Interesting

How long does it take photons to escape the Sun?

How long does it take photons to escape the Sun?

Very approximately, this means that to travel the radius of the Sun, a photon will have to take (696,000 kilometers/1 centimeter)^2 = 5 x 10^21 steps. This will take, 5×10^21 x 3 x10^-11 = 1.5 x 10^11 seconds or since there are 3.1 x 10^7 seconds in a year, you get about 4,000 years.

How do photons leave the Sun?

The “sticking” eventually creates helium and also releases energy in the form of gamma-ray photons. Those photons make their way through the particles in the sun, losing some energy along the way and finally making their way out of the sun as x-rays, infrared and visible light.

How long does it take for a photon to cross the radiative zone?

50 million years
Particles of light called photons can only travel a few millimeters before they hit another particle in the Sun, are absorbed and then released again. It can take a photon as long as 50 million years to travel all the way through the radiative zone.

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How long does it take photons to move through it?

Traveling at the speed of light, photons emitted by the Sun take a little over eight minutes to reach the Earth.

What is the sun really made up of if not gas?

The sun is not a solid mass. It does not have easily identifiable boundaries like rocky planets like Earth. Instead, the sun is composed of layers made up almost entirely of hydrogen and helium.

How far does a photon travel?

You guessed it, the photons reach zero distance and zero time. Photons can take hundreds of thousands of years to travel from the core of the Sun until they reach the surface and fly off into space.

How far does the light from our sun travel?

The Sun is at an average distance of about 93,000,000 miles (150 million kilometers) away from Earth. It is so far away that light from the Sun, traveling at a speed of 186,000 miles (300,000 kilometers) per second, takes about 8 minutes to reach us.

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How does a photon reach Earth?

A photon is an elementary particle that is composed of electromagnetic energy. Gas molecules absorb the photons and then instantly re-emit them. When the photons are re-emitted they are sent about the inside of the Earth’s atmosphere in random directions, although the majority of them fly toward Earth’s surface.

Do photons from the radiative zone escape into space?

The photons of energy have finally, after 100,000 years, come to the end of their journey inside the Sun. They have now reached a zone which is transparent to light. The photons escape into space, and travel at the classic speed of light — around 300,000 kilometres per second.

What is the Sun really made up if not gas?

The sun is made of about three-quarters hydrogen, one-quarter helium, and some other heavier elements like carbon, oxygen and iron, in very small quantities. The hydrogen and helium are in a gas form. But the hydrogen (H) and helium (He) atoms are much closer together in the sun than what you might imagine.

What happens to a photon when it leaves the Sun?

Leaving the surface of the Sun, our photon then enters the Sun’s atmosphere, which (like Earth) has multiple layers. Our photon passes through the thin photosphere first, before entering the thicker chromosphere.

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How does light travel from the sun to Earth?

This particle, created in the solar core, transmits the light beam to Earth. To send us this photon must traverse the various layers of the Sun. The transit time of a photon of the heart at the surface is between 10 000 and 170 000 years based on collisions.

What happens to photons when they enter the radiative zone?

As our photon leaves the core and enters the radiative zone, it encounters an obstacle: densely packed protons. They are so crammed together, photons can’t travel more than a few millimeters without hitting another one. Each time one does, it loses some of its energy and is scattered in a random direction.

What percentage of photons emitted by the sun reach Earth’s orbit?

We can assume 100\% of the photons the Sun emits reach the distance of Earth’s orbit. (OK, we’ll ignore Mercury and Venus here.) So we assume 100\% of them pass through a sphere which surrounds the Sun, and has the same radius as the Earth’s orbit.