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Category

1. Kuiper belt (19)
2. Scattered disk (2)
3. Oort cloud (1)

Type

1. Dwarf planet (4)
2. Moon (12)
3. TNO (6)

Satellites

1. Has satellites (6)

Orbit

1. Prograde (22)

Rotation

1. Direct (18)
2. Synchronous (3)
3. Retrograde (1)

Atmosphere

1. Trace (2)

Shape

1. Equilibrium spheroid (6)

Geological activity

1. Is active (1)
2. In the past (3)

Diameter/Size

1. More than 400 km (12)
2. 100 to 400 km (4)
3. Less than 100 km (6)