User: What are some great comets named after people?
Assistant: Great comets named after people: 
- Aristotle's Comet
- Caesar's Comet
- Donati's Comet
- Halley's Comet
- Comet Skjellerup–Maristany
- Comet Arend–Roland
- Comet Mrkos
- Comet Ikeya–Seki
- Comet Bennett
- Comet Kohoutek
- Comet West
- Comet Hyakutake
- Comet Hale–Bopp
- Comet McNaught
- Comet Lovejoy