Astronomy Review

Which type of galaxy is composed of mostly old stars, because it has very little gas and dust for making new stars? 

• Elliptical
• Spiral
• Irregular 

What type of galaxy is shown here?

• Spiral 
• Elliptical
• Irregular 

What type of galaxy is shown here?

• Spiral
• Elliptical
• Irregular 

What type of galaxy is the milky way?

• spiral 
• elliptical
• irregular 

MOST stars on the HR diagram and in the universe are what type of stars? 

• Red giants
• Blue giants
• White dwarfs
• Main sequence

What characteristics do white dwarf stars have? 

• hot and bright
• hot and dim
• cool and bright
• cool and dim 

What characteristics do red giants and supergiants have? 

• hot and bright
• hot and dim
• cool and bright
• cool and dim 

Tags

NGSS.HS-ESS1-3

What characteristics do blue giants have?

• hot and bright
• hot and dim
• cool and bright
• cool and dim 

Which two types of stars are main sequence stars? 

• blue giants and red giants
• blue giants and red dwarfs
• white dwarfs and red dwarfs
• white dwarfs and red supergiants

Where is the sun located on the HR diagram? 

• red dwarfs
• main sequence
• red giants
• blue supergiants 

Tags

NGSS.HS-ESS1-1