Question 1
A Hertzsprung-Russell diagram (H-R Diagram) is a plot of ________.
◦ size versus brightness
◦ brightness versus temperature
◦ color versus brightness
◦ size versus color
◦ temperature versus color
Question 2
A red star is ________ our Sun.
◦ hotter and larger than
◦ hotter and smaller than
◦ colder and larger than
◦ colder and smaller than
◦ approximately the same temperature and size as