SST PPT by Ankur Subject Solar System

The Solar SySTem PLUTO (Dwarf Planet)

Mercury, Venus, Earth, and Mars are the inner planets.

They are also known as terrestrial planets.

NEPTUNE URANUS

SATURN MARS EARTH VENUS MERCURY

SUN

JUPITER

Jupiter, Saturn, Uranus, Neptune, and Pluto are the outer planets.

Jupiter, Saturn, Uranus, and Neptune are also known as gas giants or Jovian planets.

Pluto is a big ball of ice.

Between Mars and Jupiter there is a large number of rocks orbiting the sun.

Each rock is known as an ASTEROID. COMETS OR METEOROIDS

This ring of rocks is called the Asteroid Belt.

WhaT iS Solar SySTem …? a Solar SySTem conSiSTS one Sun Some STarS , 8 planeTS , moon , aSTeroidS , meTeoroidS , comicS .

Sun

•The Sun is a star at the center of our solar system.

•It is estimated to be 4.5 billion years old.

•It supports all life on Earth through photo­ synthesis and is the ultimate source of all food and fossil fuel.

•99.86% of all the mass of the solar system is found in the Sun. •The core of the Sun is 16 million °C. •The surface of the Sun is 7000° C

mercury (planeT) Mercury is one of four terrestrial planets in the Solar System, and is a rocky body like Earth. It is the smallest planet in the Solar System, with an equatorial radius of 2,439.7 kilometres (1,516.0 mi).

VenuS (planeT)

2nd planet out from the sun. It is covered by thick, rapidly spinning clouds. Due to its thick cloud layer reflecting sunlight, it is the brightest planet in the sky It contains an iron core and a molten rocky mantle. The crust is a solid, rocky material. It is a terrestrial planet.

Density: 5.24 gm/cm3

earTh (planeT)

3rd planet out from the sun.

The Earth looks blue and green from space with clouds moving through the atmosphere. The surface of the Earth is 70% water and 30% land.

It is a terrestrial planet.

Density: 5.52 gm/cm3 Size: 40,000km (2,48,”000miles) around at the equator.

The moon

• The Moon is the Earth’s only natural satellite.

• The Moon contains no water and has no atmosphere • It is 3,84,401 km from the Earth. The surface of the Moon is covered with craters and flatlands.

marS (planeT)

4th planet out from the sun.

Mars appears red due to the iron oxide in its soil. It has polar ice caps that grow and recede with the seasons Density: 3.94 gm/cm3 Rotation: 24 hours, 33 minutes.

Temperature: ­87 °C to ­5 °C

JupiTer (planeT)

5th planet out from the sun.

It is sometimes called a “mini­solar system” because of its numerous moons and several rings.

It is a gas giant, meaning it is mostly made of gases.

Density: 1.76 gm/cm3 Rotation: 9 hours, 54 minutes Temperature: ­108 °C

SaTurn (planeT) Special feature: Saturn's ring system is the most extensive and complex in our solar system; it extends hundreds of thousands of kilometers from the planet. The rings are mostly water ice with particles ranging in size from a few micrometers to several tens of meters.

6th planet out from the sun.

Appearance: Saturn has a large system of rings, and the yellow and gold bands in its atmosphere are caused by super­fast winds combined with heat Rotation: 10 hours, 38 minutes Temperature: ­139 °C

uranuS (planeT)

7th planet out from the sun.

It has a blue­green color from the methane gas above the deeper clouds. Methane absorbs red light and reflects blue light. It does have a small system of rings.

Density: 1.30 gm/cm3 Rotation: 17 hours, 11 minutes Temperature: ­197 °C

Special feature: Uranus’ axis is tilted so that it seems to rotate on its side. This tilt gives it seasons that last over twenty years.

nepTune (planeT)

8th planet out from the sun.

Appearance: Neptune has a blue color because of the methane in its atmosphere. The methane reflects blue light while it absorbs red light. It has a small system of rings and periodically Great Dark Spots (hurricane­like storms) appear.

Density: 1.76 gm/cm3 Rotation: 16 hours, 4 minutes Temperature: ­200 °C

Special features: Neptune is actually the farthest planet from the Sun for a 20­year period out of every 248 Earth years due to Pluto’s unusual elliptical orbit.

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