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It means that the distance to the star is the distance that light travels in 400 years.
Considering that light covers about 186,000 miles in one second, a light year is a
pretty fur piece, and 400 of them is also quite a distance.
Of course, that also means that when you look at the star in the night sky, you see it
as it looked 400 years ago. And if it exploded tonight, nobody on earth will know that
until 400 years from tonight.
What else can I help you with?
What star is 4.5 light years away?
Probably you mean Alpha Centauri. That star is about 4.4 light years away.
How far away is barnards star?
Barnard's Star is approximately 6 light years away.
What is the distance in light years to a star located 100 light years away from Earth?
The distance to a star located 100 light years away from Earth is 100 light years.
The nearest star is about blank light years away?
The nearest Star is the Sun which is 93 million miles away from the Earth. Alpha Centauri A then follows at 4.3-4.4 light years away from the Earth.
What star is 8.6 light years away?
Sirius is about 8.6 light years away from us.
Which planet is approximately 4 lights away from the earth?
if by lights you mean light years, no planet in our solar system is that far away, however, the closest star, aside from our sun, is about 4.2 light-years away Proxima Centauri.
How far is our closest star?
The nearest star to our sun, Proxima Centauri - is about five light years away.
How far away is the bessel's star in light years?
Bessel's Star - 61 Cygni is 11.41 ± 0.02 light years away form us.
When you observe a star that is 10 light years away you are seeing that star?
Yes, you are.
If a star is 93 light years away from earth what does this mean?
Light takes 93 years to travel from that star to Earth. That means it's a very long way away, since light travels at 186,000 miles per second (300,000 km per second).
What is the brightest star a sun star or night star?
Our sun is brighter because it is only 0.000 000 016 light years away(149,320,000km.) The brightest star in the night is Sirius. It is 8.8 light years away. So a sun star is a brighter star
How far is Barnard's star to the sun in light years?
Barnard's star is about 6 light years away from the sun.
