Question

use the diagram to answer the question.
hertzsprung–russell diagram
which type of star is in spectral class k and has a luminosity of $10^4$?
(1 point)
\bigcirc red subgiant
\bigcirc red giant
\bigcirc blue giant
\bigcirc white dwarf

Explanation:

Locate spectral class K on the horizontal axis, then find the luminosity level of $10^4$ on the vertical axis. The intersection of these coordinates falls on the red supergiant region of the Hertzsprung-Russell Diagram.

Answer:

red supergiant