Focused Study: Star Color & Letter Classification

The color of a star tells us its

• Temperature

• Magnitude

• Size

• Age

Very hot stars are what color?

• Red

• Orange

• Yellow

• Blue

Blue stars are the _____________.

• hottest
• coolest
• smallest

Tags

NGSS.HS-ESS1-3

Red stars are the _____________.

• hottest
• coolest
• biggest

Tags

NGSS.HS-ESS1-3

Put the stars in order from hottest to coolest.

• Blue, Red, White, Yellow, Orange, 
• Red, White, Yellow, Orange, Blue
• Blue, White, Yellow, Red, Orange
• Blue, White, Yellow, Orange, Red

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

A scientist discovers a new star. It is blue-white and is about 20,000 K. Which star is it most similar to?

• Sun

• Rigel

• Vega

• Canopus

What color of star is the hottest?

• Blue
• Red
• Yellow
• Orange

Tags

NGSS.MS-PS3-4

Put the stars in order from hottest to coolest.

• Blue, White, Yellow, Orange, Red

• Red, Orange, Yellow, White, Blue

• Red, Orange, Yellow, Blue, White

• Red, Yellow, Orange, White, Blue

Tags

NGSS.HS-ESS1-3

The smallest stars (under normal conditions) have this letter classification

• A

• G

• M

• O

Our sun is a "medium type" star and is classified by the letter :

• A

• G

• M

• O