Question
unit of distance used in astronomy is the parsec (pc):
1 pc = 3.26 ly.
The distance to the Earth's next-nearest star, α-Centauri, is 1.3 pc. Find the distance d to α-Centauri in light-years and in meters.
1 pc = 3.26 ly.
The distance to the Earth's next-nearest star, α-Centauri, is 1.3 pc. Find the distance d to α-Centauri in light-years and in meters.
Answers
Arora
1 pc = 3.26 ly
=> (1 * 1.3) pc = (3.26 * 1.3) ly
=> 1.3 pc = 4.238 ly
So, the distance is 4.238 light years
1 ly = 9.461 * 10^15 m
4.328 ly = 4 * 10^16 m
=> (1 * 1.3) pc = (3.26 * 1.3) ly
=> 1.3 pc = 4.238 ly
So, the distance is 4.238 light years
1 ly = 9.461 * 10^15 m
4.328 ly = 4 * 10^16 m