The lower region of the Sun’s atmosphere
is called the chromosphere. Its name comes from the Greek root chroma (meaning color), for it appears bright red when viewed during a solar eclipse. The chromosphere extends for about 2,000 kilometers (1,200 miles) above the visible surface of the Sun.
What does the Sun’s photosphere do?
Photosphere, visible surface of the Sun, from which is
emitted most of the Sun’s light that reaches Earth directly
.
What does the chromosphere do?
But the red rim can only be seen during a total solar eclipse. At other times, light from the chromosphere is usually too weak to be seen against the brighter photosphere. The chromosphere may play a
role in conducting heat from the interior of the sun to its outermost layer, the corona
.
What are two facts about the chromosphere?
The chromosphere is a thin layer, about 2,000 to 3,000 kilometers (1,243 to 1,864 miles) thick. Its temperature
is 6,000 to 50,000 degrees Celsius
(10,800 to 90,000 degrees Fahrenheit), increasing with altitude. Scientists speculate that the temperature increases with altitude due to magneto-hydrodynamic waves.
What is the difference between corona and chromosphere?
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.
Can we see chromosphere?
It is
only seen during total solar eclipses
, or with sophisticated telescopes, and its red and pinkish color gives the blackened moon a thin halo of color against the greyish corona further out, hence its name ‘chromo’ sphere.
What is the hottest layer in the Sun’s atmosphere?
The hottest part of the solar atmosphere, which has a temperature of a million degrees or more, is called
the corona
. Appropriately, the part of the Sun where the rapid temperature rise occurs is called the transition region.
Why can we only see the photosphere?
Since the photosphere is cooler but less dense than the interior region it is the screen that allows the continuous blackbody spectrum to be seen through. Only at the
wavelengths at which atoms in the photosphere can absorb light will photons be impeded
in their outward travel.
What are the 7 layers of the Sun?
It is composed of seven layers:
three inner layers and four outer layers
. The inner layers are the core, the radiative zone and the convection zone, while the outer layers are the photosphere, the chromosphere, the transition region and the corona.
Which atom is found most in the Sun?
A:
Hydrogen and helium
are by far the most abundant elements found in the Sun, making up about 98 percent of its mass, but other, heavier elements play an important role in the physical processes that occur in the Sun.
How does the chromosphere affect Earth?
The layer above the photosphere is the chromosphere. The chromosphere
emits a reddish glow as super-heated hydrogen burns off
. But the red rim can only be seen during a total solar eclipse. … The chromosphere may play a role in conducting heat from the interior of the sun to its outermost layer, the corona.
Why do we need the Sun?
It
radiates light and heat
, or solar energy, which makes it possible for life to exist on Earth. Plants need sunlight to grow. Animals, including humans, need plants for food and the oxygen they produce. Without heat from the sun, Earth would freeze.
Definition: Corona is
a luminous envelope of plasma that surrounds the Sun and other celestial bodies
. It is extended to millions of kilometres into space and is commonly seen during a total solar eclipse. … The composition of the corona is the same as the interior of the Sun, mainly made up of hydrogen but ionized form.
Why we Cannot see corona and chromosphere?
We normally cannot see the solar atmosphere, including the corona.
The surface of the Sun is far too bright to allow a glimpse of the much fainter corona
. During a total solar eclipse the wispy corona briefly comes into view as the Moon blocks out the solar surface.
What is the coolest part of the Sun?
The photosphere
, which is outside the core, is the coolest layer. This is as expected, because normally heat passes outwardly from hot to cold. However, the Sun’s outermost atmospheric layer is much hotter than its surface layer!
How long is a day on the Sun?
At the equator, it would take
approximately 24.5 Earth days
while at the poles about 34 Earth days. One can also factor in time dilation, as one day on Earth (86,400 seconds) would be one day plus some change (86,400.2 seconds) on the Sun due to the fact that the Sun is much more massive than the Earth.
