ceres is the biggest asteroid in the solar system.
ceres is the biggest asteroid in the solar system.
what is the biggest asteroid in the solar system?
ceres
in the nice model, many kuiper-belt objects are captured in the outer asteroid belt, at distances greater than 2.6 au. most were later ejected by jupiter, but those that remained may be the d-type asteroids, and possibly include ceres.









































section::::distribution within the solar system.









































various dynamical groups of asteroids have been discovered orbiting in the inner solar system. their orbits are perturbed by the gravity of other bodies in the solar system and by the yarkovsky effect. significant populations include:









































section::::distribution within the solar system.:asteroid belt.
asteroid
of the many exoplanets discovered, most have a higher orbital eccentricity than planets in our solar system. exoplanets found with low orbital eccentricity, near circular orbits, are very close to their star and are tidally locked to the star. all eight planets in the solar system have near-circular orbits. the exoplanets discovered show that the solar system, with its unusually low eccentricity, is rare and unique. one theory attributes this low eccentricity to the high number of planets in the solar system; another suggests it arose because of its unique asteroid belts. a few other multiplanetary systems have been found, but none resemble the solar system. the solar system has unique planetesimal systems, which led the planets to have near-circular orbits. solar planetesimal systems include the asteroid belt, hilda family, kuiper belt, hills cloud, and the oort cloud. the exoplanet systems discovered have either no planetesimal systems or one very large one. low eccentricity is needed for habitability, especially advanced life. high multiplicity planet systems are much more likely to have habitable exoplanets. the grand tack hypothesis of the solar system also helps understand its near-circular orbits and other unique features.
orbital eccentricity