# Question

Sirius is about 9.0 light-years from Earth.

(a) To reach the star by spaceship in 12 years (ship time), how fast must you travel?

(b) How long would the trip take according to an Earth-based observer?

(c) How far is the trip according to you?

(a) To reach the star by spaceship in 12 years (ship time), how fast must you travel?

(b) How long would the trip take according to an Earth-based observer?

(c) How far is the trip according to you?

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