Lesson 1 Stars

Multiple Choice

Look at the H-R diagram. Which star is
sort of cool, dim (not too much light), and red?

• Betelgeuse

• Sirius B

• Procyon B

• Bernard's Star

Multiple Choice

Which type of star has low temperature and high luminosity?

• Red Supergiants
• Red Giants
• Blue Supergiants
• White Dwarfs

Multiple Choice

What is absolute magnitude in the context of stars?

• The distance of a star from Earth

• The color of a star

• How bright a star really is if all stars were placed at the same distance

• The temperature of a star

Follow-up Questions:

Briefly answer the following in 2-3 sentences:

1. Based on their brightness and color, which stars do you think are the hottest? Why?

2. Which stars are likely to be cooler? Why?