(140) Siwa

Template: Infobox Asteroid / Maintenance / Error 1

(140 ) Siwa is one of the main asteroid belt asteroid, which was discovered on 13 October 1874 by Johann Palisa. The name derives from the Slavic goddess Siwa.

Siwa is between 2.1 ( perihelion ) astronomical units to 3.3 astronomical units ( aphelion ) in 4.5 years of the sun. The orbit is inclined 3.2 ° to the ecliptic, the orbital eccentricity is 0.22.

Siwa has a diameter of 110 km. It has a dark carbon-rich surface with an albedo of 0.07. The rotation period of the asteroid is not yet precisely known.

Orbital inclination Longitude of the ascending node Argument of periapsis Orbital speed Intrinsic brightness Minor planet designation List of minor planets
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