5/7 - HR Diagrams

Front

What spectral class does our star, the sun, belong to?

Back

G

Front

Which star is brighter than Alpha Centauri B, but dimmer than the sun?

Back

Tau Ceti

Front

What group or category does our Sun belong to?

Back

Main Sequence

Front

Which category contains the most stars?

Back

Main Sequence

Front

Which star is the coldest?

Back

Red Star

Front

What is the main sequence in the HR diagram?

Back

A continuous band of stars that are fusing hydrogen into helium in their cores.

Front

What are supergiants?

Back

Massive stars that are larger than giants and have a very high luminosity.

Front

What are white dwarfs?

Back

The remnants of stars that have exhausted their nuclear fuel and collapsed.

Front

What is the significance of the HR diagram?

Back

It classifies stars based on their luminosity, temperature, and evolutionary stage.

Front

What color are the hottest stars?

Back

Blue stars are the hottest.