Download IN THE CENTRE OF THE SUN IT ABOUT 15 MILLION DEGREES

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Transcript
In The Centre of the Sun it
about 15 million deGrees but
on the surface it is 6,000
deGrees.
The Suns rotation is
approximately 27 days.
How was the Sun Made ?
 Scientists believe an explosion , called the Big Bang
created the universe 13 million years ago. It created
new substances two gases called hydrogen and
helium.
 Stars most likely began as clouds together to form
thicker and thicker clumps. These formed young stars
which began to heat up.
Pictures
 Here are some pictures of the Sun!
The Sun is the centre
of the solar system.
It is almost spherical
and consists of hot
plasma with magnetic
fields.
The Sun or Sol, is the star at the centre of
our solar system and is responsible for
the Earth’s climate and weather. The Sun
is almost perfect sphere with a difference
of just 10km in diameter between poles
and the equator. The arrange radius of
the Sun 695,508 km (109. 2x that of the
Earth) of which 20-25% is the core.
The Sun is the star at the centre of the solar
system. It is almost spherical and consists of hot
plasma interwoven with magnetic fields.
It has a diameter of about 1,392,684 km, around
109 times that of the Earth.
 Mercury is the closest planet to the sun.
 Mercury is not very close to the sun since
it is 36 million miles, or 58 million
kilometres away from the Sun.
 Like other planets Mercury orbits round
the Sun it orbits round the Sun every 88
days.
Mercury
Mercury has a small
magnetic field strength of
1%.
Mercury is hot because it is
very close to the sun.
The planet Mercury spins
around really slowly. This
means parts of Mercury are
exposed to the Sun’s heat
for long periods of time.
• Venus in ultra-violet light
• There are strong (350 kph) winds at the cloud tops but winds at the
surface are very slow, no more than a few kilometres per hour.
• Venus probably once had large amounts of water like Earth but it all boiled
away. Venus is now quite dry. Earth would have suffered the same fate had
it been just a little closer to the Sun. We may learn a lot about Earth by
learning why the basically similar Venus turned out so differently.
•
• Most of Venus' surface consists of gently rolling plains with little relief.
There are also several broad depressions: Atalanta Planitia, Guinevere
Planitia, Lavinia Planitia. There two large highland areas: Ishtar Terra in the
northern hemisphere (about the size of Australia) and Aphrodite Terra
along the equator (about the size of South America). The interior of Ishtar
consists mainly of a high plateau, Lakshmi Plenum, which is surrounded by
the highest mountains on Venus including the enormous Maxwell Montes.
• Sif Mons (Magellan radar)
• Data from Magellan's imaging radar shows that much of the surface
of Venus is covered by lava flows. There are several large shield
volcanoes (similar to Hawaii or Olympus Mons).
• Recently announced findings indicate that Venus is still volcanically
active, but only in a few hot spots; for the most part it has been
geologically rather quiet for the past few hundred million years.
• There are no small craters on Venus. It seems that small meteoroids
burn up in Venus' dense atmosphere before reaching the surface.
Craters on Venus seem to come in bunches indicating that large
meteoroids that do reach the surface usually break up in the
atmosphere.
• The oldest terrains on Venus seem to be about 800 million years
old. Extensive volcanism at that time wiped out the earlier surface
including any large craters from early in Venus' history.
DID YOU KNOW?
Venus was the Roman goddess of love and beauty.
In Greek, her name was Aphrodite. The planet Venus has long been one of the most
misunderstood of all the inner planets. Like the Earth, Venus has an atmosphere.
However, Venus' atmosphere is far thicker than that of the Earth, making it difficult for
modern science to penetrate. Interestingly, scientists have recently been able to peek
through the thick clouds and get a few glimpses of the surface. Venus has more than
1600 volcanoes on it and Venus is the evil brother of Earth although identical in size.
PICTURES OF VENUS
Venus is very hot because it is so close to the Sun.
EARTH FACTS
•
The length of time it takes for Earth to orbit the sun is 365 and a quarter days.
