The Sun's spectrum peaks in the green region (i.e.,green is the most intense color in its spectrum).The spectrum of Rigel (the knee of Orion)peaks in the short-wavelength end of the visible spectrum.Compared with the Sun,Rigel is:
A) cooler and redder.
B) hotter and redder.
C) cooler and whiter.
D) hotter and whiter.

Question

Quizplus · Accepted Answer

Since Rigel's spectrum peaks in the short-wavelength end of the visible spectrum, it has hotter temperatures than the Sun. Additionally, since it peaks in the blue/white end of the spectrum, it is whiter in color compared to the Sun's green peak.

The Sun's Spectrum Peaks in the Green Region (I