The spectral class of the Sun is G2 and the star Enif is K2.From this information,we know that Enif is
A) farther away from the Sun.
B) cooler than the Sun.
C) intrinsically brighter than the Sun.
D) hotter than the Sun.

Question

Quizplus · Accepted Answer

The spectral class gives us information about the temperature of the star, with G being hotter than K. Therefore, Enif being of spectral class K2 means that it is cooler than the Sun (spectral class G2). This is the only information we can infer from the given data.

The Spectral Class of the Sun Is G2 and the Star