SOLUTION: It takes 4 years for light from Sirius, a near neighbouring star to reach earth. The speed of light is 2.998 X 10^8 ms-1 How far away from Earth is Sirius? Give your answer in K

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Question 1081992: It takes 4 years for light from Sirius, a near neighbouring star to reach earth. The speed of light is 2.998 X 10^8 ms-1 How far away from Earth is Sirius? Give your answer in Km correct to 3 significant figures
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
It's not 4 years.
It's 8.6 years.