HR Diagram

Which of these stars is hottest?

• Red Star

• Yellow Star

• Orange Star

• Blue Star

Which category is our Sun located in?

• White Dwarfs

• Supergiants

• Main Sequence

• Giants

Red stars are the _____________.

• hottest

• coolest

• biggest

• brightest

Blue stars are the _____________.

• hottest

• coolest

• smallest

Which star has the lowest temperature?

• A

• B

• C

• D

The distance that light travels in one year...

• Light year

• Quantumyear

• Stellar-year

• 1 million kilometers

A large cloud of gas and dust in interstellar space; the predecessor to stars...

• Constellation

• Black hole

• Nebula

• Galaxy

The Hertzprung Russell Diagram consists of two axis that are labelled...

• Luminosity and Size

• Luminosity and Temperature

• Luminosity and Age

Our sun is currently a ______________________ then will become a _________________________ and lastly a _______________________.

• main sequence, red giant, super giant

• main sequence, red dwarf, white dwarf

• main sequence, red giant, white dwarf

• main sequence, red giant, red dwarf

Which spectral class does our star, the sun, belong to?

• M

• K

• G

• F