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Also includes the asteroid belt (the white donut-shaped cloud), the Hildas (the orange "triangle" just inside the orbit of Jupiter), the Jupiter trojans (green), and the near-Earth asteroids. The group that leads Jupiter are called the "Greeks" and the trailing group are called the "Trojans" (Murray and Dermott, Solar System Dynamics , pg. 107)
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Following the discovery of Leleākūhonua, Sheppard et al. concluded that it implies a population of about 2 million inner Oort cloud objects larger than 40 km (25 mi), with a combined total mass of 1 × 10 22 kg, about the mass of Pluto (a fraction the mass of Earth's moon but several times the mass of the asteroid belt).
21 Lutetia is a large M-type asteroid in the main asteroid belt.It measures about 100 kilometers in diameter (120 km along its major axis). It was discovered in 1852 by Hermann Goldschmidt, and is named after Lutetia, the Latin name of Paris.
162173 Ryugu (provisional designation 1999 JU 3) is a near-Earth object and also a potentially hazardous asteroid of the Apollo group.It measures approximately 900 metres (3,000 ft) in diameter and is a dark object of the rare spectral type Cb, [11] with qualities of both a C-type asteroid and a B-type asteroid.