ABOUT US
The Surface of The Sun
Our Sun is a yellow dwarf star, a hot ball of glowing gases at the heart of our solar system. Its gravity holds the solar system together, keeping everything – from the biggest planets to the smallest particles of debris – in its orbit.
The connection and interactions between the Sun and Earth drive the seasons, ocean currents, weather, climate, radiation belts, and auroras. Though it is special to us, there are billions of stars like our Sun scattered across the Milky Way galaxy.
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The Sun orbits the center of the Milky Way Galaxy, bringing the planets , asteroids , comets , and other objects along with it . The Sun rotates as it orbits the center of the Milky Way . Its spin has an axial tilt of 7.25 degrees . Since the Sun is not a solid body , so different parts of the Sun rotate at different rates
Images from : en.wikipedia.org
Images from : qz.com
The Size and the Potential for Life
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With a radius of 432,1686.6 miles ( 695,508 kilometers ) , our Sun is not an especially large star , but it is still far more massive than our home planet and for your information It would take 332,946 Earths to match the mass of the Sun . The Sun's volume would need 1.3 million Earths to fill it . The Sun is about 93 million miles ( 150 million kilometers ) from Earth
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The Sun itself is not a good place for living things , with its hot , energetic mix of gases and plasma . But the Sun has made life on Earth psosible , proviidng warmth as well as the energy that prganisms like plants use to form the basis of many food chains .
Image Credit : ESA and NASA
Images Credits : universetoday.com
The Sun has six regions :
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= The Core
= The Radiative Zone
= The Convective Zone in the interior
= The Visible Surface called the Photosphere
= The Chromosphere
= The Outermost Region
= The Corona
The surface of the Sun , the Photosphere , is a 300-mile-thick
( 500-kilometers-thick ) region , from which most of the Sun's radiation escapes outward . This is not a solid surface like the surfaces of planets . Instead , this is the outer layer of the gassy star .
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We see radiation from the Photosphere as sunlight when it reaches Earth about eight minutes after it leaves the Sun . The temperature of the photosphere is about 10,000 degrees Fahrenheit
( 5,500 degrees Celcius )
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The photosphere is the visible "surface" of the Sun. The Sun is a giant ball of plasma (electrified gas), so it doesn't have a distinct, solid surface like Earth. Sunlight that is created by nuclear fusion in the Sun's core ( center ) gradually works it's way outward, colliding over and over with atoms in the Sun's interior. After a million-year journey, the sunlight finally reaches a level where the plasma is less dense and photons stop running into atoms and can finally escape into space. This level is what we see as the glowing "surface" of the Sun : the photosphere.
Credits : nasa.gov
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