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  1. spaceplace.nasa.gov › light-year › enWhat Is a Light-Year? | NASA Space Place – NASA Science for Kids

    Hace 4 días · For most space objects, we use light-years to describe their distance. A light-year is the distance light travels in one Earth year. One light-year is about 6 trillion miles (9 trillion km). That is a 6 with 12 zeros behind it!

  2. en.wikipedia.org › wiki › Light-yearLight-year - Wikipedia

    A light-year, alternatively spelled light year (ly), is a unit of length used to express astronomical distances and is equal to exactly 9,460,730,472,580.8 km (Scientific notation: 9.4607304725808 × 10 12 km), which is approximately 5.88 trillion mi.

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  4. www.calculateme.com › astronomy › light-yearsConvert Light Years to Miles - CalculateMe.com

    How many miles are in a light year? Use this easy and mobile-friendly calculator to convert between light years and miles. Just type the number of light years into the box and hit the Calculate button.

  5. science.nasa.gov › exoplanets › what-is-a-light-yearWhat is a light-year? - NASA Science

    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. We use light-time to measure the vast distances of space.

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    • Units Of Distance In Astronomy: Light Year, Parsec And AU
    • Miles Light Unit In Year
    • Light Year Distance and Time Measurement Unit Explanation Outline ...
    • convert light years to miles | Decoratingspecial.com

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  7. earthsky.org › astronomy-essentials › how-far-is-a-light-yearHow far is a light-year? Plus, distances in space

    27 de abr. de 2023 · So, a light-year is 5.88 trillion miles (9.46 trillion km). However, stars and nebulae – not to mention distant galaxies – are vastly farther than one light-year away.

  8. earthsky.org › space › what-is-a-light-yearWhat is a light year? Find out. | Sky Archive | EarthSky

    20 de feb. de 2013 · A light-year is how astronomers measure distance in space. It’s defined by how far a beam of light travels in one year – a distance of six trillion miles.

  9. astrobackyard.com › light-yearHow Far is a Light Year? | The Fastest Thing in the Universe

    A light-year is the distance light can travel in one year. Light is the fastest thing in our Universe traveling through interstellar space at 186,000 miles/second (300,000 km/sec). In one year, light can travel 5.88 trillion miles (9.46 trillion km).