Simplify the following text for a Grade 10 native English-speaking person.
Original: 5335 Damocles is the archetype of the Damocloids , asteroids that are inactive nuclei of the Halley Family and long period comets .
Simplified: 5335 Damocles is the main asteroid of the Damocloids , asteroids that are inactive comets of the Halley Family and long period comets .