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Hidalgo comparison table
Subject has orbirtal period is a kind of is an instance of has diameter has discovery date has inclination has semi-major axi has definition has asteroid number has eccentricity has discoverer
asteroid celestial body     Also called planetoids or minor planets, the asteroids are tiny planets most of which orbit the Sun between Mars and Jupiter. The largest - and the first discovered - is Ceres, with a diameter of 1,003 km. It is estimated that there may altogether be no fewer than 40000. A few have very elliptical orbits and cross the orbits of several other (major) planets. One or two even have their own satellites (moons).   
Hidalgo13.7 years asteroid20 km192042°.5a = 5.8 AUAsteroid with the largest known orbit with the second highest inclination to the ecliptic and second highest eccentricity of any asteroid.944e = 0.66Baade

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