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Contents
How far away is 1 Light minute?
Unit | Definition | Equivalent distance in |
---|---|---|
km | ||
light-minute | 60 light-seconds | 1.799×107 km |
light-hour | 60 light-minutes = 3600 light-seconds | 1.079×109 km |
light-day | 24 light-hours = 86400 light-seconds | 2.590×1010 km |
How fast is light minute?
186,000 miles * 60 seconds = 11,160,000 miles/minute
So light can travel 18,000,000 kilometers in one minute! Let’s see how many light minutes Earth is from the Sun.
How many minutes is a light-hour?
A light-hour is a non-SI astronomical unit of length equal to 60 light-minutes or 3600 light-seconds or just over 1 billion kilometers or just under 0.7 billion miles.
How many Earth years is a Lightyear?
Coe et al. For most space objects, we use light-years to describe their distance. A light-year is the distance light travels in one Earth year.
How long is a light day in time?
Each hour has 3600 seconds in it (60 minutes, each of 60 seconds, 60 * 60 = 3600). So, that means light travels 3600 * 24 * 300 000 km in one 24-hour day, or about 25920000000 km.
Can humans travel a light-year?
So will it ever be possible for us to travel at light speed? Based on our current understanding of physics and the limits of the natural world, the answer, sadly, is no.
Is a light-year 365 days?
A light year is the distance light travels in one year (365 days). It often gets misused as a unit of time, likely because ‘year’ is right there in the name. It will always take light 1 year to travel a distance of 1 light year.
What distance is 1 light-year closest to?
A light-year is the distance a beam of light travels in a single Earth year, which equates to approximately 6 trillion miles (9.7 trillion kilometers).
Is time Travelling possible?
Yes, time travel is indeed a real thing. But it’s not quite what you’ve probably seen in the movies. Under certain conditions, it is possible to experience time passing at a different rate than 1 second per second. And there are important reasons why we need to understand this real-world form of time travel.
What’s the speed of dark?
Darkness travels at the speed of light. More accurately, darkness does not exist by itself as a unique physical entity, but is simply the absence of light.
Why time Slows Down in space?
This form of time dilation is also real, and it’s because in Einstein’s theory of general relativity, gravity can bend spacetime, and therefore time itself. The closer the clock is to the source of gravitation, the slower time passes; the farther away the clock is from gravity, the faster time will pass.
What do you mean by light minute?
Definitions of light minute. the distance light travels in a vacuum in one minute; approximately 18 million kilometers. type of: astronomy unit. a linear unit used for astronomical distances.
What’s a light hour?
Definition of light-hour
: a unit of length in astronomy that is equal to the distance that light travels in one hour in a vacuum or about 1.1 billion kilometers.
What distance is 1 light-year closest to?
A light-year is the distance a beam of light travels in a single Earth year, which equates to approximately 6 trillion miles (9.7 trillion kilometers).
Is Sun 8.3 light minutes away from Earth?
The distance from the Sun to the Earth is called an Astronomical Unit (A.U.). This distance is about 93 million miles or 152 million kilometers. It also equals 8.3 light minutes (the distance light travels in 8 min 20 seconds).
How far does light travel per second?
Stationary Light
Light from a stationary source travels at 300,000 km/sec (186,000 miles/sec).
How long is a light millisecond?
The light-millisecond is a unit of length, equal to 10−3 light-second (299,792.458 m = 186.282397 mi).
Light-second – Wikipedia
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How Many Years are in a Light Year? | The Speed of Light – YouTube
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Light Years | Texas Gateway
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Convert light-hour to light-minute • Length and Distance Converter • Common Unit Converters • Compact Calculator • Online Unit Converters
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Convert light-hour to light-minute
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Measuring Length and Distance
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Convert Length, Light minute
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Error 403 (Forbidden)
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Light-minute | Units of Measurement Wiki | Fandom
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- Most searched keywords: Whether you are looking for Light-minute | Units of Measurement Wiki | Fandom A light-minute is a unit of length useful in astronomy, telecommunications, and relativistic physics. It is defined as the distance that light travels in … A light-minute 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 minute (or 60 light-seconds), and is equal to 1.798754748×1010 m. It is just over 1.118×107 miles and almost 6×1010 feet.
