A light-year was a unit of measurement used to measure interstellar distance. It was quantified as the distance that light travelled in a vacuum over the course of an Earth year. Distance could be further measured in light-centuries. (TV: The Ribos Operation)
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| - A light-year was a unit of measurement used to measure interstellar distance. It was quantified as the distance that light travelled in a vacuum over the course of an Earth year. Distance could be further measured in light-centuries. (TV: The Ribos Operation)
- A light year is an astronomic unit length created so that scientists could express distances between stars and galaxies using less than twenty-five zeros. A light year is equal to the distance light covers over a year, for which the technical term is "really fucking far."
- A light-year is a standard unit of distance measurement on Earth, defined as "the distance traveled by light in the time it takes the Earth to orbit the Sun once (one Earth-year)". This definition is now deprecated on Tetro because of the known inconstancy of the speed of light. However, it is still used on Earth as the primary measure of astronomical distances due to the fact that the Grand Theory of Relativity has not been discovered by Earth's physicists.
- The light-year (also spelled "light year") was a unit of distance used in astronomy.
- A light-year is a unit of distance measurement based on the travel of light energy, undisturbed in a vacuum, over the course of one Earth year.
- A light-year is a unit of length defined by the distance that light travels through the vacuum in an entire Julian year (365.25 days of 86,400 seconds each; or 31,557,600 seconds), being exactly equivalent to 9,460,730,472,580,800 meters or about 9.5 trillion kilometers. The abbreviation of a light-year is ly.
- A light-year (ly) is a unit of lenght, corresponding to the distance travelled by light in vacuum in one Julian year. A light year is equal to:
* 9,460,730,472,580.8 km (about 9.461 Pm)
* about 5,879,000,000,000 statute miles
* about 63,240 AU
* about 0.3066 parsecs
- A light-year, also light year or lightyear (symbol: ly) is a unit of length, equal to just under 10 trillion kilometers (10×1015 meters, 10 petameters or about 6 trillion miles). As defined by the International Astronomical Union (IAU), a light-year is the distance that light travels in a vacuum in one Julian year.
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| - A light-year, also light year or lightyear (symbol: ly) is a unit of length, equal to just under 10 trillion kilometers (10×1015 meters, 10 petameters or about 6 trillion miles). As defined by the International Astronomical Union (IAU), a light-year is the distance that light travels in a vacuum in one Julian year. The light-year is often used to measure 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. The parsec is defined as the distance at which an object will appear to move one arcsecond of parallax when the object moves one astronomical unit perpendicular to the line of sight to the observer, and is equal to approximately 3.26 light-years.
- A light-year was a unit of measurement used to measure interstellar distance. It was quantified as the distance that light travelled in a vacuum over the course of an Earth year. Distance could be further measured in light-centuries. (TV: The Ribos Operation)
- A light year is an astronomic unit length created so that scientists could express distances between stars and galaxies using less than twenty-five zeros. A light year is equal to the distance light covers over a year, for which the technical term is "really fucking far."
- A light-year is a standard unit of distance measurement on Earth, defined as "the distance traveled by light in the time it takes the Earth to orbit the Sun once (one Earth-year)". This definition is now deprecated on Tetro because of the known inconstancy of the speed of light. However, it is still used on Earth as the primary measure of astronomical distances due to the fact that the Grand Theory of Relativity has not been discovered by Earth's physicists.
- The light-year (also spelled "light year") was a unit of distance used in astronomy.
- A light-year is a unit of distance measurement based on the travel of light energy, undisturbed in a vacuum, over the course of one Earth year.
- A light-year is a unit of length defined by the distance that light travels through the vacuum in an entire Julian year (365.25 days of 86,400 seconds each; or 31,557,600 seconds), being exactly equivalent to 9,460,730,472,580,800 meters or about 9.5 trillion kilometers. The abbreviation of a light-year is ly.
- A light-year (ly) is a unit of lenght, corresponding to the distance travelled by light in vacuum in one Julian year. A light year is equal to:
* 9,460,730,472,580.8 km (about 9.461 Pm)
* about 5,879,000,000,000 statute miles
* about 63,240 AU
* about 0.3066 parsecs
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