Question

The picture below shows the position of Earth and two stars.

Star 1 is 34 light years from Earth and Star 2 is 52 light years from Earth. If Star 2 explodes as a supernova, in how many years would the explosion be seen from a planet orbiting Star 1?

A. 18
B. 34
C. 52
D. 70

Answer 1

The answer is:

18 years.

The explanation:

when Star 1 is 34 light years from Earth and Star 2 is 52 light years from Earth. that means the distance between star 1 and star 2 is 52-34 = 18 years so, If Star 2 explodes as a supernova so, the explosion would take 18 years to be seen from a planet orbiting Star 1.