HR Diagram

Front

What does the Hertzsprung-Russell diagram graph?

Back

The Hertzsprung-Russell diagram graphs stars' luminosity against their temperature.

Front

Which type of star is typically the hottest?

Back

O-type stars are typically the hottest stars.

Front

What is the Main Sequence in the H-R diagram?

Back

The Main Sequence is a continuous band where most stars, including our Sun, are found, characterized by hydrogen fusion in their cores.

Tags

NGSS.HS-ESS1-1

Front

What color are the coolest stars on the H-R diagram?

Back

The coolest stars are red.

Front

What type of stars are found in the upper right of the H-R diagram?

Back

Red giants and supergiants are found in the upper right of the H-R diagram.

Front

What is a white dwarf?

Back

A white dwarf is a small, dense star that is the remnant of a low to medium mass star after it has exhausted its nuclear fuel.

Tags

NGSS.HS-ESS1-3

Front

What does luminosity measure in stars?

Back

Luminosity measures the total amount of energy emitted by a star per unit of time.

Front

What is the significance of a star's temperature?

Back

A star's temperature affects its color, luminosity, and stage in the stellar lifecycle.

Front

What type of galaxy is characterized by a flat, rotating disk containing stars, gas, and dust?

Back

A spiral galaxy is characterized by a flat, rotating disk.

Front

What is the difference between a giant star and a supergiant star?

Back

Giant stars are larger than main sequence stars but smaller than supergiants, which are among the largest stars in the universe.