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| The Venus Planet |
The planet Venus is the second planet from the sun. The Venus name of planet is named
after the beautiful Roman goddess because of planet’s brightness and shinning
appearance in the sky. After our moon, Venus is the second brightest object in
night sky. The distance from the sun is 108 million km or 67 million miles. The
planet is hotter than Mercury Planet because of Venus atmosphere and Venus temperature.
The color of the Venus is yellowish but at night it appears as bright white to
eyes. The Venus rotates around its axis clockwise, unlikely the other planets
in solar system. The Venus rotates around
its axis very slowly. The planet takes 243 Earth days to rotate at once around
axis and orbit around the sun requires 224.7 Earth days. That means the day of
Venus is longer than year. This is the only planet of solar system on which the
day is longer than the year. The
Venus is closest to the Earth and called as Twins planet. The two planets are
nearly the same in size and structure. The Venus orbit closest to the Earth’s
orbit around the sun.
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| The Venus Planet. |
The Venus is brightest object after
our Moon. So anyone can see it with naked eyes at night. The diameter of the planet is 12,104 km (7,520.8
miles). This is only 638.4 km (396.7 miles) less than Earth’s diameter. And the
mass is 81.5% of the Earth. The Venus is rocky body as like Earth. The density of Venus is nearly the same
as Earth’s density. The density of Venus is 5.24 g/cm3 and Earth’s
density is 5.51 g/cm3. So Venus and Earth called Twin Planets. But
the atmosphere is not similar as Earth. Atmosphere of Venus has very high concentrations
of greenhouse gases. Greenhouse gases will absorb the hit and will increase the
temperature of planet. The Venus does not have any natural satellite as like
Earth’s Moon.
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| The Venus with atmosphere |
The Venus atmosphere
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| The Venus: Greenhouse Effect. |
Does The Venus have atmosphere? The Venus have very thick and hot atmosphere. Atmosphere consists of 96% of carbon dioxide, 3.5% of Nitrogen and in 0.5%, carbon monoxide, argon, Sulphur dioxide and water vapor. So the atmospheric pressure is very high over 90 times than the Earth. The atmosphere is mainly made up of carbon dioxide and thick clouds of sulphuric acid droplets, so the atmosphere is very toxic. The sulphuric acid clouds cover entire planet. As the carbon dioxide is main content (96%) of atmosphere, the hit comes from sun is absorbed and trapped in atmosphere which increase the temperature of the planet. The maximum surface Temperature of Venus is 470 degrees Celsius. These sulphuric acid clouds are 30 miles up from surface of planet but the temperature is same as that of on the surface. The atmosphere mainly has two main parts as Troposphere and Thermosphere. Troposphere is closest from surface. Troposphere has first clear atmosphere of mainly carbon dioxide and above it has lower haze of dust and sulphuric acid aerosol (extremely small droplets). Thermosphere has first thick cloud layers containing droplets of sulphuric acid and above it has haze containing droplets of sulphuric acid. On the Earth, we experience rain of water droplets but on Venus, acid rain is raining. But there is no rainfall on the surface of Venus. When sulphuric acid falls from the sky of Venus, it evaporates at distance 25 km above the surface.
What is Venus made of?
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| The Composition of The Venus Planet. |
Now, what is Venus made of? The Inner
Core is made of semi solid iron metal. The Core is approximately 3200 km (2000
miles) in radius. The inner core is mostly made up of iron and nickel. The
inner core has very high temperature. But the intense pressure at the inner
core of planet does not allow the inner core stay in molten form. So the inner
core of planet is solid ball. The outer
core of the Venus is also made up of iron and nickel. But the pressure at
this layer is less than inner core. So due to the very high temperature, the
outer core is in molten form. The Mantle
of Venus is similar to the Earth’s Mantle. But not strong as that of Earth’s
Mantle. The Mantle rock is rich in magnesium and iron. The thickness of Mantle
is 3000km. The Mantle is made of hot rock, which is slowly churning due to the
planet’s interior hit. The Crust of
Venus is very thin layer. The thickness of crust is only 50 km. The Planet
loses its heat through its rocky crust. Due to the Mantle shifts, the crust
moves to creates volcanic activities which will increase heat loss. The Crust
is made of silicates and metals and mostly appears to be of volcanic and basaltic.
The Venus does not have global tectonics as there is no Earth. Because of no
actively moving tectonic plates, the creation, displacement and eruption of
magma is different than it is on Earth.
Orbit of The Venus
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| The Orbit Of the Venus. |
Every Planet in our solar system orbits around the
sun. The Venus orbits around sun in clockwise that is most planet orbits anti
clockwise. In the planet Venus history, it rotates anti clockwise as like other
planets in solar system but the unknown object collides to change its spin as
clockwise. So on the Venus sun rises on west and sets on east side. But this occurs
very few time due to the very slow speed of Venus around its axis. Venus takes
243 Earth days to rotates about its axis and it takes approximately 225 Earth
days to rotates around the sun. So here is day of Venus is longer than the
year. That means, only one sun rise or sun set in one year of Venus. The Venus
spins nearly upright, and so Venus does not experience noticeable seasons. The
Orbital speed of Venus is 35.02 km per second. The planet orbits in nearly a
perfect circular orbit.
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| The Orbit of the Venus planet. |
Magnetic Field
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| The Venus planet Magnetic field. |
The Venus rotates around its axis is very slow.
The Earth rotates in 24 hours, so it is very fast as compared with Venus
rotation. So Metallic liquid flowing in core has faster than Venus. This flow
of metallic liquid generates a measurable global magnetic field around Earth.
But Venus requires 243 Earth days to complete one rotation around its axis. So
it predicts lack of any liquid metallic portion of its core could not be
rotating fast enough to generate a measurable global magnetic field. As
compared to Earth, the Venus has no magnetic field. Due to lack of magnetic field, the radiations from sun
reaches to the surface of Venus and carbon dioxide traps the heat radiation.
This results in to increase in temperature of Venus.
Transit of Venus
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| The Venus transit across the sun. |
The Transit of Venus across the sun, when Venus passes between the sun and earth, it is one type of eclipse but in this sun does not covers and not appears dark. When Venus transit across sun, Venus appears as tiny dark spot on the sun. The transit of Venus is very rarest astronomical event than the transit of Mercury. Because orbit of Venus is longer than Mercury. On an average only two transits of Venus observed every 125 years. The Transit of Venus is observed in June 2012. And the previously observed in December 4, 1639 and next transit will occur in 2117.
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