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Distance units based on the speed of light[]
Light-second – Wikipedia
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Light minutes Conversion Tool
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Conversion Tool
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Length Units
Angstrom [ Ã ]
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Light Minute. Conversion Chart /
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Distance and Length Converter, Astronomical Distance And Length Converter / Astronomical / Light Minute Online converter page for a specific unit. Here you can make instant conversion from this unit … … - Most searched keywords: Whether you are looking for Light Minute. Conversion Chart /
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Light-minute
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Conversion from Light year (ly) to Light minute (lm) and vice versa
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Info about Light year
Info about Light minute
Basis for conversion Light year (ly) to Light minute (lm) and vice versa
Formula for the conversion of Light year (ly) to Light minute (lm) and vice versa
Formula for the conversion of Light minute (lm) to Light year (ly)
Overview table How many Light year are how many Light minute
Overview table How many Light minute are how many Light year
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Light-second
Unit of length
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 299,792,458 metres (983,571,056 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 31,557,600 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.[1]
Use in telecommunications [ edit ]
Communications signals on Earth rarely travel at precisely the speed of light in free space.[citation needed] Distances in fractions of a light-second are useful for planning telecommunications networks.
One light-nanosecond is almost 300 millimetres (299.8 mm, 5 mm less than one foot [2] ), which limits the speed of data transfer between different parts of a large computer.
), which limits the speed of data transfer between different parts of a large computer. One light-microsecond is about 300 metres.
The mean distance, over land, between opposite sides of the Earth is 66.8 light-milliseconds.
Communications satellites are typically 1.337 light-milliseconds[ citation needed ] (low Earth orbit) to 119.4 light-milliseconds (geostationary orbit) from the surface of the Earth. Hence there will always be a delay of at least a quarter of a second in a communication via geostationary satellite (119.4 ms times 2); this delay is just perceptible in a transoceanic telephone conversation routed by satellite. The answer will also be delayed with a quarter of a second and this is clearly noticeable during interviews or discussions on TV when sent over satellite.
Use in astronomy [ edit ]
Voyager 1 and Pioneer 10 (red and green arrows respectively). It is larger than the heliosphere’s The yellow shell indicating one light-day distance from the Sun compares in size with the positions ofand(red and green arrows respectively). It is larger than the heliosphere’s termination shock (blue shell) but smaller than Comet Hale-Bopp ‘s orbit (faint orange ellipse below). Click on the image for a larger view and links to other scales.
The faint yellow sphere centred on the Sun has a radius of one light-minute. For comparison, sizes of Rigel (the blue star in the top left) and Aldebaran (the red star in the top right) are shown to scale. The large yellow ellipse represents Mercury’s orbit.
The light-second is a convenient unit for measuring distances in the inner Solar System, since it corresponds very closely to the radiometric data used to determine them. (The match is not exact for an Earth-based observer because of a very small correction for the effects of relativity.) The value of the astronomical unit (roughly the distance between Earth and the Sun) in light-seconds is a fundamental measurement for the calculation of modern ephemerides (tables of planetary positions). It is usually quoted as “light-time for unit distance” in tables of astronomical constants, and its currently accepted value is 499.004786385(20) s.[3][4]
The mean diameter of Earth is about 0.0425 light-seconds.
The average distance between Earth and the Moon (the lunar distance) is about 1.282 light-seconds.
The diameter of the Sun is about 4.643 light-seconds.
The average distance between Earth and the Sun (the astronomical unit) is 499.0 light-seconds.
Multiples of the light-second can be defined, although apart from the light-year, they are more used in popular science publications than in research works. For example, a light-minute is 60 light-seconds, and the average distance between Earth and the Sun is 8.317 light-minutes.
