COOL FACTS OF THE WORLD
- THE NIGHT SKY
- THE SUN AND MOON
- THE PLANETS
- PLANET EARTH
- WORLD TIME ZONE
- THE PHYSICAL WORLD
- WATER
- THE EARTH'S CRUST
- WORLD CLIMATE ZONES
THE NIGHT SKY
Stars, of which or sun is an example, are scattered throughout the Universe. Ancient people observed their patters in the night sky as different groups, or constellations. For thousands of years, navigators have used the stars as guides.
THE CONSTELLATIONS OF NORTHERN HEMISPHERE
THE CONSTELLATIONS OF
SOUTHERN HEMISPHERE
THE CONSTELLATION OF NORTHERN HEMISPHERE :
- Vega will be the pole star in AD 14,000.
Betelgeuse, a huge star in the known universe, is 400 times larger than the sun.
- Stars appear to revolve around the centre star,Polaris.
- The pole star lies along the axis of Earth's rotation.
- Clusters of stars from groups known as constellations.
THE CONSTELLATION OF THE SOUTHERN HEMISPHERE : - Sirius is the brightest star in the night sky.
- Stars near the edge become visible month by month through the year.
- Proxima Centauri & Alpha Centuari A & B form our nearest star cluster.
THE MILKY WAY
The sun is one of the 200 billion stars in our galaxy, the Milky Way.
Scientists believe we belong to a spiral style galaxy with a diameter of 100,000
light years. Because of our solar system's position in the Orion arm of the spiral,
we view the Milky Way as a luminous band of bright stars, without the spiral details.
THE MILKYWAY
