Use the diagram to answer the question.

The Hertzsprung-Russell Diagram shows the spectral class of stars across the top, the temperature in Kellvin of stars across the bottom. The luminosity of stars, with the luminosity of the Sun equal to one, on the right, and the absolute magnitude of stars on the right. Blue giants, red supergiants, red giants, main sequence stars, the Sun, and white dwarfs are shown on the diagram.

Which type of star is in spectral class K and has a luminosity of 10^6?

(1 point)
Responses

A) red supergiant

B) blue giant

C) white dwarf

D) red giant

1 answer

In the Hertzsprung-Russell Diagram, stars in spectral class K typically are red giants or can sometimes be part of the main sequence. Given that the question specifies a luminosity of \(10^6\), which is significantly higher than that of the Sun, this characteristic aligns with red supergiants, as they are among the most luminous stars.

Therefore, the correct answer is:

A) red supergiant