Unit Definition Equivalent distance in Example m km miles light-second 299 792 458 m 2.998 × 105 km 1.863 × 105 mi Average distance from the Earth to the Moon is about 1.282 light-seconds light-minute 60 light-seconds 17 987 547 480 m 1.799 × 107 km 1.118 × 107 mi Average distance from the Earth to the Sun is 8.317 light-minutes light-hour 60 light-minutes
= 3600 light-seconds 1 079 252 848 800 m 1.079 × 109 km 6.706 × 108 mi Semi-major axis of Pluto’s orbit is about 5.473 light-hours light-day 24 light-hours
= 86 400 light-seconds 25 902 068 371 200 m 2.590 × 1010 km 1.609 × 1010 mi Sedna is currently 0.52 light-days from the Sun; on an orbit that varies from a perihelion of 0.44 light-days to an aphelion of 5.41 light-days light-week 7 light-days
= 604 800 light-seconds 181 314 478 598 400 m 1.813 × 1011 km 1.127 × 1011 mi The Oort cloud is thought to extend between 41 and 82 light-weeks out from the Sun light-month 30 light-days
= 2.592 × 10+6 light-seconds 7.771 × 10+14 m 7.771 × 1011 km 4.828 × 1011 mi light-year 365.25 light-days
= 31 557 600 light-seconds 9 460 730 472 580 800 m 9.461 × 1012 km 5.879 × 1012 mi Proxima Centauri is the nearest star to the Sun, about 4.24 light years away
See also [ edit ]
Convert light-hour to light-minute • Length and Distance Converter • Common Unit Converters • Compact Calculator • Online Unit Converters
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1 light-hour = 59.9999999999999 light-minute
meter exameter petameter terameter gigameter megameter kilometer hectometer decameter decimeter centimeter millimeter micrometer micron nanometer picometer femtometer attometer megaparsec kiloparsec parsec light-year astronomical unit league nautical league (UK) nautical league (international) league (statute) mile nautical mile (UK) nautical mile (international) mile (statute) mile (US survey) mile (Roman) kiloyard furlong furlong (US survey) chain chain (US survey) rope rod rod (US survey) perch pole fathom fathom (US survey) ell yard foot foot (US survey) link link (US survey) cubit (UK) hand span (cloth) finger (cloth) nail (cloth) inch inch (US survey) barleycorn mil microinch angstrom a.u. of length X unit fermi arpent pica point twip aln famn caliber centiinch ken Russian arshin Roman actus vara de tarea vara conuquera vara castellana cubit (Greek) long reed reed long cubit handbreadth fingerbreadth Planck length Electron radius (classical) Bohr radius Earth’s equatorial radius Earth’s polar radius Earth’s distance from the Sun Sun’s radius light-nanosecond light-microsecond light-millisecond light-second light-hour light-day light-week gigalight-year lunar distance (from the Earth to the Moon) cable length (international) cable length (Imperial) cable length (US Customary) nautical mile (US Customary) light-minute rack unit horizontal pitch cicero pixel liniya (line) diuym (inch) vershok pyad fut (foot) sazhen kosaya sazhen versta mezhevaya versta
meter exameter petameter terameter gigameter megameter kilometer hectometer decameter decimeter centimeter millimeter micrometer micron nanometer picometer femtometer attometer megaparsec kiloparsec parsec light-year astronomical unit league nautical league (UK) nautical league (international) league (statute) mile nautical mile (UK) nautical mile (international) mile (statute) mile (US survey) mile (Roman) kiloyard furlong furlong (US survey) chain chain (US survey) rope rod rod (US survey) perch pole fathom fathom (US survey) ell yard foot foot (US survey) link link (US survey) cubit (UK) hand span (cloth) finger (cloth) nail (cloth) inch inch (US survey) barleycorn mil microinch angstrom a.u. of length X unit fermi arpent pica point twip aln famn caliber centiinch ken Russian arshin Roman actus vara de tarea vara conuquera vara castellana cubit (Greek) long reed reed long cubit handbreadth fingerbreadth Planck length Electron radius (classical) Bohr radius Earth’s equatorial radius Earth’s polar radius Earth’s distance from the Sun Sun’s radius light-nanosecond light-microsecond light-millisecond light-second light-hour light-day light-week gigalight-year lunar distance (from the Earth to the Moon) cable length (international) cable length (Imperial) cable length (US Customary) nautical mile (US Customary) light-minute rack unit horizontal pitch cicero pixel liniya (line) diuym (inch) vershok pyad fut (foot) sazhen kosaya sazhen versta mezhevaya versta
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Celebrity Reflection cruise ship in the Port of Miami. It’s length is 1047 ft or 319 m
The Golden Gate Bridge spanning the Golden Gate, the strait that provides an opening between the San Francisco Bay and the Pacific Ocean. Its total length is about 1.7 mi or 2.7 km.
Overview
Length describes the longest dimension of an object. For three-dimensional objects, it is usually measured horizontally.
Distance, on the other hand, refers to the measure of how far the objects are from each other.
Measuring Length and Distance
Units
The basic unit for length and distance in the International System of Units (SI) is a meter. Derivatives of the meter, such as kilometers and centimeters, are also used in the metric system. Units such as inch, foot, and mile are used where the metric system is not accepted, such as in the USA and the UK.