•
Mass 5,972,190,000,000,000kg.
This shows you were
the planets are.
•
-a years on Earth isn't 365 days its actually 365 2564 days
People believed that if you went to far and over the
horizon you would drop off the edge and die because
they thought it was flat. Scientist use Earth to study all
the other planets. The picture up in the corner is the
inside of the Earth.
The Earth has one Moon and the name of that Moon is
Luna. The Earth has on it about 30%of land covering
it and 70% of ocean covering it. Since no human has
been to any other planet scientist have to use what
they know.



What was the picture on the first slide?
How many moons does Earth have?
What is the name of Earth’s moon?
Mars is a planet. Mars was the Roman god of war and agriculture.
The core of Mars is nickle iron/silicate. Mars has rocks all over it.
If you weighed 70 pounds (32 kg) on Earth, you would weigh about 27
pound (12 kg) on Mars.
Picture of Mars
Mars 1facts
• 1 mars protected those who fought for their
communities and stayed home to raies crops
for food in greek mars was konow as ares.
Mars is a
wonderful
planet and
some people
think that
there are
aliens.
Mars was the Roman god of war and
agriculture. It may not seem like these
two things go together, but they do. Mars
protected those who fought for their
communities, and stayed home to raise
crops for food. In Greek, Mars was known
as Ares.
The ice there, is mostly water ice,
permanently frozen. However,
there’s a thin layer of frozen carbon
dioxide-dry ice-that coats it every
winter and melts every summer.
That means the ice cap changes all
the time, making it interesting to
study.
This is the ice
cap on Mars.
The core
of Mars is
called
nickle
iron/
silicate.
By Morgan
Murray
This is
Mars and
all of its
rocks.
Jupiter’s profile
Jupiter’s orbit is up to: 778,330,000 km from the Sun.
Jupiter’s diameter reaches up to: 142, 984 km.
Jupiter’s mass reaches up to: 1.900.27 kg.
Jupiter is the fourth brightest object in the sky, after the Sun,
the Moon, and Venus.
Jupiter has been known since prehistoric times as a bright ‘’
wandering star. ‘’ But in 1610 Galileo first pointed a telescope
out in the sky and he discovered Jupiter’s four large moons
Io, Europa, Ganymede, and Callisto now known as the
Galilean moons.

Jupiter had a liquid metal ocean [ metallic
hydrogen] at its centre, surrounded by
thousands of kilometres of hydrogen and
helium gas. Jupiter’s famous red spot is in fact
a storm the size of the Earth that has raged for
hundreds of years. Jupiter has a thin set of
rings, hardly visible, even with telescopes,
from Earth. Jupiter is the vacuum cleaner of
space, it sucks in comets, asteroids and
meteorites which could be on a collision course
for Earth.
Jupiter
By Ellie G
Jupiter is the biggest planet in the solar
system.
 It has 1 ring .
 It has 1 moon.
 It was the smallest planet ages ago.

About Jupiter
Saturn
By Millie
Saturn facts
• Saturn is the sixth planet away from the Sun
• Saturn is the least dense of the planets; its
specific gravity is less than that of water.
• Saturn's rings are extraordinarily thin: though
they're 250,000 km or more in diameter they're
less then one kilometre thick. Despite their
impressive appearance, there's really very little
material in the rings -- if the rings were
compressed into a single body it would be no
more than 100 km across.
Saturn’s rings
• Ring A is very bright and outer-lying. It has its moon
named Daphnis orbiting inside it.
• Ring B is the largest and densest of all Saturn rings.
• Ring C is very faint.
• Ring D is located closest to Saturn and is hard to see.
• Ring E is a very wide and outer-lying ring made of ice
chunks.
• Ring F has the unique spiral strand around it. It is the
farthest ring from Saturn.
• Ring G is situated between rings F and E. It is small and
hardly visible.
• Ring O was discovered in 2010. Now it is supposed to
be the largest ring.
