Astronomy - Significant Facts About Major Planets

1. By: Alex Bajamundi

2. Difference between Star and Planet
PLANETS STARS
Planets Star Differs from a star in its
make-up in the way it glows.
Revolvers around the sun
Gives of no light of its own; instead, it
reflects light from sun
Do not twinkle
Can’t revolves around the sun
Consist non-exploding elements Is a mass of
exploding gases.
Appear to do so because of the moving later
of air that scatter the light.

4. Can you tell me the
name of all the major
planets in the solar
system?

7. MERCURY
--Named from the Messenger of the
Roman gods
--Can be observed as the
morning and evening star.
--Temperature: 425 degree Celsius on day side 175
degree Celsius on night side or the side away from
the sun.

8. MERCURY
--Planet nearest to the sun
--Diameter of 4,878 kilometers
--About one-sixteenth the size of the earth
--Magnetic field is about 1% as strong as that of
the earth
--Fastest of the 8 Planets
--revolves around the sun in 87.97 days.
--Rotation is 58 days, 15hours and 28 minutes.

10. Venus
--Named by
Roman Goddess
of love and beauty
because as seen
from the earth
-- it takes 225 days for
Venus to orbit the sun.
-- Diameter : 12,104
kilometers. Same size as
the earth and their
masses and surface
gravities are close.

11. Venus
--it rotates 243 days, longer than it takes for it to revolves around the sun.
-- its dense and cloudy atmosphere is an excellent reflector of light.
Venus like Uranus spins or retrograded unlike
spin of the rest which is counterclockwise.
--Clockwise --Counter Clockwise
Venus
Uranus
OTHER
PLANETS

13. EARTH -- the only planet known to support and have
intelligent life.
-- it has an atmosphere that makes it possible for
life to flourish, the others are blanketed by boiling,
poisonous gases.
--Earth day is 24 hours which is the time it takes
our planet to complete its rotation on its axis.
--Our planet has one Satellite Called Moon or Luna
--The earth is farther away from the sun than Mercury and
Venus, it makes a complete revolution of about 365 days..

15. MARS -- Name comes from the “Roman god of War”
-- Mars is Reddish color , that’s why it called the Red Planet.
--The Babylonians called Mars as the “ Star of
Death.
-- It takes 687 Earth days for Mars to revolve
around the sun which means that seasons on
Mars are almost twice as long on Earth has a
thin Atmosphere.
--Diameter : 6,794 kilometers smaller that earth
core. Its spin once in 24 hours, 37 minutes.

16. MARS
--It has no ozone in
its atmosphere to
react with deadly
radiation from the
sun.
--Temperature :
The Equatorial
Region on the Red
Planet approaches
30 degrees Celsius
on a hot day. But
when the sun sets,
the temperature
drops rapidly to - 75
degrees Celsius.
-- Many like to
think that there's a
life in Mars . This
idea became a
popular when an
Italian
Astronomers
sighted a network
of what seemed to
be straight lines on
the surface of

17. Two satellites of mars
PHOB
O
DEIMOS
--GREAK WORD for
TERROR
--GREEK WORD for
FEAR

19. JUPITER
Is the Giant member of the planetary system.
It was named by a Roman God. The god of Jupiter
was also known as Jove, thus , Jovian is the
adjective form used by astronomers to describe the
planet.
Jupiter has the shortest day of all the planets.
It turns on its axis once every 9 hours and 55
minutes. The rapid rotation flattens the planet
slightly, giving it an oblate shape.

20. JUPITER Has 318 times more mass than the Earth.
Has more material than all other planets and their
satellites put together.
Diameter is more than 11 times greater than the earth’s .
Yet massive planets rotates quickly.
No other planet spins so fast. -- is a strange place. It has
so much mass that its gravity is 2.6 times greater than
the earth’s.

21. JOVIAN
ATMOSPHEREmade up mostly of hydrogen and helium.
-- it contains also some methane and ammonia.
-- No free oxygen has been found. Its atmosphere is very cloudy,
thus it is impossible to see through it.
-- Jupiter has no real surface at all. At depth of rough 165km, the
pressure of the Jovian atmosphere is so high that gases in the
atmosphere liquefy, resulting in a hydrogen-helium ocean.
-- Deeper into the Jovian atmosphere, the pressure is even
greater. At 245km, some of the hydrogen-helium mixture turns
slushy. Finally, it becomes solid.
Jupiter is a huge ball of hydrogen mixed with helium. Some
parts of the mixture are Solid; others Liquid; and still others, gas.

25. SATURN
Like all of the planets, Saturn is named after
a character in Roman mythology. Saturn is
named after the god Saturnus, the god of
agriculture and harvest.
Second Largest
planet in
SolarSystem

26. SATURN
At first glance, it may look like a smaller
model of Jupiter.
Diameter is 9½times that of the earth.
It has 95 times more mass than the earth
and its period of rotation is 10hours and
39minutes.
A day in Saturn is only an hour longer than a
day in Jupiter.

30. URANUS
Uranus was officially discovered by Sir William Herschel in 1781.
 It is too dim to have been seen by the
ancients. At first Herschel thought it was
a comet, but several years later it was
confirmed as a planet.
 Herscal tried to have his discovery named
“Georgian Sidus” after King George III.
 The name Uranus was suggested by
astronomer Johann Bode.
 The name comes from the ancient Greek
deity Ouranos.

31. Uranus
--Uranus turns on its axis once every 17 hours, 14 minutes..
-- Uranus makes one trip around the Sun every 84 Earth years..
--Uranus is often referred to as an “ice giant” planet.
--Uranus hits the coldest temperatures of any planet.
--Uranus has two sets of very thin dark colored rings.
Uranus spins or retrograded unlike spin of the
rest which is counterclockwise.
--Clockwise --Counter Clockwise
Venus
Uranus
OTHER
PLANETS

34. NepTune
Neptune and Uranus are like twins -- besides being similar in size,
they both appear as pale green due to methane in their
atmospheres.
 Neptune is the eighth planet from the Sun
making it the most distant in the solar
system. This gas giant planet may have
formed much closer to the Sun in early
solar system history before migrating to
its present position.

35. Neptune
Neptune was not known to the
ancients.
It is not visible to the naked
eye and was first observed
in 1846. Its position was
determined using
mathematical predictions. It
was named after the Roman
god of the sea.

36. Neptune
 Neptune spins on its axis very rapidly.
 Neptune is the smallest of the ice giants.
 The atmosphere of Neptune is made of
hydrogen and helium, with some
methane.
 Neptune has a very active climate. Large storms whirl through its upper
atmosphere, and high-speed winds track
around the planet at up 600 meters per
second. One of the largest storms ever seen
was recorded in 1989. It was called the
Great Dark Spot. It lasted about five years.

37. Neptune has 14 moons.
The most interesting moon is Triton, a frozen world that is spewing
nitrogen ice and dust particles out from below its surface. It was likely captured
by the gravitational pull of Neptune. It is probably the coldest world in the solar
system.

39. Thank you!