ECCENTRICITY

'Eccentricity' may refer to:

★ Eccentricity (behavior), unusual or odd behavior on the part of a person, as opposed to being "normal"

★ Eccentricity (mathematics), a parameter associated with every conic section

★ Eccentricity vector

★ Eccentricity (graph theory) of a vertex in a graph

★ Eccentric contraction, lengthening of muscle fibers

★ Eccentric (mechanism), a wheel that rotates on an axle that is displaced from the focus of the circle described by the wheel

★ Eccentric position of a surveying tripod to be able to measure hidden points

★ Orbital eccentricity, in astrodynamics, calculated from orbital state vectors as an absolute value of eccentricity vector or using other methods based on orbital energy and angular momentum.

★ Eccentric anomaly, the angle between the direction of periapsis and the current position of an object on its orbit.

★ Eccentric (astronomy), a type of deferent, a circle or sphere used in obsolete astronomical systems to carry a planet around the Earth or Sun.