How long would it take to go 1000 light-years?

How long would it take to go 1000 light-years?

To do so, you will need a speed of almost the speed of light, so in the reference frame of Earth, you will have spent just a tad more that 1000 yr to travel 1000 ly. i.e. 1000 years, 4 hours, and 23 minutes in Earth’s reference frame. 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. 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. Re: How would you age at the speed of light The simple answer is, anything moving through space at c, equal to the speed of light in a vacuum, experiences zero time flow. If you were to travel at the speed of light, you would experience no time. 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.

What does 1000 light-years away mean?

Astronomers say they have discovered a black hole that is closest to Earth, roughly 1,000 light years from our planet. A light year is the distance light travels in a year which is 5.9 trillion miles (9.5 trillion km). Until now, the closest-known black hole was one perhaps three times further away, reports Reuters. Since light travels at about 186,300 miles per second, with 86,400 seconds per day and about 365 days per year, that works out at about: 186300×86400×365≈5,875,000,000,000 miles. 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. 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,… 1 Light Year in Days As defined by the International Astronomical units (IAU), A light year is the distance traveled by light in a vacuum in one Julian year is equal to 365.25 days. Therefore, one light – year = 365.25 days.

What is 1 light-years away?

A light-year is the distance light travels in one Earth year. One light-year is about 6 trillion miles (9 trillion km). Even traveling at the speed of light, it would take nearly a hundred thousand years! 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. Answer and Explanation: Because the universe is estimated to be less than 14 billion years old, conventional wisdom would indicate that we can’t see a galaxy 15 billion light-years away because, if anything exists 15 billion light-years away at all, its light hasn’t had enough time to reach us.

Is the universe 7 trillion light years?

They found that the universe is at least 250 times larger than the observable universe, or at least 7 trillion light-years across. That’s big, but actually more tightly constrained that many other models, according to 2011 MIT Technology Review (opens in new tab) report. This tiny patch of sky was full of galaxies, almost 10,000, of all different sizes and shapes. By multiplying this number by the number of times this tiny patch of sky would fit into the entire sky, astronomers came up with an estimate of between about 100 and 200 billion galaxies. Our galaxy probably contains 100 to 400 billion stars, and is about 100,000 light-years across. The trite answer is that both space and time were created at the big bang about 14 billion years ago, so there is nothing beyond the universe. However, much of the universe exists beyond the observable universe, which is maybe about 90 billion light years across. Earlier this year, astronomers found an absolute monster of a galaxy. Lurking some 3 billion light-years away, Alcyoneus is a giant radio galaxy reaching 5 megaparsecs into space. That’s 16.3 million light-years long, and it constitutes the largest known structure of galactic origin.