How far away is 1 lightyear in miles?

How far away is 1 lightyear in miles?

Light-year is the distance light travels in one year. Light zips through interstellar space at 186,000 miles (300,000 kilometers) per second and 5.88 trillion miles (9.46 trillion kilometers) per year. SInce light-year is the distance travelled by the light in one year while travelling with the speed of light i.e. 3×108m/s 3 × 10 8 m / s . It would take 500 years to travel 500 light-year distance at the speed of light. Light from a stationary source travels at 300,000 km/sec (186,000 miles/sec). Math is simple: 50 light years divided by 0.1 makes a big number of 500 years. It’s actually more like twice that since it’s going to take a while to accelerate at both ends (slowing down is still accelerating, just negative). How about a more realistic but still extreme speed of 0.001C. That’s almost a million MPH. We can see objects up to 46.1 billion light-years away precisely because of the expanding universe. No matter how much time passes, there will forever be limits on the objects we can observe and the objects that we can potentially reach.

What is 1 light-year in human years?

SInce light-year is the distance travelled by the light in one year while travelling with the speed of light i.e. 3×108m/s 3 × 10 8 m / s . It would take 500 years to travel 500 light-year distance at the speed of light. A light-year is the distance a beam of light travels in a single Earth year, which equates to approximately 6 trillion miles (9.7 trillion kilometers). A light year is the distance light travels in one year (365 days). It often gets misused as a unit of time, likely because ‘year’ is right there in the name. It will always take light 1 year to travel a distance of 1 light year.

How far is 500 million light-years?

Therefore there are 2939312686591800000000 miles in 500 million light years. If we can write in another way the answer will be, There is 2939×1021 a mile in 500 million light years. A light-year is the distance light travels in one Earth year. One light-year is about 6 trillion miles (9 trillion km). Our galaxy probably contains 100 to 400 billion stars, and is about 100,000 light-years across. When we take all of the available data together, we arrive at a unique value for everything together, including the distance to the observable cosmic horizon: 46.1 billion light-years. The observable Universe might be 46 billion light years in all directions from our point of view,… We will never see the light from objects that are currently more than 15 billion light years away, because the universe is still expanding. We are losing 20,000 stars every second to an area that will forever remain beyond our future view.

How big is the Milky Way?

How far is 39 light-years?

TRAPPIST-1 is 39 light-years away from Earth, or about 229 trillion miles (369 trillion kilometers). It would take 39 years to get to its current location traveling at the speed of light. But no spacecraft ever built can travel anywhere near that fast. This duration is a bit of a problem, as it makes space exploration a painstakingly slow process. Even if we hopped aboard the space shuttle discovery, which can travel 5 miles a second, it would take us about 37,200 years to go one light-year. That depends on how fast you’re traveling. Thanks to Einstein, we know that the faster you go, the slower time passes–so a very fast spaceship is a time machine to the future. Five years on a ship traveling at 99 percent the speed of light (2.5 years out and 2.5 years back) corresponds to roughly 36 years on Earth. Astronomers use another distance unit, the parsec, which represents 3.26 light years or about 20 trillion miles. Some galaxies will have fallen over the cosmic horizon, where no amount of time would ever let you reach them. If you wanted to travel 100 trillion light years away, you could make the journey in 62 years.