The temperature of the Sun's photosphere is
A) about 10,000 K.
B) 4400 K.
C) 5800 K.
D) close to 1 million K.

Question

Quizplus · Accepted Answer

The temperature of the Sun's photosphere, which is the visible surface of the Sun, is about 5800 K. This is based on measurements of the peak wavelength of the Sun's radiation, also known as Wien's law. Option A is too high, option B is the temperature of the Sun's chromosphere, and option D is the temperature of the Sun's corona, which is the outermost layer of the Sun's atmosphere.

The Temperature of the Sun's Photosphere Is