Our Solar System
By:Muskaan Aggarwal
Contents
• Introduction• Terms• Sun• Mercury• Venus• Earth• Mars • Jupiter• Saturn• Uranus• Neptune• Facts
Introduction
The Sun and the celestial bodies which revolve around it form the solar system. It consists of large number of bodies such as planets, comers, asteroids and meteors. The gravitational attraction between the Sun and these objects keeps them revolving around it. Let us study more about its components.
Terms
• Star- A huge body made of hot luminous gas that is held together by its own gravity. Compared to other stars, our Sun is a star of average size and energy
• Planets- A large body that orbits a star. For example: Earth,
Mars , Venus etc.• Asteroid ( or minor planet)- A body smaller
than a planet and made of rock, metal, or other minerals. There is a large belt of asteroids between Mars and Jupiter.
• Moon ( or satellite)- A body that orbits a planet or asteroid. Most moons are much smaller than their planet or asteroid.
Terms
• Comet- An object composed of frozen gases and dust particles that was formed on the outskirts of the solar system and that orbits the Sun.
• Meteor- Also known as shooting star. A chunk of rock or metal that enters Earth’s atmosphere and burns up in a fiery show.
• Meteorite- A chunk of rock or metal that has fallen into the Earth from beyond its atmosphere.
• Meteorite- A chunk of rock moving through space.
Sun• The Sun is the solar system’s star
and its chief component. It is the main source of heat and light for all components of the solar system. It attracts all other bodies with its strong gravitational pull. It makes up for more than 99% of all mass in the solar system. It is an average star. Eight planets revolve around the Sun. They are: Mercury, Venus, Earth, Mars, Jupiter, Saturn and Neptune.
Mercury CharacteristicsDistance From Sun
57 million Km.
Equatorial Diameter
4878 km.
One year 88 daysMoons NoneTemperature Range
-183oC - 423oC
Conditions Dry, no atmosphere
Extra Points It is the smallest planet.
Venus
Distance from Sun
108,208,900 Km.
Equatorial Diameter
12,103 Km.
One year 243 days
Moons None
Temperature Range
Around 467oC
Conditions Hottest Planet, Thick Atmosphere
Extra Points It rotates clockwise
Earth
Distance from Sun
150 million Km.
Equatorial Diameter
6,790Km.
One Year 356 days 6 hours
Moons One
Temperature Range
-120.C – 25 .C
Conditions Good conditions for life.
Extra Points The only planet with life.
MarsDistance From Sun
230 million Km.
Equatorial Diameter
6794 Km.
One Year 686.971 Earth Days
Moons 2: Phobos and Deimos
Temperature Range
-87oC : 20oC
Conditions Thin atmosphere, mainly Co2
Extra Points Named after Ares, God of War
Jupiter
Distance From Sun
778 million Km.
Equatorial Diameter
142,948 Km.
One Year 11.86 Earth Years
Moons 64 known satellites
Temperature Range
-145oC- 21oC
Conditions It has no surface.
Extra Points It is the largest planet.
Saturn
Distance From Sun
1430 Million Km.
Equatorial Diameter
120,536 Km.
One Year 29 ½ Years
Moons 62
Temperature Range
-150oC - 11700oC
Conditions Hot core which radiates more heat than received
Extra Points Rings are mostly made of sand dust with traces of ice
UranusDistance From Sun
3075 Million Km.
Equatorial Diameter
51,118 Km.
One Year 84 Earth Years
Moons 27
Temperature
Minimum: 224oC
Conditions Very Strong winds
Extra Points Has axis tilt of 97.77oC
Neptune
Distance From Sun
4500 Million Km.
Equatorial Diameter
49,532 Km
One Year 165 years
Moons 13
Temperature Range
-218oC - 5000oC
Conditions Surface comprises of ice and rock
Extra Points Farthest planet from Sun
Facts
• The Solar System has 4 dwarf planets Ceres, Pluto, Eris and Makemake. • It is 4.6 billion years old.• There is water on Mars.( In the form of
Ice)• Neptune has the fastest winds of all
planets.• Neptune’s moon, Triton is colder than
Neptune.
Facts
• Jupiter’s mass is 318 times the Earth’s mass.• It is the fastest rotating
planet.• Half of Mercury has never
been seen• Venus has phases like the
moon.• Uranus experiences summer
for 42 years i.e. just ONE long day!!!!
Thank You For
Watching….
The End