Earth and Universe definitions…

Scientists invented Earth and Universe definitions…

 Earth and Universe definitions

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Earth and Universe definitions

1. Celestial bodies :-

    All the things which we see in the sky shining during night, are
called celestial bodies. 
Earth and Universe

2. Stars:-

     All the celestial bodies which have their own heat and light, are called stars
sun is a star. 

3. Planet :- 

    The celestial bodies which do not have their own heat and light, and they
revolve around the star, are called planets. Earth is a planet except Earth there
are seven other planets mercury, Venus, Mars, Jupiter, Saturn, Uranus & Neptune 

4. Satelite :-

     All the celestial bodies which do not have their own heat and light, and
they revolve around the planets, are called satellite. moon is the natural satellite
of the earth. except Mercury and Venus all the planets have their own satellite in
different numbers. 
1. Celestial bodies :-
Earth and Universe

 

5. Asteroids :-

     Between mars and Jupiter there are number of Pieces which are made
of gases scientist believe that these pieces are parts of a planet. which broken
into pieces by explosion. so these pieces revolve around the sun and they are
called asteroids. and the area between mass and Jupiter is called Asteroid belt. 

6. Meteoroids :-

     In the universe there are some rocks which move around the sun
these rocks are called meteoroids. when these meteoroids fall on the earth, they
are burnt due to the atmosphere of the earth. so these materials are found on
different places in the universe. 

7. Constellation :-

     Sometimes in the night on the sky we see stars very close to each
other they form different patterns and shape. they are in the group in 7 or 8
number. so they are called constellation. there are different examples of
constellation like ursa major Sapta Rishi Taramandal the big beard . 

8. Galaxy :-

     In the universe are millions and billions of planets stars and satellite
these together form a galaxy in a Galaxy. there are millions of solar systems in
galaxy. these Galaxies are in millions of numbers the Galaxy in which our earth
exist, is called milky way there are several solar system in this Milky Way galaxy. 

9. Orbit :-

     In solar system all the planets move around the sun in a path, that path is
called Orbit it is not circular it is a longted. the planet, which is near to the sun
has small orbit. and the planet which is very far from the sun has a long Orbit. for
example Mercury has a small orbit and the Neptune has a long Orbit mercuryc
omplete its 1 year in earths 88 days and Neptune complete its one year in 146
year . 

10. Solar system :-Earth and Universe 

     All the planets and their satellite and son together make a solar
system sun is at the centre and all the planets move around it it is called solar
system there are 8 planets around the sun 

11. Full moon {purnima} and new moon{amavasya} :-Earth and Universe 

     Moon is that natural satellite of
earth It revolve around the earth in 27 days we can only see half portion of the
Moon because it does not rotate on its Axis. when it comes in front of us, we can
only see it’s half part. when it moves from in front of us, the visible part of the
moon is reduced but we feel that the size of the moon is decreasing. similarly
when it comes in front of us slowly we feel that the size of the moon is increasing
but the size of the Moon never reduce and increase the portion of the Moon
comes and goes in front of us very slowly so we can see only visible portion in
small and large amount so when come the complete half portion of the moon in
front of us, it is called full moon or Poornima similarly when the half portion of
the Moon goes in front of us opposite we cannot see it so that night is called New
Moon amavasya. Earth and Universe 

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