Distance traveled by the light in one year is called light year 9.5 x 10 to the power12 KM .
Star is approximately 1.9 x 10 to the power 20 KM from the earth express the distance in light years?Star is approximately 1.9 x 10 to the power 20 KM from the earth express the distance in light years?Light year = 9.5 * 10^15 metres per year
Star Distance = 1.9 * 10^23 metres
Star Dist. / Light Year = 1.9 * 10^23 / 9.5 * 10^15
= 2 * 10^7 light years or 20 million light years.
It's a very, very long long way! ;o)
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