On a Hertzsprung-Russell diagram, where would we find stars that are cool and dim?

lower right

On a Hertzsprung-Russell diagram, where on the main sequence would we find stars that have the greatest mass?

upper left

On a Hertzsprung-Russell diagram, where would we find stars that are cool and luminous?

upper right

On a Hertzsprung-Russell diagram, where would we find red giant stars?

upper right

On a Hertzsprung-Russell diagram, where would we find white dwarfs?

lower left

On a Hertzsprung-Russell diagram, where would we find stars that have the largest radii?

upper right

Which of the following is the most common type of main-sequence star?

an M star

Which of the following is true about low-mass stars compared to high-mass stars?

Low-mass stars are cooler and less luminous than high-mass stars.

In order to understand star clusters, we need to be able to estimate their ages. What technique do scientists use for this?

finding the main-sequence turnoff point of the stars

On the main sequence, stars obtain their energy

by converting hydrogen to helium

You observe a star in the disk of the Milky Way, and you want to plot the star on an H-R diagram. You will need to determine all of the following, except

The rotation rate of the star.

The spectral sequence in order of decreasing temperature is

OBAFGKM.

The spectral sequence sorts stars according to

surface temperature.

Which of the following luminosity classes refers to stars on the main sequence?

V