Answers

2014-07-03T20:07:40+05:30
PlanetĀ 
they are non-luminous and only reflect the light of their stars.
surface temperature depends on distance from the sun.
they do not twinkle the way stars do.
they are smaller than stars.
the earth is an example of planet.

Star
they are self -luminous -they emit their own light.
they are very hot.
they twinkle.
they are very large.
the sun is an example of a star.

hope it helps

1 5 1
2014-07-03T20:18:03+05:30
STARĀ 

A star has it's own light
stars twinkle at night
The relative positions of the stars do not undergo any noticeable change .
since the stars are very far away , the telescope can only make them look brighter but not larger .
A star has very high temperature .
There are billions of stars in the celestial sphere .

planet

A planet has no light of it's own.It shines by reflecting the light I of sun .
planets do not twinkle at all.
Since planets are very much closer to the earth than the stars are ,their motion around the sun is noticeable as a daily shifting of relative position in the sky .
Most planets on the other hand are near enough to the ears to be magnified by the telescope .
Planets have low temperatures.
There are only nine planets in the solar system .

2 4 2