Mrs. F. J. BeukesHoërskool Generaal Hertzog

SUN

Planets

Asteroids

Satellites

Comets

Closest star to EARTH Earth’s main source of ENERGY Consist of 70% H, 28% He, 2% Other

materials (metals) Diameter: 1 390 000 km Surface Temp: 5 800 Kelvin Sun Spots – Cool spots on the sun

Closest to SUN Very HEAVY planet Consist mainly of IRON Very thin atmosphere NO moons Next densest planet after EARTH CRATERS– caused by collisions with asteroids and comets

Atmosphere CO2 – no O3

DRY planet NO moons HOTTEST planet in solar system VOLCANOS on surface

Known as the EVENING STAR

Only planet where LIFE exists

Why life? Oxygen Temperature Weather Water Sunlight Atmosphere

30% Land, 70% Oceans

ONE moon

24 hours orbit around own axis

365,25 days orbit around sun

Ice cold DESERT DUST STORMS produce YELLOW dust clouds Known as the “RED PLANET” Temperature range: -87°C to 17°C

TWO moons – Deimos and Phobos

PHOBOS

deimos

63 Moons LARGEST planet Known as the GAS GIANT Very STORMY planet “EYE OF JUPUTER” red dot – SWIRLING STORM Temperature range: -125°C to 17°C

EYE OF JUPITER

The SECOND LARGEST planet Made up of H and He LIGHTEST planet Great number of moons Famous for GAS RINGS around planet GAS GIANT

Spins SIDEWAYS Temperature -221°C 27 Moons Famous for GAS RINGS around planet GAS GIANT

Known as the “ICY PLANET”

13 Moons SIX RINGS around planet Temperature -218°C Famous for GAS RINGS around planet Smallest GAS GIANT

Known as the “WINDY PLANET”

FURTHEST from sun DWARF PLANET: Small Doesn’t clear all debris from orbital

Smaller than our MOON

1. Venus2. Jupiter3. Earth4. Jupiter5. Uranus, Saturn &

Neptune6. Mercury & Venus7. Saturn8. Neptune

1. Sun, 8 Planets, Asteroids, Satellites and Comets.2. Neptune, Uranus, Saturn, Jupiter, Mars, Earth, Venus,

Mercury.3.1 Pluto3.2 Venus3.3 Mars3.4 Saturn3.5 Uranus3.6 Saturn3.7 Jupiter3.8 Mars3.9 Earth3.10 Jupiter

HUBBLE TELESCOPE: Take photos Man has never been on

another planet.

Satellite type Function Example

Remote controlled Take pictures of the Earth. Hubble SpaceTelescope

Weather satellites Take photos to predict weather patterns.

Meteosat

Navigation satellite Have signals to help people determining their position.

Navstar

Communication satellites

Reflects signals from telephones, tv, internet etc.

Anik E

Space tourism-satellites

Enable people to travel through space.

N/A

Military satellites Used for spying and navigating weapons.

EARTH

24 hours

365,25 days

1 moon

Oxygen, temperature range, weather, water, sunlight, atmosphere

3rd planet from the sun

115 million km

INTERESTING FACTS•Approx. 7 billion people on Earth.•Surface consists of 70% ocean and 30% land.

•Only planet where life exists.•Only one moon.•Not a perfect sphere.•Spinning at 1 000 miles per hour.•About 4.54 billion year old.•Coldest place – Antarctica•Hottest place – El Azizia, Libia•May once have had two moons.•Deepest spot – Mariana Trench 8,382 feet.

1. Pluto is now considered a dwarf planet because it does not dominate its neighbourhood. Its large “moon” is about half the size of Pluto, while all the other planets are far larger than their moons. Another concern is the fact that planets clear a path along their orbits, Pluto does not clear all the debris from its orbital.

2. 1957 – Sputnik 1 launched by Soviet Union (Russia).1957 – Sputnik 2 transport the dog Laika into space.1961 –Yuri Garin (USSR) first man in space.1962 – John Glen orbited the earth three times in a space capsule.1969 – Neil Armstrong walked on the moon.1971 – Salyut 1 first space station.1981 – First space shuttle, Columbia USA, was launched.1990 – Hubble space telescope put into position by space shuttle Discover.2002 – Mark Shuttleworth was first South African in space.

3.1 Moons3.2 Satellites3.3 Orbitals3.4 Gravitational force