(78) Diana

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(78 ) Diana is an asteroid of the main asteroid belt, which was discovered on 15 March 1863 by Karl Theodor Robert Luther.

It was named after celestial bodies Diana, the Roman goddess of the hunt.

Diana moves at a distance of 2.1 ( perihelion ) to 3.2 ( aphelion ) astronomical units in 4.2 years around the sun. The orbit is inclined 8.7 ° to the ecliptic, the orbital eccentricity is 0.21.

Diana has a diameter of 120 kilometers. It has a dark carbonaceous surface with a geometric albedo of 0.07. In about 7.3 hours to rotate around its own axis.