Across
- 1. A law that relates the peak wavelength of radiation to temperature.
- 3. A large star that is cooler than the Sun and appears reddish.
- 5. A law stating that total energy emitted is proportional to temperature to the fourth power.
- 8. The brightness or total energy output of a star
- 9. A small but very hot star that remains after a medium-sized star dies.
Down
- 2. A device that detects heat radiation from objects, including human bodies.
- 4. A hollow space inside an object that traps radiation.
- 6. An ideal object that absorbs all radiation that falls on it.
- 7. A very large and extremely hot star that appears blue in color.