Notes, Exercises, Videos, Tests and Things to Remember on Galaxies and Constellation
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A galaxy is a huge assembly of stars, dust and gases, mutually held together by gravitational force . Millions of stars are present in the galaxy and the diameter of galaxy ranges from 1000 light years to one million light years. Our universe contains many galaxies and each galaxy has about billions of stars.
Some of the stars in the galaxy stay in a group called constellation such group of stars staying in certain patterns can be seen clearly in clear moonless night. As looking from the earth, the group of stars resemble with some animals, a group of people, some object, etc . On the basis of what they resemble to,they are given different names. About 88 constellation are known sufor and 12 of them are considered as zodiac. E.g. Ursa major, Scorpio, Orion, etc.
A group of stars forming the shape of particular object is called a constellation. So far 88 constellations are known. Leo, Ursa Major, Aries and Cancer are the four examples of constellation.
A big cluster of billions of stars that make up the universe is called a galaxy. There are three types of galaxy based on shape. They are elliptical, spiral and irregular galaxies. Our solar system belongs to the Milky Way which is a spiral galaxy.
Our solar system lies in the Milky Way galaxy that is spiral in shape.
Aries, Ceres, Charon, Leo, Moon, Titan, Ursa Major, Vesta. Aries- Constellation Ceres- Asteroid Charon- Satellite Leo- Constellation Moon- Satellite Titan- Satellite Ursa Major- Constellation Vesta- Asteroid
The two differences between galaxy and constellation are:
The group of stars with definite shape is called constellation.
In the sky, 88 constellation are seen.
12 constellations are called RASHIS.
The constellations with signs of zodiac are Aries, Taurus, Gemini, Cancer, Leo, Virgo, Capricorn, Libra, Sagittarius, Scorpio and Aquarius.
Cassiopeia is one of the constellation which can be seen on the northern hemisphere.
There are three stars at the belt of Orion.
Milky way is an example of ______.
Orion is an example of ______.
A huge assembly of stars, dust and gases, mutually held together by gravitational force is called ______.
The diameter of galaxy ranges from ______.
1000 light years to one million light years
100 light years to one million light years
1000 light years to 10000 light years
10 light years to one million light years