Solar System Formation

Accordingly, the solar system has any orbit; the real question is, how did gravity impact the motion of the planets? They couldn’t have just began to rotate by themselves. In the first place, the planets orbit around a source, which is the sun having lots of gravitational pull to allow the eight planets to orbit around. Gravity, is what causes the planets to only go a certain speed and time to go around the sun. Without gravity we wouldn’t stay revolving around. (Gravity and Orbit Simulation,1/20/2017) Likewise, the revolution of the planets going around the sun isn’t a circle, it’s more of an oval shape. Likewise, the velocity of a planet's revolution also ties into this because, the planet’s have an elliptical orbit meaning they change in

the planets fall around the Sun. Each of these objects balances the Sun 's force of gravity

Planets revolve, or orbit, the Sun because of gravity keeping them in their orbit. The Sun's gravity has a pull on the planets which prevents them from falling into each other. Newton discovered the law of gravity which states that a particle attracts other particles by using a force that is directly proportional to their masses and inversely proportional of the distance

By the 16th century, astronomers began to note irregularities in the accepted model of the solar system. In the early 1500s, Nicolaus Copernicus noted that the planets had slight discrepancies between their observed and presumed positions. Copernicus thought that the Sun was

The solar system was created 4.6 billion years ago by a gravitational collapse. A solar system is a star that has planets, moons, asteroids, comets, and meteoroids travel around it. The solar system contains eight known planets which are Mercury, Venus, Earth, Mars, Jupiter, Saturn, and Neptune. There is around several hundred dwarf plants but only five are currently recognized. The solar system has about 181 moons which orbit around the planets in the solar system. There is also about 150 million asteroids and 3,406 comets also in the solar system.

The life cycle of the Sun starts like all stars with a cloud of dust and gas made up of mostly hydrogen. If the cloud cools, it will shrink because of the gravitational pull between the particles

When the sun was a young star, the leftover material formed what would be planetary disks. These are accounted by all the planets in the solar system. Venus was made into the second planet from the sun. Over the next billion years the planet formed. There

Brouwer, D. and Clemence, G. M.: 1961, Methods of Celestial Mechanics, Academic Press, NY and London.

Many believe that while Early Earth was undergoing accretion, it had a massive collision with a large body- as huge as the size of Mars (see Fig. 2.). This collision produced a shower of debris around the Earth and thrusted it into space (Grotzinger and Jordan, 2010). “According to this theory, the Earth reformed as a boy with an outer molten layer hundreds of kilometres thick- a magma ocean.” (Grotzinger and Jordan, 2010). Marshak (2007) deduced that the Moon was formed from the accretion of the debris floating around the Earth. He also suggested that the Moon’s composition resembles that of the mantle because of the way the Mars-sized body collided with the Earth. From this, we can assume that when the collision happened- it did not disturb the Earth’s iron-nickel core that was already formed. The formation of the Moon must have happened 4.51 billion years ago- between the early stages of the accretion of the Earth which was 4.56 billion years ago,) and “the formation of the oldest Moon rocks brought back by the Apollo astronauts (4.47 billion years ago,)” (Grotzinger and Jordan, 2010).

Before the discovery of Uranus there was thought to only be seven heavenly bodies, the Sun, the moon, and five planets. It was common knowledge at the time that they were the only other objects in the Solar System and there would be no others. It changed in 1781 when William Herschel discovered a new object, which later became known as Uranus. (Teerikorni, 111) This all began in 1773 when Herschel started grinding his own lenses and even mounting a mirror with a five and a half foot focal length. He continued in 1776 with larger telescopes. “In July he added a 20ft, and telescopes of 7, 10 and 20 feet becames his common working instruments for some years to come.” (Bennet, 75-76) All of this tinkering eventually led to the discovery of a new

There are many anomalies, events, planets, and stars, and many more parts of our universe. Three anomalies, events, and astronomical objects are black holes, supernovas, and stars. Random fact, these three are either stars or are the event caused by a star.

Energy from a nearby supernova may have started the collapse of the gas cloud that formed our solar system. Evidence for this statement may include that supernovas explode and disturb surrounding areas or things. Due to the supernova exploding, the gas cloud occurred. As the gas cloud formed, the whole thing was pulled by gravity and attracted gas and dust together, creating a solar nebula. During this, the nebula spun so much that it began to fall apart.

Throughout the class we have discussed three hypotheses on how the Solar System was created, these three are the nebular, protoplanet, and planetesimal hypothesis. The first one is the nebular hypothesis, created by Pierre-Simon de Laplace in 1796. About a hundred years later the protoplanet hypothesis was created by Carl Von Weizsacker and Gerard Kuiper, then soon after the planetesimal hypothesis was proposed by Forest Moulton and Thomas Chamberlin in 1905. All of these hypotheses have similarities and differences between each other, as well as each have a problem with their hypothesis, annexing them from being a theory.

Nicholas Copernicus was one of the first astronomers to develop the concept of a heliocentric version of our solar system where the sun is in the center instead of Earth.

Scientists believe the solar system began about 5 billion years ago, perhaps when a nearby star exploded and caused a large cloud of dust and gas to collapse in on itself. The hot, central part of the cloud became the sun, while some smaller pieces formed around it and became the planets. Other fragments became asteroids and comets,