What does light second mean?
Definitions for light second
light sec·ond
This dictionary definitions page includes all the possible meanings, example usage and translations of the word light second.
Princeton's WordNet
light secondnoun
the distance light travels in a vacuum in one second; approximately 300,000 kilometers
Wiktionary
light secondnoun
A unit of length equal to the distance light travels in one second
Wikipedia
light second
The light-second is a unit of length useful in astronomy, telecommunications and relativistic physics. It is defined as the distance that light travels in free space in one second, and is equal to exactly 299792458 metres (983571056 ft). Just as the second forms the basis for other units of time, the light-second can form the basis for other units of length, ranging from the light-nanosecond (299.8 mm or just under one international foot) to the light-minute, light-hour and light-day, which are sometimes used in popular science publications. The more commonly used light-year is also currently defined to be equal to precisely 31557600 light-seconds, since the definition of a year is based on a Julian year (not the Gregorian year) of exactly 365.25 days, each of exactly 86400 SI seconds.
ChatGPT
light second
A light second is a unit of length, defined as the distance that light travels in a vacuum in one second. It is equivalent to approximately 299,792 kilometers or 186,282 miles. It is often used in astrophysics and space exploration to describe large distances.
Matched Categories
Numerology
Chaldean Numerology
The numerical value of light second in Chaldean Numerology is: 7
Pythagorean Numerology
The numerical value of light second in Pythagorean Numerology is: 8
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"light second." Definitions.net. STANDS4 LLC, 2024. Web. 25 Apr. 2024. <https://www.definitions.net/definition/light+second>.
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