Earth's Revolution Around The Sun Causes

Name and surname: Lerato Mothapo

Student number:28999940

NSSP 211

Assignment 2

1. Describe the phenomena, which the Earth`s revolution around the sun causes.

-In a period of twenty four hours planet Earth completes its single rotation. By rotation we mean that a certain planet twist or twirl once. The direction in which the rotation of the earth is in an anticlockwise direction, so that is the reason why the sun is seen as rising in the east while it sets in the west. The circulation of the Earth infront of the sun causes days because the sun is not moving around the Earth. The axis of the Earth is in alignment with a Polaris star which is directly above the Earth axis. The star does not seem to shift, as we view it above the axis of the Earth

When the insolation vary it results in a variation in the seasons as well as the temperature that persist on the planet. The length of our daylight will determine how much insolation does the Earth receive along with the angle of the rays of sun have a huge impact on the intensity of the insolation acquired as the shape of the surface of the Earth is spherical. The resulting factor is that only one line of latitude will receive the maximum insolation than other latitudes that will receive less insolation because of the oblique angles they posses. As our Earth rotates on its axis, it has a constant tilt of 23.5 degrees when the revolution occurs. This causes the sun angle to vary in different places thus causing the different seasons along with during in which the day and night take. Overhead sun is when the sun is exactly above the Earth, you will find that the surface and midday will result in a ninety degrees angle like the latitude that is directly facing the sun. we have four equinox that occur during the revolving of the planet. Spring equinox happens on the 21st or 22nd of March where the overhead sun is directly over the equator, so it receive more insolation than other angles. The southern hemisphere will have autumn equinox while the northern hemisphere will have the spring equinox. The sun rays angle will decrease the further we go to the different poles. Both the hemisphere will receive equal daylight along with the night hours, so is the amount of the insolation. After that the northern hemisphere will start to experience longer days compared to nights whereas its the opposite in the southern hemisphere where it is autumn and the nights are longer in comparison to the days. Summer solstice occurs on the 21st or 22nd of the month of June where now the overhead sun is directly over the tropic of cancer and the amount