Light Year In Miles
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To obtain an idea of the size of a light year take the circumference of the earth 24 900 miles lay it out in a straight line multiply the length of the line by 7 5 the corresponding distance is one light second then place 31 6 million similar lines end to end.
Light year in miles. Therefore a light second is 186 000 miles 300 000 kilometers. Looking back in time. The year used by the international astronomical union is 365 25 days. The light year is a unit of length used to express astronomical distances and measures about 9 46 trillion kilometres 9 46 x 10 12 km or 5 88 trillion miles 5 88 x 10 12 mi.
How can this be. 186 000 miles second 60 seconds minute 60 minutes hour 24 hours day 365 days year 5 865 696 000 000 miles year. When we use powerful telescopes to look at distant objects in space we are actually looking back in time. Miles to light years conversion table.
1 light year is 9 460 730 472 5808 x 10 15 meters si unit. As defined by the international astronomical union iau a light year is the distance that light travels in vacuum in one julian year 365 25 days. Light is the fastest moving stuff in the universe it travels at an incredible 186 000 miles 300 000 km per second. Therefore a light year is exactly 9 460 730 472 580 8 kilometers.
If you could travel at the speed of light you would be. That is a 6 with 12 zeros behind it. A light year abbreviated ly is the distance light travels in one year. Because it includes the word year the term light year may be.
The year used by the international astronomical union is 365 25 days. Light travels at a speed of 186 000 miles. A light year is the distance that light travels in one year. Distance light can travel in a vacuum over a period of 365 25 days.
A light year is a measurement of distance and not time as the name might suggest. A light year is the distance that light can travel in a year or. More specifically a light year is defined as the distance that a photon would travel in free space and infinitely far away from any gravitational or magnetic fields in. Roughly 9 46 1012 kilometres 9 46 petametres or about 5 88 1012 nearly six trillion miles.
Therefore a light year is exactly 9 460 730 472 580 8 kilometers.
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