what is lightyear and who at first who discover it ?
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LIGHT YEAR is the distance travelled by light in 1 year in vacuum .
And it was discovered by FRIEDRICH BESSEL.
1 Light year = 9.46 * 10 ^15 m ( approx 10 * 10 ^16 m).
And it was discovered by FRIEDRICH BESSEL.
1 Light year = 9.46 * 10 ^15 m ( approx 10 * 10 ^16 m).
viku77:
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light year is a astronomical unit if distance,it is the distance travelled by light in one year in vacuum .
and it was discovered by freidrich Bessel....
and it is used to measure the distance between stars ,planets etc.
and it was discovered by freidrich Bessel....
and it is used to measure the distance between stars ,planets etc.
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