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How can you see stars if they are millions of light years away?
Because 1) they are very bright, most of them are bigger than our sun 2) light travels very quicky when you look at them, you are looking at the star about hundreds of millions of years ago, as that is how long it takes for the light to get to here.
How many light years are there in stars that are in your sky?
The distance to stars is measured in light years, which is the distance light travels in one year. The stars we see in the night sky are typically several light years away, with the closest star to Earth, Proxima Centauri, about 4.24 light years away.
Why can you still see stars after they have died?
The nearest star (other than the Sun) is 4.7 light-years from Earth, meaning it takes 4.7 years for light from that star to reach us. That star could die and we would not know it for 4.7 years. Some stars are billions of light years away, it would be billions of years before we noticed that the star was no longer shining.
How many light years away is the little dipper?
i cant say because the little dipper is made op of many differt stars and alls 7 stars r different light years away. 4 example, the star kochab is 126 light years away and the star pherkad is 480 light years away.
How many stars within 50 light years from earth?
According to SIMBAD, ~970. But there's a lot of stars within 50 light years whose distances aren't known. There's quite a few stars within 50 light years. To get a good estimate, we should consider how many stars within 20 light years, and go from there. The nearest 25 light years are really well catalogued, and the current census is 200 stars. Now, through knowledge of Geometry, one can say that if you multiply the radius of a 3D shape by a number, x, the volume will increase by the x^3. Why 3? because it's a 3D shape. So we double our sphere from 25 to 50 light years. So thus the volume increases by 2^3 = 8 times! So there are 8 times as many stars within 50 light years as there are within 25 light years. 200 * 8 = 1,600 stars (estimate).
Are the stars measured in light years?
Stars are not measured in light years. The distance between them is.
How can you see stars billions of light years away?
The light from the stars travels billions of years. Most of the stars we see are already gone, but the light from them us still traveling.
Is the distance between stars and earth measured in kilometres or light-years?
Light Years.
Explain why stars distances is measured in light years?
because the stars are very far away so the astronomers use light years
How can you see stars if they are millions of light years away?
Because 1) they are very bright, most of them are bigger than our sun 2) light travels very quicky when you look at them, you are looking at the star about hundreds of millions of years ago, as that is how long it takes for the light to get to here.
How many light years are there in stars that are in your sky?
The distance to stars is measured in light years, which is the distance light travels in one year. The stars we see in the night sky are typically several light years away, with the closest star to Earth, Proxima Centauri, about 4.24 light years away.
In distance in space between stars and earth measured in kilometres or light years?
in light years
How far does the light from the stars travel to earth?
This varies widely, between about four light-years for the nearest star (after the Sun, that is), to billions of light-years for stars in the farthest observable galaxies.
How many stars in a galaxy or cloud at what per light year?
1.5 billion stars per 1000 light years.
What can the distances to nearby stars be measured by?
Light years
How far away is the stars from the sun?
The stars are upwards of 4.2 light-years from the Sun.
What are the stars the three stars on this hunters belt?
The three stars that compose the hunters belt in the constellation of Orion are: Alnitak, Alnilam and Mintaka. They are 800 light-years, 1340 light-years and 915 light-years away from us respectively (but, of course, from earths perspective they are in a neat line).
