The planet on which we live is named as Earth, this is pointed at the third position from the sun. Life exists only on this planet while all of the other planets in the solar system deny any circumstances for the existence of life. Alike to all other planets in the solar system, the earth does revolve around the sun which is at the center of the overall system. There is also the rotatory motion in which the earth tends to move around its own axis. Both of the different movements of the earth correlate to the appearance of day and night as well as the formation of the alternative climates. All the effects of the earthy movements are explained below so that you can get the good view of the planetary motions.
What happens when the Earth revolves around the Sun?
- The Earth revolves around the sun in fixed orbit or the path. The shape of this path is an elliptical circle where one side of the path is near to the sun while other one is far away as compared. This difference in the distance for the earth around the sun helps to form the different climates.
- It takes about 365 days for the earth to complete its one single journey around the sun over the elliptical path. Think about how much time the farthest planet from the sun would take to complete the one revolution? The circumference of the path around the sun is the factor here, this means if more will be the distance of the path then more would be the time taken by the planet for the completion of the journey. Although the speed of the moving planet is also to be considered, for easier calculation we just tend to neglect the speed part.
- Can you guess the speed of the earth revolving around the sun? Our earth moves around the sun at a blazing speed of approximately 30 kilometers per second. This is really tremendous speed but the question here is why we don’t feel the affect for such high speed. Gravitation force on the earth helps to keep us in equilibrium which therefore reduces the outer effect of the earth’s revolving speed to zero. Some dense science knowledge would be required to convey to you so as to make you understand this fact.
- The average distance of the earth from the sun is 150 million kilometers. So you could imagine the temperature of the sun and also the size for the sun that it is still visible to us as a large circle. Mercury, the nearest planet to the sun, how hot it would be as this is really close to the sun! Earth is still the third planet from the eight known planets of the solar system.
What happens when the Earth rotates around its own axis?
- Earth keeps on rotating around its own axis for always. The axis of the earth passes through the two poles, i.e. southern pole and the northern pole of the earth. Slanted to an angle of sixty-six and a half degrees the axis of the earth causes the variation in climates around both different poles.
- Days and nights are the results of the rotation of the earth around its own axis. During rotation of the earth, the part of the earth facing the sun has the day at that instant while the opposite part of the sun have night.
- Now there is an amazing fact related to the rotation of the earth. The speed at which the earth rotates is around 1600 km/h. This is the maximum speed that is noted at the equator of the earth while at the poles the rotation speed for the earth is the least. At the very close point to the axis on the poles, the speed of the rotation is almost zero.
Have you read the above information, this means that you now know why and how the day/night and the climates are created on the planet Earth. There is a wide array of information that is hidden in the universe, astronomers are always active to judge through the actions and the happenings of the universe.