Table 2-1

-Refer to Table 2-1. Which star in the table would not be visible to the unaided eye of an observer on Earth?
A) a Cet
B) a Cma
C) Nim
D) r Per
E) d Dra

Question

Table 2-1 
 
-Refer to Table 2-1. Which star in the table would not be visible to the unaided eye of an observer on Earth?
A) a Cet 
B) a Cma 
C) Nim 
D) r Per 
E) d Dra

Quizplus · Accepted Answer

The visibility of a star to the unaided eye depends on its apparent magnitude. Stars with an apparent magnitude greater than 6 are generally not visible to the naked eye. Nim likely has an apparent magnitude above this threshold, making it not visible without aid.

Table 2-1 -Refer to Table 2-1. Which Star in the Table Would