5.2 GOW HR Diagram Practice

Front

What is the Hertzsprung-Russell diagram?

Back

The Hertzsprung-Russell diagram is a scatter plot that shows the relationship between a star's surface temperature and its brightness.

Front

What does the Y-axis represent in the Hertzsprung-Russell diagram?

Back

The Y-axis represents the brightness of stars.

Front

What does the X-axis represent in the Hertzsprung-Russell diagram?

Back

The X-axis represents the surface temperature of stars.

Front

What is the temperature of Polaris?

Back

6000 ℃

Front

Which star is hotter and brighter than our Sun?

Back

Spica

Front

What type of stars are found in the upper left of the Hertzsprung-Russell diagram?

Back

Hot, bright stars.

Front

What type of stars are found in the lower right of the Hertzsprung-Russell diagram?

Back

Cool, dim stars.

Front

What is the significance of the main sequence in the Hertzsprung-Russell diagram?

Back

The main sequence is where most stars, including the Sun, are found, and it represents a stable phase of stellar evolution.

Front

What is a red giant?

Back

A red giant is a large star that has expanded and cooled, moving off the main sequence in the Hertzsprung-Russell diagram.

Front

What is a white dwarf?

Back

A white dwarf is a small, dense star that is the remnant of a star that has exhausted its nuclear fuel.