by Spirit Ghidorah 2010 » Thu May 26, 2011 2:28 pm
Hedorah wrote:W2daERN wrote:
A light year is a unit of distance, the distance light travels in a year. The star disintegrated 13 billion years ago, and it took 13 billion years for the light to reach us.
skreeonk I knew I'd mess it up, I always thought a light year was like 9.45x10^15 years, but I also knew it was miles, just plain idiocy on my part
Wrong again.
Firstly, it's in kilometers, not miles.
Secondly, it's 9.45 multiplied with 10^12, not 10^15.
Just for future reference

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