Distances in Science
Sciences like Biology and Physics work with very small distances, therefore additional units are used. A micrometer is 1×10⁻⁶ of a meter. It is commonly used in biology to measure microorganisms, as well as for measuring infrared radiation wavelengths. It is also known as micron and is represented by the sign µ. Nanometer (1×10⁻⁹ of a meter), picometer (1×10⁻¹² of a meter), femtometer (1×10⁻¹⁵ of a meter), and attometer (1×10⁻¹⁸ of a meter) are also used.
Sailing under the Golden Gate Bridge. The clearance below the bridge is 220 ft or 67.1 m at tide
Distances in Navigation
Navigation uses nautical miles. One nautical mile equals 1852 meters. Historically it was defined as one minute of arc along the meridian or 1/(60×180) of a meridian. This allowed for simplified calculations of latitude because every 60 nautical miles were one degree of latitude. When calculating speed using nautical miles, often knots are used as units. One knot equals the speed of one nautical mile per hour.
Distances in Astronomy
In astronomy, because of the great distances under consideration, additional units are used for convenience.
An astronomical unit (AU, au, a.u., or ua) equals 149,597,870,700 meters. There is a constant, the unit distance, of the value of one astronomical unit. It is denoted as A. Earth is about 1.00 AU from the Sun.
A light-year (ly) equals 10,000,000,000,000 km, or 10¹³ km. It represents the distance that light travels in one Julian year in a vacuum. It is used more often in popular culture than in astronomical calculations.
Parsec explanation
A parsec (pc) is about 30,856,775,814,671,900 meters, or approximately 3.09 × 10¹³ km. One parsec represents the distance from the Sun to an astronomical object, such as a planet, a star, a moon, or an asteroid, which has a parallax angle equal to an arcsecond. One arcsecond is equal to 1/3600 of a degree, or about 4.8481368 µrad in radians. To calculate a parsec, the effect of parallax can be used, which is an apparent displacement of an object when it is viewed from two different points of view. Astronomers draw an imaginary line from the Earth (point E1) to the distant star or an astronomical object (point A2), line E1A2. Half a year later, when the Sun is on the opposite side of the Earth, they draw another imaginary line from the current position of the Earth (point E2) to the new apparent position of the distant star (point A1), line E2A1. They then also connect the two positions of the Earth, making line E1E2. The sun is in the middle of this line, at a point S. The distance of lines E1S and E2S each equal 1 AU. When one draws a line perpendicular to E1E2, going through S, it will also pass through the intersection of E1A2 and E2A1, point I. The distance from the sun to this point — that is, the line SI, is equal to 1 pc, if the angle formed by the lines A1I and A2I is two arcseconds. Please see the diagram below for better visualization. There, angle P is one arcsecond.
On this picture:
A1, A2: apparent positions of a distant star
E1, E2: positions of the Earth
S: the position of the Sun
I: the intersection point
IS = 1 parsec
∠P or ∠XIA2: parallax angle
∠P = 1 arcsecond
Other Units
A league is an obsolete unit in most countries. It is still in use in some areas, such as Yucatan and rural Mexico. It is defined as a distance that a person can walk in one hour. A nautical league is defined as three nautical miles, which is about 5.6 km. A league was widely used in literature, such as in “Twenty Thousand Leagues Under the Sea” by Jules Verne.
A cubit is a length from the tip of the middle finger to the elbow. This unit was widely used from the Antiquity through to Early Modern Times.
A yard is used in the imperial system and it equals three feet or 0.9144 meters. In some countries like Canada, it is only used when measuring fabric, as well as sports grounds, such as swimming pools and cricket pitches.
Defining the Meter
The meter was originally defined to be 1/10,000,000 of the distance between the North Pole and the Equator. It was later redefined as a length of a prototype meter bar, created from platinum and iridium alloy. It was further redefined as equal to 1,650,763.73 wavelengths of the orange-red emission line in the electromagnetic spectrum of the krypton-86 atom in a vacuum. Later it was redefined once more using the speed of light. This definition is used today and states that one meter is equal to the length of the path traveled by light in a vacuum in 1/299,792,458 of a second.
Calculations
In geometry, the distance between two points A and B with the coordinates A(x₁, y₁) and B(x₂, y₂) is calculated using the formula:
In physics, distance is a scalar value and never negative. It can be measured by an odometer. Distance is measured along the object’s travel trajectory. It must not be confused with displacement, which is a vector that measures a straight line that is the shortest distance between the departure and the arrival points of an object.
Circular distance is a distance travelled by a circular object, such as a wheel. It can be calculated using frequency, or the radius of the wheel.
