NOTABLE ASTEROIDS & KBOS A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z                    HOME ABOUT CATEGORIES SITE MAP COPYRIGHT ADVERTISE CONTACT entire Web this site Juno (minor planet 3) Images of asteroid 3 Juno taken with the Hooker telescope show what appears to be a 96-km-wide crater. The crater is visible as a darkened area in the lower left quadrant in the 833 nm and 934 nm images The ninth largest asteroid and third to be discovered, in 1804 by the German astronomer Karl Harding (1765-1834). Surface maps of Juno made from observations by the 100-inch Hooker Telescope at Mount Wilson Observatory in 2003 show the presence of what may be a 96-km (60-mile) wide crater. Diameter 230 × 288 km Spectral class S Albedo 0.2 Rotational period 7.2 hours Semimajor axis 2.669 AU Perihelion 1.979 AU Aphelion 3.358 AU Eccentricity 0.258 Inclination 12.97° Period 4.36 years Related entry    • mythology of Juno (Encyclopedia of History) Related category    • NOTABLE ASTEROIDS, CENTAURS, AND KUIPER BELT OBJECTS Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) BACK TO TOP