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Our Solar System
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Our Planets
•Sun
•Mercury
•Venus
•Earth
•Earth`s Moon
•Mars
•Jupiter
•Saturn
•Uranus
•Neptune
•Pluto
Others
•Asteroids
•Meteor and Meteorites
•Comets
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Sun
The Sun is the star at the center of the Solar System
The Sun's color is white, although from the surface of the Earth it
may appear yellow because of atmospheric scattering of blue light
The sun is made up entirely of gase light
The sun, like Earth, is magnetic
The sun was born about 4.6 billion years ago
The inside of the sun and most of its atmosphere consist of plasma
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Mercury
Mercury has very little atmosphere to stop impacts
it is covered with craters
Mercury’s surface is overall very similar in appearance to that
of the Moon
The orbit of Mercury has the highest eccentricity of all the
Solar System planets
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Venus
is the brightest of the planets known to the ancients
it shows phases when viewed with a telescope from the
perspective of Earth
Venus is only slightly smaller than Earth
There are no small craters on Venus
Venus is now quite dry
Venus has no magnetic field, perhaps because of its slow rotation.
Venus has no satellites
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Earth
is the third planet from the Sun and the densest and fifth-largest
of the eight planets in the Solar System
Home to millions of species including humans, Earth is currently
the only place where life is known to exist
Earth's outer surface is divided into several rigid segments
Earth interacts with other objects in space, especially the Sun and
the Moon
The planet is expected to continue supporting life for at least
another 500 million years
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Earth`s Moon
It is the second brightest object in the sky after the Sun
The Moon was first visited by the Soviet spacecraft Luna 2 in 1959
 there is no "dark side" of the Moon
The Moon has no atmosphere
Most rocks on the surface of the Moon seem to be between 4.6
and 3 billion years old
The Moon has no global magnetic field
With no atmosphere and no magnetic field, the Moon's surface is
exposed directly to the solar wind
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Mars
is smaller than Earth and Venus
It possesses an atmosphere of mostly carbon dioxide
Its surface, shows geological activity that may have persisted
until as recently as 2 million years ago
Its red colour comes from iron oxide in its soil
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Jupiter
is 2.5 times the mass of all the other planets put together
 It is composed largely of hydrogen and helium
Jupiter has 63 known satellites
Ganymede, the largest satellite in the Solar System, is larger
than Mercury
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Saturn
Saturn distinguished by its extensive ring system
Saturn has 60% of Jupiter's volume
The rings of Saturn are made up of small ice and rock
particles
Saturn has 62 confirmed satellites
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Uranus
is the lightest of the outer planets
Uniquely among the planets, it orbits the Sun on its side
It has a much colder core than the other gas giants
radiates very little heat into space
 Uranus has 27 known satellites
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Neptune
 Neptune, though slightly smaller than Uranus, is more
massive and therefore more dense
It radiates more internal heat, but not as much as Jupiter or
Saturn
Neptune has 13 known satellites
 is accompanied in its orbit by a number of minor planets,
termed Neptune Trojans
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Pluto
is the second most massive known dwarf planet in the Solar
System
is now considered the largest member of a distinct population
known as the Kuiper belt
 is composed primarily of rock and ice and is relatively small
Pluto and its largest moon, Charon, are sometimes treated as a
binary system because the barycentre of their orbits does not lie
within either body
has two known smaller moons, Nix and Hydra
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Ptolemy's "planetary spheres”
"
Modern
the Moon
Mercury
Venus
The Sun
Mars
Jupiter
Saturn
Medieval
Europe
☾ LVNA
☿
MERCVRI
VS
♀VENV
S
☉ SOL
♂ MARS
♃
IVPITER
♄
SATVRNV
S
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Asteroids
Asteroids are mostly small Solar System bodies composed
mainly of refractory rocky and metallic minerals
The main asteroid belt occupies the orbit between Mars
and Jupiter
Asteroids range in size from hundreds of kilometres across
to microscopic
The asteroid belt contains tens of thousands, possibly
millions, of objects over one kilometre in diameter
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Meteor and Meteorites
A meteorite is a natural object originating in outer space
that survives impact with the Earth's surface
Meteorites can be big or small
have been found on the Moon and Mars
are always named for the place where they were found,
usually a nearby town or geographic feature
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National College Iasi
Comets
Comets are small Solar System bodies, typically only a few
kilometres across, composed largely of volatile ices
They have highly eccentric orbits
Short-period comets have orbits lasting less than two hundred
years
Long-period comets have orbits lasting thousands of years
Old comets that have had most of their volatiles driven out by
solar warming are often categorised as asteroids
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Attractions! Black Hole
click here for details
http://www.nasa.gov/multimedia/videogallery/index.html
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The End!
Scarlat Ioana Bianca
Cojocariu Diana
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