TMA PRESENTATION

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Solar System : 

1 Solar System Presented by: Tahir Mahmood Ahmed 7th semester 19(A) 2007-che-399

Table of Content : 

2 Table of Content Introduction Inner Planets Outer Planets Asteroids Comets

Introduction : 

Introduction Our solar system is made up of: Sun Nine planets Their moons Asteroids Comets

SUN : 

4 SUN Solar system’s Largest object 98% of total solar system mass 70% hydrogen and 28% helium by mass Temperature of 6,000°C

Inner Planets : 

Inner Planets Similar size planets Have high densities Composed mostly of rock and metal Relatively slow to rotate Solid surfaces, no rings, and few moons

Slide 6: 

6 The inner four rocky planets at the center of the solar system are: Mercury Venus Earth Mars They are also called terrestial planets

Mercury : 

Mercury Planet nearest the sun Second smallest planet Covered with craters Has no moons or rings About size of Earth’s moon

Venus : 

Venus Sister planet to Earth Has no moons or rings Hot, thick atmosphere Brightest object in sky besides sun and moon (looks like bright star) Covered with craters, volcanoes, and mountains

Earth : 

Earth Third planet from sun Only planet known to have life and liquid water Atmosphere composed of composed of Nitrogen (78%), Oxygen (21%), and other gases (1%).

Mars : 

Mars Fourth planet from sun Appears as bright reddish color in the night sky Surface features volcanoes and huge dust storms Has 2 moons: Phobos and Deimos

Outer Planets : 

Outer Planets The outer planets composed of gas are : Jupiter Saturn Uranus Neptune These planets are called Gas giants

Jupiter : 

Jupiter Largest planet in solar system Brightest planet in sky 60+ moons, 5 visible from Earth Strong magnetic field Giant red spot

Saturn : 

Saturn 6th planet from sun Beautiful set of rings 31 moons Largest moon, Titan, Easily visible in the night sky

Uranus : 

Uranus 7th planet from sun Has a faint ring system 27 known moons Covered with clouds

Neptune : 

Neptune 8th planet from sun 7 known moons Triton largest moon

Outermost Planet : 

Outermost Planet Pluto, the outermost planet, is a small solid icy planet is smaller than the Earth's Moon. 9th planet from sun Never visited by spacecraft Orbits very slowly

Asteroids : 

Asteroids Small bodies Believed to be left over from the beginning of the solar system billions of years ago 100,000 asteroids lie in belt between Mars and Jupiter Largest asteroids have been given names

Comets : 

Comets Small icy bodies Travel past the Sun Give off gas and dust as they pass by