Which of these phrases describes the sun?(1 point)

Class G yellow star

How is the sun classified on an Hertzsprung-Russell Diagram?(1 point)

Responses

as a giant star
as a giant star

as a main sequence star
as a main sequence star

as a white dwarf star
as a white dwarf star

as a supergiant star

as a main sequence star

Star Types Quick Check

3 of 63 of 6 Items
Question
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 106?

(1 point)
Responses

red supergiant
red supergiant

red giant
red giant

white dwarf
white dwarf

blue giant

red giant

Which of these properties is the best measure of a star's brightness?(1 point)

Responses

age
age

size
size

apparent magnitude
apparent magnitude

absolute magnitude

apparent magnitude

Which spectral class does a star fit into if it has a surface temperature of 20,000 K?

(1 point)
Responses

A
A

M
M

G
G

B

B

Which piece of spectral data is necessary to determine the spectral class of a star?

(1 point)
Responses

apparent magnitude
apparent magnitude

temperature
temperature

absolute magnitude
absolute magnitude

luminosity

temperature