Across
- 2. Surrounds the nucleus of a comet
- 6. A comet that appears once or twice in a person's lifetime
- 7. A sphere surrounding our solar system
- 8. The tail of gas from a comet
Down
- 1. A comet that appears every couple hundred years
- 3. The most popular comet we can see from the earth every 76 years
- 4. The tail of particles from a comet
- 5. Circles around our solar system
- 9. Solid, central part of a comet