How old is sunlight by the time it reaches the surface? The interior of the sun consists of three major zones, each with its own unique properties. Which means the distance from the Earth to the furthest star is zero. The 8-minute travel time to Earth by sunlight hides a thousand-year journey that actually began in the core. It's energy gets absorbed and converted into an electrical signal. This is one of those great facts that the cognoscenti love to throw around, like “did you know that we only use 10% of our brains?”. As you wander about, you hit a tree and move around It does this by penetrating the atmosphere and being absorbed by the land and water. When they hear "you will be 35,000,000 and 9 years old when that beam hits that galaxy" I usually get an awed laugh. ?". I think I'm going to plant more lettuce and fewer tomato plants this year. So my photon would show up fashionably late. All Rights Reserved. Unfortunately, like the 10% thing, there are details behind … Hence the photon will take about a million year to make the trip. Physicist: The original statement is often something like, “It takes tens of thousands of years for a photon to get from the core to the surface of the Sun, but only eight minutes to get from the Sun to the Earth”. It is these estimates that find their way into many popular astronomy textbooks. If you think it's about a centimeter, then it will take about 5,000 years for the photon to get outside the sun. A photon of light takes only eight minutes to get to the Earth from the surface of the Sun. Which layer produces most of the light we see? When photons are traveling from the Sun's atmosphere to the Earth's atmosphere they are said to be in space. You would be surprised to know that this simple, and very popular, question seems to be without a firm answer! As I understand it, the photon's convoluted path from its parent-pair of fusing hydrogen atoms through the stellar interior to the surface is 10^6 light years long. well-I was walking in the woods the other day. Some of this radiated light is in the infrared part of the spectrum and reaches Earth as heat. it takes a long time. I always get the expected answer of 35my. While it only takes 8 minutes and 19 seconds for the light from the surface of the sun to reach us, it actually takes about 10,000-170,000 years for a photon to travel from the core of the sun … When in space photons travel generally without restraint and reach the universal speed limit, c, the speed of light which is meters per second or 671 million miles per hour. Objects such as our Sun that form from giant clouds osf interstellar dust and generate energy by nuclear fusion reactions. Originally born as energetic gamma rays, after billions of collisions with matter, this radiation reaches the surface and escapes into space. As they compare brightness I usually hear 1 hour, two hours occasionally someone will say a week. It takes thousands of years for a photon to get from the sun's core to escape from the surface. So it depends a bit on your starting point. Why do they choose these properties. Next I will turn my laser to a distant star. Odenwald, S. F. 2004 - "How old is sunlight?" As energy is produced, photons are emitted and they are free to It takes approximately 8 minutes for our photon to travel the 93,000,000 miles (150 million kilometers) from the Sun to Earth. Most textbooks say that it takes light between 100,000 years and 50 million years to escape. travel. Once you know, or assume, a typical distance between collisions, you also have to figure out how many steps the photon has to take to travel from the core to the surface. Light takes about 8 minutes to reach the earth from the sun, though diffusing out from the sun's interior can take much longer (many thousands of years). How long does it take a photon to reach the surface of the sun? Because textbook authors and editors do not bother to actually make the correct calculation themselves, and rely on older published answers from similar textbooks. It then travels through the interior of the Sun and to the surface, at which point it travels through space, taking 8 minutes to reach the Earth. Tell me the change in distance over time between the Sun and the star (is it retreating or coming closer over long time scales? Their answer of 10-62 grams seemed incredibly insignificant. Answer 1 1/2 seconds. So from the photon's point of view, it arrives in my eyeball the instant it came into being. Only eight minutes for a photon to cover the distance between the sun and earth. How long does it take for the energy produced in the Sun's core to reach the photosphere? and the photon is continuously absorbed and re-emitted during its rise to the surface. hands are tied. they collide and are deflected, sometimes Usually M65, 66 this time of year. I bet Jimminy Crickit could do it lickity split! When did organ music become associated with baseball? Why don't libraries smell like bookstores? A classroom activity on the random walk problem. From the photon's frame of reference, and from the SURFACE of the sun, it takes no time at all, since from its perspective, traveling at nearly the speed of light, time is at a virtual standstill!
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