Saturn is a big… a big gas planet! The shining rings around Saturn,
are made of millions and millions chunks of ice. These circle
around the planet like tiny moons and shine by reflecting sunlight
from their surfaces.
Saturn was one of the 5 planets that could be seen with a naked
eye that have been known to exist for a thousand years. The
ancient Greeks knew about this planet and they named it after their
god of Agriculture - Kronos. That may be due to the planets golden
colour, which is similar to wheat. Later the planet was known as
Saturnuss or Saturn as we call it, which was the Roman equivalent
of Kronos.
Quiz time!
How many planets could be seen with a naked eye?
A.1
B. 8
C. 5
What did the Greeks call Saturn?
A. Ringus
B. Saturnuss
C. Saitunus
Uranus
By Amy
Random facts
Fun facts about William Hershel
Fun fact!
Uranus temperature
is a minimum
temperature of 49 K
(−224.2 °C) and is
closest to Neptune !
By Alanah Winfield
Facts!




Uranus speed is 6.80km/s (I have no idea how slow that is!)
It’s temperature is 49 K (−224.2 °C)!
It has the third-largest planetary radius!
The only thing that has ever landed on it is a satellite called Voyager 2 and took
some amazing pictures!
Some people
think I look like
an egg!
Neptune the
discovery!
Fun fact!
The average temperature is -184C!
Facts of discovery!
Neptune is the smallest of our four gas giants in our solar system. Much like
Saturn and Uranus, Neptune’s atmosphere contains hydrogen, helium and
methane. Neptune has 18 moons that we know of because Neptune is so far
away, it is difficult to see any of these worlds. There are probably many more
moons orbiting this blue planet which we have not yet discovered!
The first moon orbiting Neptune was Triton.
1 orbit of the Sun: 60,190 days
1 rotation: 17 days 16 hours
Mass: 17 times more than the Earth!
Volume: 57 times more than the
Earth!
Escape Velocity:84,651km/h
(52,600mph)
Distance from Sun: 4,496 million
kilometres (2,794 million miles).
Neptune’s Inner moons: Naiad,
Thalassa, Despina, Galatea.
Outer moons: Larissa, Proteus, Triton,
2005 fy9, Nereid, Gabrielle, Eris,
Sedna, Nix, Hydra, Orcus, Varuna,
2003 EL61, Quaoar!
Pictures of Neptune
Facts of Neptune!
The atmosphere is Hydrogen, Helium and Methane.
Neptune is the eighth planet from the Sun. At this distance, the
Sun and asteroid belt look very small! Neptune was discovered by
Johann Gaelle and Heinrich D’Arrest in 1846. When Voyager 2
visited Neptune, pictures of a giant storm much like the storm
that happened on Jupiter. This storm is called “Great Dark Spot”
because it appears as a big oval spot on the surface of Neptune!
The winds near the Great Dark Spot were believed to have
reached nearly 1,200 mph ( approx 1931 km).
Neptune has a dark spot at the bottom of the planet scientists
believe that this dark spot is a raging storm that is the size of
Earth. Neptune is one of the windiest planets in the whole solar
system no other planet in the solar system has as strong winds as
Neptune. The storms that are next to the great dark are believed
to have reached up to 1,200 mph which is very fast for a storm.
Perhaps this extremely windy atmosphere contributes to the
appearance and the disappearance of the great dark spots. Neptune
is blue because its atmosphere is made up of Hydrogen, Methane and
Helium this is why Neptune appears blue when we look at it.
Neptune has six big rings circling the planet. These
rings are believed to be quite new and not very
old. The rings are more irregular than any other
planets rings. There are areas of big thickness on
these six rings. The colour of Neptune's rings was
only discovered last year in October. Scientists are
still trying to discover things about the rings of
Neptune because not much is known about them.
