What does light-year mean?

Definitions for light-year

Here are all the possible meanings and translations of the word light-year.


  1. light-year(Noun)

    An alternative spelling of light year.


  1. Light-year

    A light-year, also light year or lightyear, is an astronomical unit of length equal to just under 10 trillion kilometres. As defined by the International Astronomical Union, a light-year is the distance that light travels in a vacuum in one Julian year. The light-year is mostly used to express distances to stars and other distances on a galactic scale, especially in non-specialist and popular science publications. The preferred unit in astrometry is the parsec, because it can be more easily derived from, and compared with, observational data. Note that the light-year is a measure of distance. It is not a measure of time, for which it is sometimes mistaken.


  1. Chaldean Numerology

    The numerical value of light-year in Chaldean Numerology is: 7

  2. Pythagorean Numerology

    The numerical value of light-year in Pythagorean Numerology is: 6

Images & Illustrations of light-year

  1. light-year


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"light-year." Definitions.net. STANDS4 LLC, 2018. Web. 20 Apr. 2018. <https://www.definitions.net/definition/light-year>.

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