The angular separation of two stars is 0.1 arcseconds and you photograph them with a telescope that has an angular resolution of 1 arcsecond. What will you see?
A)You will see two distinct stars in your photograph.
B)The stars will not show up at all in your photograph.
C)The two stars will appear to be touching, looking rather like a small dumbbell.
D)The photo will seem to show only one star rather than two.

Question

Quizplus · Accepted Answer

The angular resolution of the telescope is larger than the angular separation of the stars, meaning the telescope cannot distinguish the two stars as separate entities. They will appear as a single star in the photograph.

The Angular Separation of Two Stars Is 0