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  1. quizlet.com › 72829157 › light-year-study-guide-flash-cardslight year study guide Flashcards | Quizlet

    Study with Quizlet and memorize flashcards containing terms like how far is proxima Centuri from earth?, what does a light year measure, the Universe is made of 3 things and more.

  2. quizlet.com › 185666610 › astronomy-light-year-flash-cardsAstronomy Light Year Flashcards | Quizlet

    Click to see the original works with their full license. Study with Quizlet and memorize flashcards containing terms like Orbit, Celestial Body, Nebulae and more.

  3. quizlet.com › 519323473 › light-years-flash-cardsLight Years Flashcards | Quizlet

    Study with Quizlet and memorize flashcards containing terms like Astronomical Unit (AU), Light Year, Universe and more.

  4. quizlet.com › 73986386 › speed-of-light-light-years-and-au-flash-cardsSpeed of Light, Light Years and AU Flashcards | Quizlet

    Speed of Light, Light Years and AU. Light travels at the same speed in a vacuum. That is about 300 million (299,792,458) meters per second. That is really fast, but due to the great distance between objects in space, it still takes time.

  5. quizlet.com › explanations › questionsWhat is a light-year? | Quizlet

    Light years express the distance of celestial bodies in space, which means that the distance of a star from the Earth will be expressed in light-years and not in other units (kilometers, meters, centimeters).

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

    9 lip 2024 · A light-year is the distance light travels in one Earth year. Learn about how we use light-years to measure the distance of objects in space.

  7. physics.stackexchange.com › questions › 754584definition - What are light years? like you know how people...

    9 mar 2023 · A light year is the distance that light travels in a year. So it is a measure of distance, not time. Light travels about 300,000 kilometers in one second, or about 9.46 trillion kilometers in one year.