A planet is a celestial body that revolves around a central star and does not shine by its own light. The only planetary system that is known to man is our solar system. It is made up of nine planets, which range in size and characteristics. The nine major planets in our solar system are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. There are also many other minor planets which are also in our solar system, but they are unimportant compared to the nine major planets. In this paper I will discuss the planets and how they are each unique.
Mercury, which is the planet that is closest to the sun, is the first planet I will discuss. Mercury is the smallest of the inner planets. It is speculated that the heat from the sun made it impossible for the gases present to become part of the planetary formation. The surface of Mercury is extremely hot. It is approximately 470 degrees Celsius on the surface and is thought to be even hotter at the two " hot spots." These " hot spots " are on opposite ends of the equator. It is the heat of the surface that makes it impossible for Mercury to have any type of atmosphere.
Mercury orbits the sun once every 88 days and has a true rotation period of 58.6 days. Since it is the closest planet to the sun it orbits faster than any other planet. It is said that Mercury rotates Three times for every two trips around the sun. It is speculated that it was the solidification of Mercury's metallic core that caused this global shrinkage. Mercury is also enriched in metal or depleted of rock. It is also believed that some of the inner core of Mercury is still in a fluid state. Scientists also believe that Mercury's surface is made partially of silicate rock. The best way to describe Mercury is in fact small, heavily cratered and airless.
Venus is the second closest planet to the sun and is said to most closely resemble Earth in size, density, and distance from the sun.
Planet Earth by P. ... It has to be spread out, the skin of this planet. ... It has to be made bright, the skin of this planet till it shines in the sun like gold leaf. ... Page's poem "Planet Earth" for Dialogue Poetry. ... Page's poem 'Planet Earth' be read throughout the world as a message of peace. ...
Planets and Solar System The Planets and the Solar System Planets 2 " A planet is a celestial body that revolves around a central star and does not shine by its own light " (Grolier, 1992). ... Mercury which is the planet that is closest to the sun is the first planet I will discuss. ... Jupiter is the fifth planet and is the most massive of all Planets 6 the planets in this solar system... The next planet is Uranus. ... Planets 8...
Inner Planets Mercury It is the planet closest to the sun. ... It is the second smallest planet. ... This planet has no moon. ... Venus is Earth's sister planet. ... It is the only known planet to contain life, even though other planets have atmospheres and water. ...
Murray believes he has a good reason to believe that there is a tenth planet. ... One could be planet X. ... Planet X is too faint to find even with the UK Schmidt Telescope. ... He then thought he hadn't found the right planet. ... Whitmire and Matese have no plans for a targeted search for Planet X. ...
Extrasolar Planets The universe is composed of many galaxies, planets, an abundant amount of stars, and matter. ... An extrasolar planet is a planet around other stars, and these planets are Mercury, Venus, Earth and Mars. One can see these planets through powerful telescopes. ... An observed Doppler-shift could be produced either by a low mass planet or by a bigger planet. ... There are many elliptical orbits than circular orbits of planets in the solar system, and also most of these planets are bigger than Jupiter. ...
The study of space weather and weather on other planets provides scientists with information that provides a greater knowledge of how our planet works. ... These factors cause the planet's weather system to be erratic. ... Mars, also known as the "Red Planet", is very cold and dry. ... Seasons Seasons on any planet are created by the combination of 2 factors: axial tilt and the planet's distance from the Sun (Caplinger). ... This can cause the temperature to drop about 50*F and affect the planet's heat balance, seasons, and occurrence of water vapor clouds ("Exploring the Plane...
Planet Comparison Report Uranus: Uranus was discovered in 1781 by Sir William Herschel. ... Uranus is one of the Jovian planets and like the others it has a short rotation period. ... It is the seventh planet from the sun at a distance of 1.78 billion miles. ... The axial tilt of this planet is one of the most unusual things about it. ... Neptune is the 8th planet from the sun at a distance of about 2.8 billion miles. ...
