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One Lightyear = How Many Earth Years?

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anna arm Profile
anna arm answered

Nobody answered right because noboby understood the question right.  When we look on the night sky with a telescope we see into the past.  If the light takes 1 light year to arrive from point A to Earth, how many earth years have passed since the light begun to travell from point A to Earth?

Taylor Brookes Profile
Taylor Brookes answered

A light year is a measure of distance. A year is a measure of time. Asking what a light year is in years is like asking what a metre is in seconds.

Anonymous Profile
Anonymous answered
A light year is a unit of DISTANCE, not a unit of time. 1 light year = the distance light travels in one year is close to 6 trillion MILES (not 6 trillion years).
Anonymous Profile
Anonymous answered
A light year is the distance light travels in one year.
Light travels at a velocity of approximately 300,000 kilometers/sec.
There are 60*60*24*365=31,536,000.00 seconds/yr.
So, a light year is approximately 300,000*31,536,000=9,460,528,400,000 kilometers.
The distance to the nearest star (outside of our solar system) is about 4.24 light years.
Anonymous Profile
Anonymous answered
1 year
Josh H Profile
Josh H answered
Earth Years measure time. Light years measure distance. They cannot be compared like that since they measure two completely different things.
Anonymous Profile
Anonymous answered
A light year is 5,878,630,000,000 miles (about 6 trillion miles) just figure out how fast you are going to travel and you can figure out how long it will take you... I would recommend finding a warm hole to speed things up a bit!
Anonymous Profile
Anonymous answered
1 light year is how many times 60 battery operated monkeys can go round the earth's
circumference in 1 year; from this distance is calculated as a relative parameter.
An earth year is a totally different unit of measurement, as correctly pointed out previously.
Brian  Osuna Profile
Brian Osuna answered
1 light year equals 10 trillion kilometersand 1 light year isn't years its distance not days or years on earth so when they say it takes 10 light years to get there they mean it takes 100 trillion kilometers thanks for asking
uyen Tran Profile
uyen Tran answered
1 lightyear = the distance light travels in one year is close to 6 trillion miles, not years in earth
Anonymous Profile
Anonymous answered
A light year is not measured in time it is measured in distance. One light year equals 5.9 quadrillion miles.
Jim Kirk Profile
Jim Kirk answered
Light year is used for measuring distance but Earth year is unit of time. Relating them will be like adding monkeys to donkeys.

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