The distance to the andromeda galaxy is estimated at about 2 ' 106 light years. a light year is the distance traveled by light in one year; if the speed of light is 3 ' 108 m/s, about how far is it from our galaxy to andromeda? (1 year = 3.15 ' 107 s)

Question

Physics

Tucker Chung

13 November, 07:04

The distance to the andromeda galaxy is estimated at about 2 ' 106 light years. a light year is the distance traveled by light in one year; if the speed of light is 3 ' 108 m/s, about how far is it from our galaxy to andromeda? (1 year = 3.15 ' 107 s)

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Teresa Stewart · Answer 1

The distance of andromeda to earth is, 2x10^6 light year.

Convert year to second by multiplying with 3.15x10^7.

Convert light second to meter by multiplying with 3x10^8.

So, the distance in meters is, 1.89x10^22 m.