Which star,according to its apparent magnitude,would NOT be visible to the unaided eye on a clear night?
A) Tau Ceti m = +3.49
B) Alpha Centauri B m = 1.34
C) Barnard's star m = +9.53
D) 61 Cygni A m = +5.21

Question

Quizplus · Accepted Answer

The higher the magnitude number, the fainter the star appears to us. A magnitude of +9.53 would be too faint to be seen by the unaided eye on a clear night.

Which Star,according to Its Apparent Magnitude,would NOT Be Visible to the Unaided