09 October 2012

Earth - Our Home

Earth : our home

Earth is the third planet from the Sun and largest of the terrestrial planets. Suprisingly, while it is only the fifth largest planet in terms of size and mass. Regarding its name, Earth is the only planet not named after a mythological being. Instead, its name is derived from the Old English word "ertha," which means ground.
Number of Moons: 1
Rings: No
Time it takes light to reach Earth from the Sun:
8 minutes 17 seconds

Length of Day:
23 hours 56 minutes
Length of Year:
365.26 days




As the third brightest object in Earth's sky after the Sun and moon. It is often remarked that Venus and Earth are twin planets due to their similarity in size, density, mass, and volume. Though these planetary characteristics are relatively the same, Venus and Earth are still substantially different in many other ways (e.g., atmosphere, rotation, surface temperatures, and Venus' lacking a moon). 

Number of Moons: 0
Rings: No
Time it takes light to reach Venus from the Sun:
6 min

Length of Day:
243.02 Earth Days

Mercury - the closest planet to the sun

Mercury is the closest planet to the sun. As such, it circles the sun faster than all the other planets.

Number of Moons: 0
Rings: No
Time it takes light to reach Mercury from the Sun:
3 min 16 sec
Mass: 3.3010 x 1023 kg
Diameter: 4,878 km
Density: 5,400 kg/m3
Length of Day:
58.65 Earth Days
Length of Year:
87.97 Earth Days


The Solar System Song

It's a song about the Sun and the planets for children of all ages.
This song was written and performed by A.J. Jenkins. Video by KidsTV123

Let's sing the song ~~ 

Planets of Solar System

Solar System—sistem suria















Can you list the planet in the Solar System in a sequence ?

Understanding the solar system

Understanding the solar system 

Our solar neighborhood is an exciting place. The Solar System is full of planets, moons, asteroids, comets, minor planets, and many other exciting objects. Learn about Io, the explosive moon that orbits the planet Jupiter, or explore the gigantic canyons and deserts on Mars. 

What Is The Solar System?

The Solar System is made up of all the planets that orbit our Sun. In addition to planets, the Solar System also consists of moons, comets, asteroids, minor planets, and dust and gas.

Everything in the Solar System orbits or revolves around the Sun. The Sun contains around 98% of all the material in the Solar System. The larger an object is, the more gravity it has. Because the Sun is so large, its powerful gravity attracts all the other objects in the Solar System towards it. At the same time, these objects, which are moving very rapidly, try to fly away from the Sun, outward into the emptiness of outer space. The result of the planets trying to fly away, at the same time that the Sun is trying to pull them inward is that they become trapped half-way in between. Balanced between flying towards the Sun, and escaping into space, they spend eternity orbiting around their parent star.