Life Cycle of Stars and HR Diagram

Front

What process occurs when hydrogen atoms join together to create helium atoms, releasing energy?

Back

Nuclear fusion

Front

What is the color of the highest surface temperature of a star?

Back

Blue

Front

Is the surface temperature of White Dwarf stars higher or lower than that of Red Supergiants?

Back

Higher

Front

Is the luminosity of Blue Giant stars higher or lower than that of White Dwarfs?

Back

Higher

Front

Where do all stars begin their life cycle?

Back

Nebula

Front

What is the main sequence in the life cycle of a star?

Back

The main sequence is a stage where stars spend most of their life fusing hydrogen into helium in their cores.

Front

What is a Red Supergiant?

Back

A Red Supergiant is a massive star that has expanded and cooled, resulting in a red appearance.

Front

What is a White Dwarf?

Back

A White Dwarf is the remnant of a star that has exhausted its nuclear fuel and shed its outer layers.

Front

What is the Hertzsprung-Russell (HR) Diagram?

Back

The HR 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 type of star is typically the most luminous?

Back

Blue Giant stars are typically the most luminous.