References
This article was written by Kateryna Yuri
Unit Converter articles were edited and illustrated by Anatoly Zolotkov
Light-second
Unit of length
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 299,792,458 metres (983,571,056 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 31,557,600 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.[1]
Use in telecommunications [ edit ]
Communications signals on Earth rarely travel at precisely the speed of light in free space.[citation needed] Distances in fractions of a light-second are useful for planning telecommunications networks.
One light-nanosecond is almost 300 millimetres (299.8 mm, 5 mm less than one foot [2] ), which limits the speed of data transfer between different parts of a large computer.
), which limits the speed of data transfer between different parts of a large computer. One light-microsecond is about 300 metres.
The mean distance, over land, between opposite sides of the Earth is 66.8 light-milliseconds.
Communications satellites are typically 1.337 light-milliseconds[ citation needed ] (low Earth orbit) to 119.4 light-milliseconds (geostationary orbit) from the surface of the Earth. Hence there will always be a delay of at least a quarter of a second in a communication via geostationary satellite (119.4 ms times 2); this delay is just perceptible in a transoceanic telephone conversation routed by satellite. The answer will also be delayed with a quarter of a second and this is clearly noticeable during interviews or discussions on TV when sent over satellite.
Use in astronomy [ edit ]
Voyager 1 and Pioneer 10 (red and green arrows respectively). It is larger than the heliosphere’s The yellow shell indicating one light-day distance from the Sun compares in size with the positions ofand(red and green arrows respectively). It is larger than the heliosphere’s termination shock (blue shell) but smaller than Comet Hale-Bopp ‘s orbit (faint orange ellipse below). Click on the image for a larger view and links to other scales.
The faint yellow sphere centred on the Sun has a radius of one light-minute. For comparison, sizes of Rigel (the blue star in the top left) and Aldebaran (the red star in the top right) are shown to scale. The large yellow ellipse represents Mercury’s orbit.
The light-second is a convenient unit for measuring distances in the inner Solar System, since it corresponds very closely to the radiometric data used to determine them. (The match is not exact for an Earth-based observer because of a very small correction for the effects of relativity.) The value of the astronomical unit (roughly the distance between Earth and the Sun) in light-seconds is a fundamental measurement for the calculation of modern ephemerides (tables of planetary positions). It is usually quoted as “light-time for unit distance” in tables of astronomical constants, and its currently accepted value is 499.004786385(20) s.[3][4]
The mean diameter of Earth is about 0.0425 light-seconds.
The average distance between Earth and the Moon (the lunar distance) is about 1.282 light-seconds.
The diameter of the Sun is about 4.643 light-seconds.
The average distance between Earth and the Sun (the astronomical unit) is 499.0 light-seconds.
Multiples of the light-second can be defined, although apart from the light-year, they are more used in popular science publications than in research works. For example, a light-minute is 60 light-seconds, and the average distance between Earth and the Sun is 8.317 light-minutes.
Unit Definition Equivalent distance in Example m km miles light-second 299 792 458 m 2.998 × 105 km 1.863 × 105 mi Average distance from the Earth to the Moon is about 1.282 light-seconds light-minute 60 light-seconds 17 987 547 480 m 1.799 × 107 km 1.118 × 107 mi Average distance from the Earth to the Sun is 8.317 light-minutes light-hour 60 light-minutes
= 3600 light-seconds 1 079 252 848 800 m 1.079 × 109 km 6.706 × 108 mi Semi-major axis of Pluto’s orbit is about 5.473 light-hours light-day 24 light-hours
= 86 400 light-seconds 25 902 068 371 200 m 2.590 × 1010 km 1.609 × 1010 mi Sedna is currently 0.52 light-days from the Sun; on an orbit that varies from a perihelion of 0.44 light-days to an aphelion of 5.41 light-days light-week 7 light-days
= 604 800 light-seconds 181 314 478 598 400 m 1.813 × 1011 km 1.127 × 1011 mi The Oort cloud is thought to extend between 41 and 82 light-weeks out from the Sun light-month 30 light-days
= 2.592 × 10+6 light-seconds 7.771 × 10+14 m 7.771 × 1011 km 4.828 × 1011 mi light-year 365.25 light-days
= 31 557 600 light-seconds 9 460 730 472 580 800 m 9.461 × 1012 km 5.879 × 1012 mi Proxima Centauri is the nearest star to the Sun, about 4.24 light years away
See also [ edit ]
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