Solar system

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Solar system

Martha Camacho

June 2007

Geography I

Miss Darlene

Index

Title Page…………………………………………………………………..1

Index………………………………………………………………………...2

Abstract…………………………………………………………………….3

Body.,………………………………………………………………………..4

Layout and structure……………………………………………………..5

Formation…………………………………………………………………..5

Sun…………………………………………………………………………..5

Innerplanets……………………………………………………………….5

Asteroid Belt……………………………………………………………….7

Jupiter……………………………………………………………………….7

Saturn………………………………………………………………………..8

Uranus……………………………………………………………………….8

Neptune……………………………………………………………………...9

Pluto not a planet anymore………………………………………………9

Interesting facts……………………………………………………………10

Images……………………………………………………………………….11

Conclusion………………………………………………………………….13Bibliography………………………………………………………………...14

Abstract

In this project you will find a lot of information about the solar system. It will describe each of the eight planets in our solar system in detail. You will find information about other things like satellites, asteroids and galaxies that surround ours. You will also find interesting things that you probably didn’t know about the sun, like the solar winds and many similar things about theother planets that are as interesting as the sun. It will also tell what scientists based their decision of Pluto not being a planet anymore.

Body

It comprises the Sun and the retinue of celestial objects gravitationally bound to it: the eight planets, their 162 known moons. Consist of the Sun , four rocky bodies close to it called the inner planets, an inner belt of rocky asteroids,four outer planets and a second belt of small icy bodies : Kuiper belt. In order based on their distances from Sun, the planets are Mercury , Venus , Earth , Mars , Jupiter , Saturn , Uranus , and Neptune . Six of the eight planets have moons and every planet after the asteroid belt is encircled by planetary rings of dust and other particles. The planets are named after gods and goddesses fromGreco-Roman mythology (except for the Earth)

Astrological symbols of planets and sun:
• Sun: [pic]

Mercury: [pic]

Venus: [pic]

Earth: [pic]

Mars: [pic]

Jupiter: [pic]

Saturn: [pic]

Uranus: [pic]

Neptune: [pic]

Layout and structure:

The principal component of the Solar System is the Sun contains 99.86% of thesolar system’s mass.Saturn and Jupiter occupies more than 90% of the remaining mass. All planets and most other objects orbit with the Sun's rotation; in a counter-clockwise direction as viewed from a point above the Sun's North Pole.

Formation:

The hypothesis of its formation is the: nebular hypothesis, that was first proposed in 1755, by Immanuel Kant, and then formulated byPierre-Simon Laplace. It says that 4.6 billion years ago the solar system formed from the gravitational collapse of a gaseous cloud. This initial cloud was several light-years across and probably played host to the births of several stars.

Sun: is the Solar System's parent star. Its large mass gives it an interior density high enough to sustain nuclear fusion, releasing giant amounts of energy,most is radiated into space in the form of electromagnetic radiation including visible light. The hotter a star is, the brighter it is
Inner Planets: They are also called terrestrial planets because of their dense, rocky composition, they have few or no moons, and lack of ring systems. Three of them (Venus, Earth and Mars) have substantial atmospheres; all have craters and have tectonic surfacefeatures such as rift valleys and volcanoes.

They are :
Mercury: the closest planet to the Sun. Is very different from the other terrestrial planets; it has no moons, and its only known geological features besides impact craters are "wrinkle ridges" probably produced by a period of contraction . Its relatively large iron core and thin...
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