HR Diagram

Front

What is the H-R Diagram?

Back

The Hertzsprung-Russell (H-R) Diagram is a scatter plot of stars showing the relationship between their absolute magnitudes or luminosities versus their stellar classifications or effective temperatures.

Front

What category contains the most stars in the H-R Diagram?

Back

The Main Sequence category contains the most stars.

Front

Where is our Sun located on the H-R Diagram?

Back

Our Sun is located in the Main Sequence category.

Front

What type of stars are found in the Main Sequence?

Back

Main Sequence stars are those that are in the stable phase of hydrogen burning, including stars like our Sun.

Front

What are red stars known for?

Back

Red stars are known for being the coolest stars on the H-R Diagram.

Front

What is the significance of luminosity in the H-R Diagram?

Back

Luminosity indicates the total amount of energy a star emits per second, which helps classify stars on the H-R Diagram.

Front

What does a star's temperature indicate on the H-R Diagram?

Back

A star's temperature indicates its color and stage in the stellar lifecycle, with hotter stars appearing blue and cooler stars appearing red.

Front

What are supergiants?

Back

Supergiants are very large and luminous stars that are found above the Main Sequence on 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 star that has exhausted its nuclear fuel and is found below the Main Sequence on the H-R Diagram.

Front

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

Back

A star's color is directly related to its temperature; hotter stars are blue, while cooler stars are red.