Light travels at 186,282.397 miles per second (299,792,458 Kilometers / second).
There are 31,556,736 seconds in a year. Therefore light will travel 5,878,464,423,576.192 (6 trillion) miles per year.
So 3,000 Ly = 17,635,393,270,728,576 miles (28,381,414,355,691,264,000 kilometers)
or 17.6 quadrillion Miles (28.4 quintrillion kilometers)
It would all depend on what speed you travel at.
Forgetting acceleration and deceleration, which is important the closer you get to the speed of light.
At the speed of light ~ 300 years.
At 500,000 mph ~ 402,370 years
At 55mph - 582,991,715,702 years - about 44 times longer than the Universe has existed.
Light travels at 300,000 km per second, or 186,000 miles per second. Multiply those numbers together.
The answer is 93,000,000 miles from the Sun to the Earth. This distance is defined as one "astronomical unit", or AU.
Quite a few, too many to use as a handy measure. Just one light-year is almost six sextillion miles. (You've heard about the three-trillion-dollar budget? Figure, quadrillion, quintillion, sextillion.....)
The light from a star 5000 light-years away will reach the Earth 5000 years after the light leaves the star.
But the star itself will never reach the Earth. Stars do not, in general, collide with each other - or at least, do not do so very often.
Are you sure you can cope with the numbers?
2,939,249,910,000,000,000,000,000 miles.
That's
122,468,746,250,000,000,000 times around the Equator of Earth
or
15,802,418,870,967,741 times to the Sun and back.
or
Bill Gates average earnings per year in dollars (That's a lie - it's much more:-)
"Light year" is a distance ... it's the distance light travels in one year, or about 5,878,700,000,000 miles.
"Year" is a period of time ... it's the time elapsed while the earth makes one complete revolution
around the sun.
As you can see, these two units are completely different, although they do share the same word.
They have different physical 'dimensions', they're used to measure completely different quantities,
and neither of them can be converted to the other one.
A light-year is not a unit of time. It is a unit of distance - the distance light travels in a year, about 9.5 x 1012 km.
If the source is 300 light years away from you, then you see light that left the source 300 years ago.
It may not be there any more. You'll know in 300 years.
5000 years. By definition, a light year is the distance a beam of light can travel in one year.
160,000 million million.
Add 2009 to 5000 and you get 7009.
The answer to how many light years is M99 away from earth it is 25100 light years away!
At the speed of light 1.5 million years
8.6 light years
5000 years ago
A millennium is 1000 years, so 5000 years would be 5.
A light year is a measure of distance, not time, and so there's no relation between the two in this case. However one statement that can be said is that 50,000 light years is the distance travelled by light in 50,000 human years.
Since BFB2004 NGC 4676 833 is a spiral galaxy 5000 million light years from us, it will take 5000 million years for the message to reach its intended designation (and an additional 5000 million years for any reply from an alien civilization).
egypt, the oldest and strongest country 5000 years agao
5000 light years
5000 years
1,576,800,000,00
There are 5
There are 5000 years in 50 centuries. A century is 100 years. 50 centuries x 100 years/century = 5000
5000
Millennia is 1000 years, for mill is thousand right? 1000 years x 5 is 5000 years. What will you be doing in the next of your life 5000 years/: