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  1. A light-year is a unit of distance. It is the distance that light can travel in one year. Light moves at a velocity of about 300,000 kilometers (km) each second. So in one year, it can travel about 10 trillion km. More p recisely, one light-year is equal to 9,500,000,000,000 kilometers.

  2. May 19, 2017 · The value of light years in terms of meter is based upon the conversion factor as both are the measure of distance being the fundamental quantity. There are 7 fundamental quantities of which length is the fundamental quantity and measure of length is known as distance.

  3. The diameter of the Milky Way is about 100,000 light-years and the Sun is located about 28,000 light-years from the Galactic Center. You can see a drawing of the Milky Way below which shows what our Galaxy would look like "face-on" and the direction in which it would spin as viewed from that vantage point.

  4. Oct 2, 2019 · The star is 3.519 lightyears away Given A star is 33.11 trillion kilometers away To Find Distance away in lightyears Solution 1 trillion = 1, 000, 000, 000, 000 Therefore 33.11 trillion km = 33, 110, 000, 000, 000 = 3311 X 10¹⁰ Now, 1 light year is the distance traveled by light in one year Speed of light = 300,000 km/s First, we need to find the number of seconds in a year. One year has 365 days which have 24 hours and every hour has 3600 sec Therefore, the number of seconds in a year ...

  5. First convert light years into kilometers. 5.7 x 10 15 km Traveling at 1000 km/hr. by jet, how long would it take to reach Betelgeuse? 5,700,000,000,000 hrs. How many years is that? 650,684,931.5 years Did you know that by the time you got there, Betelgeuse would no longer be the red giant we know today?

  6. Jul 21, 2023 · How old is the universe? Answer: UPDATE (July 21, 2023)! Measurements made by NASA's WMAP spacecraft have shown that the universe is 13.77 billion years plus or minus 0.059. The age was further refined by ESA's Planck spacecraft to be 13.8 billion years old. They were able to do this by making detailed observations of the fluctuations in the cosmic microwave background and using that information in Einstein's Theory of General Relativity to 'run the clock backwards to time equal zero'.

  7. Redshift and Hubble's Law. For very far objects (beyond about 1 billion light-years) none of the above methods work. Scientists must move from direct observation to using observations in conjunction with a theory. The theory used to determine these very great distances in the universe is based on the discovery by Edwin Hubble that the universe ...

  8. starchild.gsfc.nasa.gov › docs › StarChildParallax - NASA

    Parallax. Astronomers derive distances to the nearest stars (closer than about 100 light-years) by a method called stellar parallax. This method that relies on no assumptions other than the geometry of the Earth's orbit around the Sun. You are probably familiar with the phenomenon known as parallax.

  9. Jun 25, 2019 · A satellite can move at 17,000 miles per hour. How many hours will it take to reach a star that is three light years away? Recall that 1 light year = 9.5 ∙ - 10779299

  10. Jan 21, 2021 · I need HELP PLEASE ILL GIVE BRAINLIEST The distances in space are measured in light-years. The distance from Earth to a star is 5.9 × 1013 kilometers. What is the distance, in light-years, from Earth to the star (1 light-year = 9.46 × 1012 kilometers)?