Why Does The Photosphere Have A Boiling Appearance?
Close-up views of the photosphere also show patterns of light areas surrounded by darker borders called “granulation.” Similar to the patterns you can see at the top of a pot of boiling water or oatmeal granulation is caused by heat rising upward to the photosphere from the hotter solar interior.
When viewed through a telescope what type of texture does the photosphere appear to have?
It has a grainy texture when viewed through a telescope. Comparatively small bright markings that give the photosphere its grainy texture. They’re typically the size of Texas and owe their brightness to hotter gases that are rising from below.
Why can’t we see the material below the Sun’s photosphere?
Since the Sun is made up of hot gas there isn’t really a “surface” to it. Instead as you move from space toward the Sun’s core the gas gets denser and denser. The photosphere represents the depth at which we can see no deeper toward the core of the Sun.
What is the cause of the irregular grainy appearance of the solar surface?
Granules on the photosphere of the Sun are caused by convection currents of plasma within the Sun’s convective zone. The grainy appearance of the solar photosphere is produced by the tops of these convective cells and is called granulation. It indicates that convection is taking place from the interior.
Why is the bright yellow disk of the Sun the photosphere cooler than the areas both above and below it?
Why is the bright yellow disk of the Sun the photosphere cooler than the areas both above and below it? Because the helium causes the heat to rise quickly. … They are appear dark in visible light because they are much cooler than the rest of the surface of the Sun.
What is photosphere and chromosphere?
What are the photosphere chromosphere and corona?
Beginning from the outside they are: the corona – the outermost hot shell of the atmosphere. the chromosphere – a transparent layer between the corona and the photosphere. the photosphere – the visible “surface” of the Sun.
Why is the chromosphere hotter than the photosphere?
The Sun may look like just a mass of incandescent gas (plasma really) but it’s actually broken up into layers. The chromosphere is relatively thin region of the Sun that’s just above the photosphere. … Even though it’s more distant from the center of the Sun the chromosphere is hotter than the photosphere.
How hot is the chromosphere of the Sun?
about 36 000 degrees F.
the chromosphere is the innermost atmospheric layer. It is just above the photosphere. Here the temperature begins to rise again to about 36 000 degrees F.
What evidence do we have that the chromosphere is hotter than the photosphere?
What evidence do we have that the chromosphere is hotter than the photosphere? Astronomers know that the chromosphere is hotter than the photosphere through observing the amount of ionization. They observe that the chromosphere is hot enough to produce x-rays that can be studied with telescopes.
What happens in the chromosphere of the Sun?
NASA/Marshall Solar Physics. The chromosphere is an irregular layer above the photosphere where the temperature rises from 6000°C to about 20 000°C. At these higher temperatures hydrogen emits light that gives off a reddish color (H-alpha emission).
What heats up the corona quizlet?
The heating of the corona and chromosphere is believed to be caused by the convection of gas this convection shakes the magnetic field lines and energy is carried up them into the solar atmosphere where the energy is released as heat.
What causes sunspots quizlet?
What causes sunspots? Magnetic fields breaking through the photosphere inhibit gas motion where the field is strong.
What is the Sun’s photosphere quizlet?
Photosphere. Definition: The photosphere is the visible surface of the sun. Sentence with extra information: The photosphere is the innermost layer of the sun. Chromosphere. Definition: The chromosphere is outside of the photosphere and is approximately 2 500 km thick and has a temperature of nearly 30 000 Kelvin.
What heats the chromosphere and corona to high temperatures?
How do astronomers think the solar chromosphere and corona gets heated to their high temperatures? Magnetic fields carry heat outward from lower layers.
Why is the surface of the Sun hotter than the core?
What is the purpose of the chromosphere?
The chromosphere may play a role in conducting heat from the interior of the sun to its outermost layer the corona.
Why the photosphere shows an absorption spectrum while the chromosphere shows an emission spectrum?
