- A star’s colour is determined by its temperature.
- Hotter stars appear blue, cooler stars appear red, and in-between stars – like our Sun – appear yellow.
- The temperature of a star is affected by several things, including its age and mass – meaning how much gas it contains.
- The Sun
Spark a discussion
- Why do different stars appear to be different colours?
- Why do you think it’s difficult to study stars up-close?
- What questions do you have about stars?
Explore our resources
Complete your lesson with teaching resources on our solar system from Tigtag.
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