Barnard's star,one of our nearest neighbors,is classified as M5 V.This means that it is a
A) cool giant.
B) hot main-sequence star.
C) cool supergiant.
D) a cool main-sequence star.

Question

Quizplus · Accepted Answer

The spectral classification "M5 V" indicates that Barnard's star is a cool main-sequence star. The "M" indicates a cool temperature, while "V" indicates that it is a main-sequence star, rather than a giant or supergiant.

Barnard's Star,one of Our Nearest Neighbors,is Classified as M5 V