Intro to Astronmy Article Example | Topics and Well Written Essays - 1000 words - 1

Intro to Astronmy - Article ExampleIn cc AD, astronomers believed that planets moved round the earth in small circles called the epicycle. The Heliocentric model later explained that all planets including the insolate revolved around the sun. This model likewise explained that the retrograde motion of planets did so as the earth which moves swift than the former(a)wise planets overtook the other planets. Other planets are categorized as superior or inferior to the earth. meter that is able to elapse between the configurations that are identical and consecutive is experiencen as the synodic period.It was Copernicus who determined the sidereal period of other planets. He was also able to eff the distance between the planets and the sun. Kepler was able to precipitate up with a law that stated that every planet has an orbit that about the sun know as an ellipse. He also came up with the semi study axis. This happens to be the distance between the planets and the sun. The bill of the deviation from the perfect circle is known as the eccentricity. Kepler had three laws to explain the motion of planets and this was a major achievement in the field of astronomy. Galileo was able to discover a lot more with the aid of a telescope. He was able to know that the earth was not at the centre of the universe. With his telescope, he was able to know that the earth was not at the centre of the universe and that the earth was just like any other planet moving around the sun. Isaac Newton later came and introduced three laws. Inertia, force and action and reaction. He was also able to come up with the laws of the universal gravitation. The law of gravitation states that two bodies attract each other with a force directly proportional to each and every mass of the two bodies. This force is also inversely proportional to the square of the distance between them. Using the law of gravitation, Keplers three laws grass be summed up. Newtons was able to note that every