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Uranus
It is third largest in the solar system and the seventh planet
from the sun. Uranus is the coldest planet where surface
temperature may drop to –22 Celsius. It is pale blue in colour
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and was the first planet that was discovered using a telescope.
Uranus
Neptune
It is the fourth largest and the farthest planet from sun. It has
14 moons revolving around it. Neptune is a very cold planet
and is not visible to the naked eye. It has the fastest blowing
winds and hurricanes in the solar system.
Neptune
Dwarf Planet
Dwarf planets are those planets which do not fall in the category of planets but
revolve around the sun. Pluto which was earlier classified as the ninth planet
is now known as a dwarf planet. There are many dwarf planets in the solar
system but only five of them have been discovered and named. These are Ceres,
Makemake, Eris, Haumea and Pluto.
Satellites
A satellite is an object which revolves around the planet in a fixed path called
its orbit. It is also called the moon of the planet. Every planet, except Mercury
and Venus, has a moon or moons. There are two types of satellites-natural and
artificial.
Natural Satellite
Factual Study
Moon is the natural satellite of earth. It takes The first person to set foot on
27 days to complete one revolution around the the moon was Neil Armstrong.
earth. Moon does not have an atmosphere and He travelled in a spacecraft
light but it appears bright as it reflects the called Apollo 11 and landed on
light of the sun. Like the planets, moons do not the moon on 21 July, 1969.
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have their own light. Its surface is covered with
large-sized holes called craters. Life is not possible on the moon as it has no air.
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