With an orbital speed of about 35 km/s (the Earth moves at 30 km/s), the siderial and synodic periods of Venus are about 225 and 584 days respectively. The inclination of the planetary orbits to the plane of the Ecliptic The inclination of the Venusian orbit to the plane of the Ecliptic (the Ecliptic is the projection of the Earth's orbit onto the celestial sphere) is about 3° 24'. For comparison, the eccentricity of the Earth's orbit is 0.0167. The difference between its aphelion (the orbital point farthest from the Sun) and perihelion (the orbital point where a body is closest to the Sun) is only 1.5 million km, which gives its orbit an eccentricity - that is the ratio of the distance between the foci of an ellipse to the length of its major axis - of 0.007, the lowest of any planet. The Earth's sister planet revolves around our central star in an elliptical orbit that is the most circular of any planet. Venus and its position in the solar system Its orbit about the Sun takes 225 days with its distance from the Sun being almost three-quarters of the Earth's. With a mean distance of about 108 million kilometres or 0.72 AU, Venus is the second closest planet to the Sun and our nearest planetary neighbour.

Venus' orbit and visibility - day, night and seasons on Venus

Venus orbit