What does light-year mean?
Definitions for light-year
light-year
This dictionary definitions page includes all the possible meanings, example usage and translations of the word light-year.
Princeton's WordNet
light year, light-yearnoun
the distance that light travels in a vacuum in 1 year; 5.88 trillion miles or 9.46 trillion kilometers
Wiktionary
light-yearnoun
An alternative spelling of light year.
Wikipedia
Light-year
A light-year, alternatively spelled light year, is a large unit of length used to express astronomical distances and is equivalent to about 9.46 trillion kilometers (9.46×1012 km), or 5.88 trillion miles (5.88×1012 mi). As defined by the International Astronomical Union (IAU), a light-year is the distance that light travels in a vacuum in one Julian year (365.25 days). Because it includes the time-measurement word "year", the term light-year is sometimes misinterpreted as a unit of time.The light-year is most often used when expressing distances to stars and other distances on a galactic scale, especially in non-specialist contexts and popular science publications. The unit most commonly used in professional astronomy is the parsec (symbol: pc, about 3.26 light-years) which derives from astrometry; it is the distance at which one astronomical unit subtends an angle of one second of arc.
ChatGPT
light-year
A light-year is a unit of astronomical distance equivalent to the distance that light travels in one year, which is approximately 5.88 trillion miles or 9.46 trillion kilometers.
Wikidata
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.
Matched Categories
Numerology
Chaldean Numerology
The numerical value of light-year in Chaldean Numerology is: 7
Pythagorean Numerology
The numerical value of light-year in Pythagorean Numerology is: 6
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"light-year." Definitions.net. STANDS4 LLC, 2024. Web. 24 Apr. 2024. <https://www.definitions.net/definition/light-year>.
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