8.8A-Stars and HR Diagram

Front

As you move along the x-axis of the H-R diagram, temperature __________.

Back

decreases

Front

Which star is sort of cool, dim (not too much light), and red?

Back

Barnard's star

Front

The category that contains the most stars is...

Back

Main Sequence

Front

What is plotted on an H-R diagram?

Back

A star's temperature and brightness

Front

Red stars are the _____________.

Back

coolest

Front

What does the H-R diagram stand for?

Back

Hertzsprung-Russell diagram

Front

What are the two main axes of the H-R diagram?

Back

Temperature (x-axis) and Luminosity (y-axis)

Front

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

Back

Supergiants

Front

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

Back

Red dwarfs

Front

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

Back

Hotter stars are generally brighter.