The photosphere emits all the electromagnetic radiation of a continuous spectrum when it pass through the solar atmosphere certain radiations are absorbed by the molecules so the absorption spectrum gives the details of the solar atmosphere.
What is the temperature difference between the overall photosphere and a sunspot on the photosphere?
The temperature in the photosphere is about 10 000 degrees F (5 500 degrees C). It is here that the sun’s radiation is detected as visible light. Sunspots on the photosphere are cooler and darker than the surrounding area. At the center of big sunspots the temperature can be as low as 7 300 degrees F (4 000 degrees C).
What is the difference between photosphere and corona?
The photosphere is the Sun’s outer shell from which light is radiated. … It is normally only visible during a solar eclipse. The corona is plasma surrounding the Sun which extends hundreds of kilometers from the surface of the Sun. It is much hotter than the surface of the Sun with temperatures reaching 3 000 000K.
Why does the chromosphere appear red?
The chromosphere appears red because of the large amount of hydrogen present. You can see this red color at the very edge of the Sun during a total solar eclipse. … These gigantic plumes of gas are trapped by magnetic fields above the photosphere reaching altitudes of 150 000 km above the Sun.
What is the difference between the chromosphere and corona?
is that corona is (star) the luminous plasma atmosphere of the sun or other star extending millions of kilometres into space most easily seen during a total solar eclipse while chromosphere is (star) the faint pink extension of a star’s atmospheric envelope between the corona and the photosphere.
Why is the solar corona so much hotter than the photosphere quizlet?
Why is the solar corona so much hotter than the photosphere? Energy is carried upward through the chromosphere by disturbed and tangled magnetic fields. … The umbra of a sunspot is about 1500 K cooler than the surrounding solar photosphere.
What does the word chromosphere mean?
Definition of chromosphere
: the region of the atmosphere of a star (such as the sun) between the star’s photosphere and its corona.
What is the hottest thing in the universe?
Supernova
The hottest thing in the Universe: Supernova The temperatures at the core during the explosion soar up to 100 billion degrees Celsius 6000 times the temperature of the Sun’s core.Nov 12 2021
What does the chromosphere contribute to the solar spectrum?
A wavelength of 656.3 nm is in the red part of the spectrum which causes the chromosphere to have its characteristic reddish colour. By analysing the spectrum of the chromosphere it was found that the temperature of this layer of the solar atmosphere increases with height in the chromosphere itself.
What is the chromosphere made up of?
The chromosphere is mainly made of hydrogen and helium plasma which is ionized to produce red visible light as seen during an eclipse.
Why is the photosphere thin?
Simply put there is too little matter to emit much light. This leaves a thin layer in between about 500 km thick where the gas is dense enough to emit an intense thermal radiation spectrum yet not so opaque that we cannot see the light emanating from it.
Why is the temperature at the region of a sunspot cooler than the photosphere quizlet?
Why is the temperature at the region of a sunspot cooler than the photosphere? Powerful magnetic fields inhibit the convective flow of the gases of the photosphere allowing them to cool for longer than would normally be permitted.
What is the eruption of gases from the chromosphere?
Solar flares are sporadic local eruptions of the chromosphere. They develop suddenly and rapidly in minutes and cover a relatively small region of the solar surface. Initially they manifest themselves by a localized sudden brightening. The duration of a solar flare ranges from about 20 minutes to as much as 3 hours.
Why is the corona not brighter than the photosphere?
Why? The corona is about 10 million times less dense than the Sun’s surface. This low density makes the corona much less bright than the surface of the Sun.
What is chromosphere of sun?
Where is the chromosphere of the Sun quizlet?
Where is the chromosphere on the Sun? It is the layer above the visible surface of the Sun.
What layer of the sun is just below the photosphere?
The area of the Sun’s interior immediately below the photosphere is called the convection (or convective) zone. The lower section of the Sun’s atmosphere the chromosphere lies above the photosphere.
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