 Triton Neptune's biggest moon
 Despina
 Galatea
 Halimede
 Laomedia
 Larissa
 Naiad
 Nereid
 Neso
 Proteous
 Psamathe
 Sao
And Thalassa
Pluto was thought to be the god to whom all men must eventually go. Romans
believed him to be the god of the underworld. In Greek mythology, he is known
as Hades. Because Pluto is so small you would be very light if you visited. If
you weigh70 pounds on Earth, you would only weigh 4 pounds on Pluto.
Pluto is the only planet to be named by a kid. After the planet was discovered
in 1930, an 11-year-old girl who lived in Oxford, England, by the name of
Venetia Burney.
Pluto is one of the outer
planets. Pluto use to be a
planet but we don’t class
it as one now.
Pluto
It was smallest planet of all but now it isn't a planet
any more.
By Ellie M
ASTEROIDS
By Alfie
• An asteroid is a very large rock in outer space and most times
lands on other planets. Some asteroids are as big as a grain of
sand. All small asteroids don’t have enough gravity to pull them
self into a ball and that’s why there not a ball. Astronomers
group asteroids into different categories based on the way they
reflect sunlight.
The asteroid belt is divided into a inner belt and a outer belt. The
inner belt, which is made out of asteroids that are within 250 million
miles (402 million km) from Sun, contains asteroids that are made
of metals. Asteroids are left over materials form the galaxy.
Have you learnt
something ?
Meteorites
Did you know that a meteorite is
made out of ice, rock and metal?
If you saw a meteorite then you would
need to get out your telescope.
The meteorites
• Meteorites are very old.
 Meteorites are basically a shooting star.
 Meteorites are made out of metal and rock.
 Meteorites are mostly a little bigger than a
pebble.
 Some people call them fireballs.
 People think that meteorites are just the
same as comets but they are not.
Meteorites travel through the atmosphere each day.
Here is a website you might want to check out:
http://kidsastronomy.com/meteorites.htm
Doesn’t that look like a shooting star?
Well that’s because a shooting stars are
Meteorites!
As I said most
meteorites are the size
of pebbles but some
are the size of
boulders!
Thanks for watching hope
you learnt something!
By Dulcie
By Ashlee
This section will be about the Milky
Way and the things I've been learning
about it.
Milky Way
• The Milky Way is flat, round like a plate. The
Milky Way is really bright at night mostly
when it is midnight. The Milky Way is really
heavy it weighs 10,000000kg.
Here are some pictures of the
Milky Way.
MILKY WAY
By Nellie Kildin
FUN FACTS ABOUT THE
MILKY WAY
The Milky Way is a big galaxy of stars.
The Milky Way is
important to us
because if we didn’t
have the Milky Way we
wouldn’t be here right
now!
A moon is out in space. You can see it at
night, when the mist, goes away.
Moons intro!!
The moons are all around the solar system some
planets have more than overs but it still makes
them special. Jupiter is the biggest planet which
means it has the most moons, Jupiter has 62 moons
that is a lot of moons. Mars only has 3 moons and
Earth has 1. So now you should know a bit about
the moons in the solar system.


There are known to be at least three Moons that
circle Mars. The three moon’s of Mars are
extremely small, they are only 12.6 km.
Although Mars only has 3 moons they are
known to be very special.
Some of the planets in the solar system have
loads of moons for example Neptune and
These are
Jupiter.
the
moon’s of
Mars .
• In 2004 Germany released a probe that was
meant to land on a comet .
• 10 years later in 2014 (this year) the probe
landed on the comet.
• Everyone that had worked on this probe and
tried to get it into space were very , very
happy!!!!!!!!
 On the outside of the probe are solar panels.
 On it’s legs are some arms that shoot out like anchors.
 Inside there is a camera to take pictures and send
them to us!
 And that’s how we get images of space.
The
Probe
• Yes!
• When the probe had landed it’s arm like daggers were meant
to plunge into the comets surface.
• But they didn’t work so the probe drifted off then landed
again in a shady spot!
• After 2days the probe lost power because it ran on solar
panels. So it couldn’t send us any images/pictures.