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## Main Question or Discussion Point

Can somebody please confirm that my answers are right?

1. At what time on earth did the light start from a galaxy 2 billion light years away?

My answer was 2 X 10^9 years. This problem seemed too easy to be true.

2. How far is the nearest star in kilometers (about 1.3 par sec away)?

My answer: 3.77 X 10^12 km

Thanks for the help!

1. At what time on earth did the light start from a galaxy 2 billion light years away?

My answer was 2 X 10^9 years. This problem seemed too easy to be true.

2. How far is the nearest star in kilometers (about 1.3 par sec away)?

My answer: 3.77 X 10^12 km

Thanks for the help!