HR Diagram

Front

What is the function of a spectroscope?

Back

A spectroscope disperses, or separates, white light from a star into a very wide spectrum of colors.

Front

True or False: White dwarfs are warmer and dimmer than giants.

Back

True

Front

Which star is brighter than the sun?

Back

Aldebaran is brighter than the sun.

Front

Knowing the color of a star also tells us its __________

Back

temperature.

Front

What is magnitude in relation to stars?

Back

Magnitude refers to the degree of brightness of a star.

Front

What does the color of a star indicate?

Back

The color of a star indicates its temperature.

Front

What type of star is a white dwarf?

Back

A white dwarf is a small, dense star that is typically the remains of a red giant.

Front

What is the main characteristic of a giant star?

Back

Giant stars are larger and more luminous than main-sequence stars.

Front

What is the relationship between a star's temperature and its color?

Back

Hotter stars appear blue or white, while cooler stars appear red.

Front

What is the Hertzsprung-Russell diagram?

Back

The Hertzsprung-Russell diagram is a scatter plot of stars showing the relationship between their absolute magnitudes and stellar classifications.