|
|
|
||||||||
|
Mars-Saturn (only Mars is complete)
Uranus-Pluto (upcoming)
|
||||||||||||||||||||||
 |
||||||||||||||||||||||
|
Planets
|
||||||||||||||||||||||
|
|
||||||||||||||||||||||
|
The planets are listed in the order from the sun starting with the sun. For quick reference the order is Mercury, Venus, Earth, Mars, Jupiter, Sapturn, Uranus, Neptune, Pluto. Also due to constraints this section will be split up into three different pages with Sun-Earth, Mars-Saturn, and Uranus-Pluto in their own sections. Currently only the planets Sun-Mars are complete.
Sun
Period of Rotation:
Diameter at Equator: 865,500, 109 times that of Earth
Volume: 1,300,000 times that of Earth
Density: 1/4 of Earth
Structure:
Five Layers (From inside out)
Core-radius is 175,000 km thick
Radiative Zone-400,000 km thick
Convective Zone-120,000 km thick
Atmosphere-200,000 km thick
Corona-Extends millions of miles
In the core, the thermonuclear reactions which power the sun occur. The energy must be transported to the surface. In the radiative zone energy is constantly being absorbed and re-emitted by atoms as it makes it way to the surface. In the Convective Zone the energy is brought closer to the surface by the movement of solar material. The atmosphere is divided into two area, photosphere and chromosphere. Most of theight we see comes from the photoshpere and the chromosphere gives the sun its
orangish color. The Corona extends out millions of miles and eventually turns into solar winds.
Solar Wind
A stream of charged particles continously ejected from the sun. Mainly consisting of Hydrogen ions and electrons. Since Hydrogen has an atomic number of 1 a Hydrogen ion is a proton. Solar wind is responsible for the tear drop shape of the magnetoshpere of Earth, Saturn, Uranus, and Neptune.
Mercury
The closest planet to the sun. It is approximately 3030 miles away.
Density equal to Earth
One revolution around the sun in 88 days.
One rotation is 58.7 days.
It has a magnetic field about 1% of Earth. Which makes it the only other planet with the same composition and density of Earth to have a magnetic field. This means it has a liquid iron core which produces the magnetic field as it moves.
Extremely thin atmosphere consisting of potassium and sodium probably diffusing from the core.
Gravitational field is equal to 1/3 G’s
No moons.
Venus
Second Planet from the sun
Behind the Sun and Moon; third brightest object in the sky!
No moons!
Has a complete cloud cover. The atmosphere consists of 97% CO2 (Carbon Dioxide),while the other 3% is Nitrogen.
The large amounts of Carbon Dioxide caused a run away green house affect that keeps the surface at 864° F.
Sulfuric Acid makes up the clouds. On Earth Sulfuric acid is a thin haze in the stratosphere and is carried down by rain. On Venus the Sulfuric Acid evaporates and can not change to liquid in order for it to rain down due to the high temperatures.
1 Venusian day is equal to 243 Earth days.
Diameter= 7,520 miles
Earth
3rd planet from the sun. Approximately 92.897 million miles
Only known planet in the Solar System that supports life.
Circles the sun at a rate of 66,000 mph in 365 1/4 days
1 day equals 23 hours 56 minutes 4.1 seconds
Magnetic poles are not constant but vary considerably. Also not at the place of the geographic poles.
Magnetic poles have reversed at least 170 time in the last 100 million years
1 moon. Only other body humans have visited.
Moon
1/4 of Earth
Density is 3/5 of Earth
Gravitational Field=1/6 of Earth (1/6 g's)
No Atmosphere
Due to speed of orbit and rotation one side always faces Earth
Shows different phases because the side closest to the sun is always lit. For example when the moon is between the Earth and Sun we see no moon, when it is next to the Earth we see 1/2 of the moon, and when it the Earth is between the sun and moon we see a full moon.
Many theories about origin. Most accepted is a comet or astroied hit Earth knocking off a large section which became the moon.
Man first walked on the surface July 20, 1969 when Neil Armstrong to the first steps.
|
||||||||||||||||||||||
|
|
||||||||||||||||||||||
 |
||||||||||||||||||||||
 |
||||||||||||||||||||||
 |
||||||||||||||||||||||
 |
||||||||||||||||||||||
 |
||||||||||||||||||||||
| page created with Easy Designer |