Front

What do all the stars on the Main Sequence have in common?

Back

All stars on the Main Sequence undergo Hydrogen Fusion.

Front

Where are Red Giants on the H-R Diagram relative to the Main Sequence?

Back

Red Giants are located above the Main Sequence on the H-R Diagram.

Front

Do large and/or hot stars burn out quickly?

Back

TRUE, large and/or hot stars have shorter lifespans.

Front

Which is the hottest star magnitude?

Back

O is the hottest star magnitude.

Front

What does 'Luminosity' mean?

Back

Luminosity refers to Absolute Brightness.

Front

What is the H-R Diagram?

Back

The 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 are the main regions of the H-R Diagram?

Back

The main regions are the Main Sequence, Red Giants, Supergiants, and White Dwarfs.

Front

What type of stars are found on the Main Sequence?

Back

Main Sequence stars are primarily Hydrogen-burning stars.

Front

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

Back

A star's temperature determines its color; hotter stars appear blue, while cooler stars appear red.

Front

What is a Supergiant star?

Back

Supergiants are very large stars that are much brighter than the Sun and have short lifespans.