Answer:
Luminosity of the two stars is the same.
Explanation:
It is given that Star X is closer to Earth than Star Y therefore even if the luminosity of these two stars is same, the one that is near to earth will appear brighter as compared to the other distant star.
The brightness of a star is directly proportional to the square of the distance between the stars and observant.
Here in the case the as the distance gets doubled the brightness becomes four times
