0
How long does light from stars except the sun take to get to earth?
Wiki User
∙ 12y ago
The furthest star would be in the furthest galaxy. [See related question] That is about 12.9 billion light years from us - and probably accelerating away from us.
So light would take 12.9 billion years to reach us.
This is just the farthest galaxy we know of, considering the universe is bigger than what our cameras can pick up. Considering a common belief is that the universe is infinite.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoThe stars are all at different distances from Earth. The time elapsed while their
light reaches us ranges from 4.3 years for the nearest one outside the solar
system, to 14 billion years for the farthest ones we're able to detect.
Wiki User
∙ 12y agoIt took light from the farthest observed galaxy about 13 billion years to reach Earth.
Wiki User
∙ 14y agoA fraction over two years.
Add your answer:
Earn +20 pts
Why is it important to know how long light takes to reach the Earth?
Since light travels at a known speed and changes in frequency as it travels, it provides a way of measuring the distance to faraway stellar objects (stars, galaxies). This provides important clues to the structure of the universe. To the naked eye, dim nearer objects (asteroids, planets, stars) look the same as bright faraway ones (galaxies). Some distant stars and galaxies whose light reaches the Earth today no longer exist, at least not in the form they had when the light was emitted, many millions of years ago. As for the light from the Sun, its 8-minute travel time to Earth is an interesting concept, but has little bearing on how the Sun affects the Earth.
Why do scientists use light years to describe the distance between Earth and other stars?
Because in normal units the numbers are too . . . astronomical. At 299,979 km per second, light travels 1 light year in one Julian year, 365.25 days. So quite a long distance. Earth is 8 light-seconds from the Sun, the nearest star is just over 4 light years away.
How long does it take for the light generated by the star Betelgeuse to reach Earth?
The light takes about 640 years to reach Earth, as Betelgeuse (a red supergiant star) is about 640 light years from Earth.
Why would it take long for alpha centauri light to reach earth?
along long long long time
Earth to Jupiter distance in time how long to travel from earth to Jupiter?
about 1.659 light years. (answered by wikianswers.com)
How long has light from other stars been traveling toward earth?
Well it depends on what you mean. The distance for how long it takes, or the time as in how long since Earth was made. Earth as you know has been here a long long time. Stars light has been shinning towards Earth eversince it was made. To see how long it takes for a stars light to reach Earth depends on how distant and huge the star is.
Why do you see a star how it was?
You see a star as what it used to look like because the light from the stars takes so long to get to Earth. While the light it making its way to Earth the stars are burning out, some of the stars we can see may have been burnt out for millions of years now!
How long does it take stars light to get to us?
In our Solar System, we see light from our sun reflected off the planets. In more distant galaxies, light from many millions of stars takes a long time to reach the Earth. It takes light 4 years to reach the Earth from Sirius, a near neighbouring star. Using the Hubble telescope, we can see the light from the Eagle Nebula, which takes 7,000 years to reach the Earth.
How long does it take light to get to earth?
The light takes 8.19 mins (8 mins and 19 secs) to travel from our Sun to the Earth. Light from the stars can take years or billions of years depending on their position in the universe.
How long does it take for light from big dipper stars to reach earth?
That's good question of which I do not know the answer to. Go ask a scientist.
What measurement do scientists use for the distance between stars and Earth?
scientists use light-years to measure long distances in space. a light year, (abrviated ly) is the distance light can travel.
How long does it take for light from other stars hits the earth?
From Toliman, it takes a little over 4 years. Other stars are farther away, so it takes still longer.
Are some stars about as small as earth is?
Yes, there are some stars as small as earth. It depends, however, on where the stars are located and how long they have been burnt out.
How long does it take light to get to earth from most individual stars you see at night?
that question is impossible to answer without a specific star because they are all in completely different places. Most of the stars you can see as individual stars are less than a couple of thousand light years away. The nearest are just 4 light years away.
How long do the stars twinkle?
Stars will appear to twinkle for as long as Earth has an atmosphere, because it's the atmosphere that causes the effect. From space, they're a steady light. This is why we have the Hubble telescope in orbit. Less atmospheric inteference = more accurate images. The stars themselves will stop emitting light when they run out of fuel to burn. That will in most cases be several billion years.
How long does the star takes to reach earth?
Stars don't travel to earth. But the light and other radiation that they emit spreads out in every direction from the star, and some of it eventually hits the earth. Starting out from the star, it takes the light 1 year to reach the earth for every 5,878,700,000,000 miles it has to cover to get here.
How long does it take for light from stars to hi the earth?
The answer is different for every star, because every star is a different distance from the earth. Here are a few: -- From the Sun . . . 8minutes 20seconds -- From the nearest star outside the solar system . . . 4years 2months -- From the North Star . . . 430years -- From Sirius (brightest star in the sky except for the Sun) . . . 8years 7months
