Download VENUS • Second planet from sun. • named after the

VENUS
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Second planet from sun.
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named after the roman goddess of love and beuty.
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Venus is sometimes called the sister planet of the earth beacuse of its
similar size,gravity and bulk composition.
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consist of 96% carbon dioxide.
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hottest planet in the Solar System. It has no carbon cycle to lock
carbon back into rocks and surface features.
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Venus' surface is a dry desertscape interspersed with slab-like rocks
and periodically refreshed by volcanism.
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Venus is always brighter than any star outside our solar system.
EARTH
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Also known as our home planet.
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Earth formed approximately 4.54 billion years ago, and life appeared
on its surface within its first billion years.
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largest of our 4 teresstrial planets.
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During one orbit around the Sun, the Earth rotates about its own axis
366.26 times, creating 365.26 solar days, or one sidereal year.
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Earth's atmosphere and oceans formed by volcanic activity and
outgassing that included water vapor.
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About 71% of the surface is covered by salt water oceans, with the
remainder consisting of continents and islands which together have
many lakes and other sources of water that contribute to the
hydrosphere.
MOON
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is Earth's only natural satellite.
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the Earth's Neighboor.
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diameter about one quarter of earth.
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It is the largest moon in the Solar System relative to the size of its
planet.
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Due to the moon and earth's tidal interaction, the Moon recedes from
Earth at the rate of approximately 38 mm a year.
JUPITER
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Largest planet in the solar system with a diameter of 142,984 km
(88,846 mi) at its equator.
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It is a gas giant with mass one-thousandth of that of the Sun but is two
and a half times the mass of all the other planets in the Solar System
combined.
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Jupiter is primarily composed of hydrogen with a quarter of its mass
being helium, although helium only comprises about a tenth of the
number of molecules.
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Jupiter has been explored on several occasions by robotic spacecraft,
most notably during the early Pioneer and Voyager flyby missions and
later by the Galileo orbiter.
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Jupiter is perpetually covered with clouds composed of ammonia
crystals and possibly ammonium hydrosulfide.
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The best known feature of Jupiter is the Great Red Spot, a persistent
anticyclonic storm that is larger than Earth, located 22° south of the
equator.
SATURN
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Saturn is a gas giant with an average radius about nine times that of
Earth.
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Saturn's interior is probably composed of a core of iron, nickel and rock
(silicon and oxygen compounds), surrounded by a deep layer of
metallic hydrogen, an intermediate layer of liquid hydrogen and liquid
helium and an outer gaseous layer.
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Saturn has a prominent ring system that consists of nine continuous
main rings and three discontinuous arcs, composed mostly of ice
particles with a smaller amount of rocky debris and dust.
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Saturn has at least 150 moons and moonlets, 53 of which have formal
names.
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The rings extend from 6,630 km to 120,700 km above Saturn's
equator, average approximately 20 meters in thickness and are
composed of 93% water ice with traces of tholin impurities and 7%
amorphous carbon.
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Saturn's atmosphere exhibits a banded pattern similar to Jupiter's, but
Saturn's bands are much fainter and are much wider near the equator.
URANUS
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Uranus is similar in composition to Neptune, and both are of different
chemical composition than the larger gas giants Jupiter and Saturn.
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Uranus's atmosphere, although similar to Jupiter's and Saturn's in its
primary composition of hydrogen and helium, contains more "ices"
such as water, ammonia, and methane, along with traces of
hydrocarbons.
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Uranus revolves around the Sun once every 84 Earth years.
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Uranus has an axial tilt of 97.77 degrees, so its axis of rotation is
approximately parallel with the plane of the Solar System.
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Humor: Uranus is frequently a subject of crude humor due to the
colloquial pronunciation of its name as "your-anus". However, these
jokes do not reflect the pronunciation preferred by astronomers, which
is "you-ranus", with stress on the first syllable.xD
NEPTUNE
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Among the gaseous planets in the solar system, Neptune is the most
dense. Neptune is 17 times the mass of Earth and is slightly more
massive than its near-twin Uranus, which is 15 times the mass of Earth
but not as dense.
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At high altitudes, Neptune's atmosphere is 80% hydrogen and 19%
helium.
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Neptune has a planetary ring system, though one much less
substantial than that of Saturn. The rings may consist of ice particles
coated with silicates or carbon-based material, which most likely gives
them a reddish hue.
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Neptune's more varied weather when compared to Uranus is believed
to be due in part to its higher internal heating.
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Neptune's orbit has a profound impact on the region directly beyond it,
known as the Kuiper belt. The Kuiper belt is a ring of small icy worlds,
similar to the asteroid belt but far larger, extending from Neptune's
orbit at 30 AU out to about 55 AU from the Sun.
MARS
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it is often described as the "Red Planet" because the iron oxide
prevalent on its surface gives it a reddish appearance.
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Mars is a terrestrial planet with a thin atmosphere, having surface
features reminiscent both of the impact craters of the Moon and the
volcanoes, valleys, deserts, and polar ice caps of Earth.
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Mars can easily be seen from Earth with the naked eye, as can its
reddish coloring.
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Like Earth, this planet has undergone differentiation, resulting in a
dense, metallic core region overlaid by less dense materials.
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Mars is a terrestrial planet that consists of minerals containing silicon
and oxygen, metals, and other elements that typically make up rock.
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Liquid water cannot exist on the surface of Mars due to low
atmospheric pressure, except at the lowest elevations for short
periods.
MERCURY
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Mercury is the smallest and closest to the Sun of the eight planets in
the Solar System,with an orbital period of about 88 Earth days.
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Seen from the Earth, it appears to move around its orbit in about 116
days, which is much faster than any other planet.
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Mercury makes three rotations about its axis for every two revolutions
around its orbit, as seen relative to the fixed stars.
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Mercury does not experience seasons in the same way as most other
planets, such as the Earth.
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it moves around its orbit in about 116 days,which is more faster than
other planets
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Because it has almost no atmosphere to retain heat, Mercury's surface
experiences the greatest temperature variation of all the planets,
ranging from 100 K (−173 °C; −280 °F) at night to 700 K (427 °C; 800
°F) during the day at some equatorial regions.
SUN
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Is the star in the center of our solar system.
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It is almost perfectly spherical and consists of hot plasma interwoven
with magnetic fields.
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The core of the Sun is considered to extend from the center to about
20–25% of the solar radius.
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Like other natural phenomena, the Sun has been an object of
veneration in many cultures throughout human history. Humanity's
most fundamental understanding of the Sun is as the luminous disk in
the sky, whose presence above the horizon creates day and whose
absence causes night.
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The brightness of the sun can cause pain from looking at it with the
naked eye; however, doing so for brief periods is not hazardous for
normal non-dilated eyes.Viewing the Sun through light-concentrating
optics such as binoculars may result in permanent damage to the
retina without an appropriate filter that blocks UV and substantially
dims the sunlight.
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Sunlight is Earth's primary source of energy. The only other source of
energy the Earth has are the fissionable materials generated by the
cataclysmic death of another star. These fissionable materials trapped
in the Earth's crust is what gives rise to geothermal energy, which
drives the volcanism on Earth while also making it possible for
mankind to fuel nuclear reactors.