. As the Earth spins, different parts of the planet are either facing towards the Sun (day) or away from the Sun (night), creating a cycle of light and darkness.
Around the equator the Sun rotates once every 24.47 days. However this number changes with latitude, because the Sun experiences what astronomers call differential rotation. This is because the Sun is not solid like the Earth but gaseous. At the poles the rotation period is longer, about 33.5 days.