What can spectra tell us about temperature?
Stars are too far away (and too hot!) for a human to touch, yet we can measure their temperatures. Spectra make this possible! Let’s investigate how.Temperature Predictions
Spectrum Notebook. Answer these questions in your Notebook:
- You see a red star and a blue star in the sky. Which do you think has the higher temperature?
- Explain why you chose the answer you did. (It is okay if you guessed. We will explain the answer in the next section.)
