Definitions for

**"ECCENTRICITY"****Related Terms:**Apsis, Anomaly, Semimajor axis, Semi-major axis, Elliptical orbit, Apoapsis, Periapsis, Orbital plane, Perigee, Periastron, Apogee, Revolution , Orbital elements, Ellipticity, Perihelion, Aphelion, Orbit , Mean anomaly, Apastron, Opposition, Revolve, Prograde, Stellar parallax, Direct motion, Retrograde, Appulse, Aerobraking, Epicycle, Libration, Retrograde motion, Ecliptic, Ellipse, Plane of the ecliptic, Stationary point, Orbital motion, Sun-synchronous orbit, Elongation, Barycenter, Kepler's laws, Stationary, Conjunction, Orbital, Superior conjunction, Synchronous rotation, Black moon, Mean solar time, Rising, Orbiter, Kepler, Kepler, johannes

The state of being eccentric; deviation from the customary line of conduct; oddity.

The ratio of the distance between the center and the focus of an ellipse or hyperbola to its semi-transverse axis.

The ratio of the distance of the center of the orbit of a heavenly body from the center of the body round which it revolves to the semi-transverse axis of the orbit.

The distance of the center of figure of a body, as of an eccentric, from an axis about which it turns; the throw.

Measures how elliptical the earth-sun orbit is, with consequent effects on solar radiation received by the earth. If e is the eccentricity then (1 + e)/(1 - e) is the ratio of the farthest and closest earth-sun distance.

with symbol e, is an orbital element that defines the shape of an orbit. When eccentricity is 0.0, the orbit is circular, 1.0 the orbit is parabolic.

A measure of the flatness of an ellipse, defined as half the distance between the foci divided by the semi-major axis.

Geometric shape of the Earth's orbit. This shape varies from being elliptical to almost circular.

The state or condition of being eccentric. Deviation from a centre.

The eccentricity is the measure for the deviation of the tube axis of the outside diameter from that of the inner diameter. Eccentricity results from the wall thickness deviation.

The out-of-roundness of a roll, core, or mandrel. Eccentricity usually is expressed as TIR (total indicated runout) in mils. When eccentricity is present, points on the roll surface do not rotate in the same axial circle.

a parameter that specifies the shape of a conic section; one of the standard elements used to describe an elliptic orbit. (See elements, orbital.)

The ratio between the foci and major axis of an ellipse. It can be used to describe the shape of the ellipse.

the degree of flattening of an ellipse and how much it deviates from a circular shape. With reference to the orbit of a planet, the distance between the center of its orbit and the center of the primary about which it revolves.

A measure of the shape of the orbit of a body or ellipse that compares the lengths of the semimajor axis (longest length) and semiminor axis (shortest length). The eccentricity of a circle is zero, while a highly elliptical orbital path of a comet might be 0.9.

Deviation from a common center, for example, the inner and outer walls of a round tube. The difference between the mean wall thickness and minimum or maximum wall thickness at any one cross section. The permissible degree of eccentricity can be expressed by a plus and minus wall-thickness tolerance.

The degree to which the Earth's orbit around the sun varies from a perfect circle - it ranges between about 1% and 5% across a 100,000 year cycle.

a circularity that has a different center or deviates from a circular path

is the departure of an elliptical orbit from a circle. A circle has an eccentricity of 0; a very elongated orbit has an eccentricity approaching 1. The eccentricity of Pluto's orbit has the largest value of all the planets (0.248). The Ecliptic is the plane of the Earth's orbit. Most of the planetary orbits are close to this plane. Pluto's orbit is inclined at an angle of 17.14 degrees to the ecliptic plane - the largest deviation of any planet.

The eccentricity of an orbit is a measure of its departure from a circle. Elliptical orbits have an eccentricity 0 and 1, parabolic paths have an eccentricity =1, and hyperbolic paths have an eccentricity 1.

A measure of how far as orbit diverges from a circle, that is how elliptical it is.

Measure of the departure of an orbit from a perfect circle. A circular orbit has eccentricity, e = 0; an elliptic orbit has 0 e 1; a parabolic orbit has e = 1; and a hyperbolic orbit has e 1.

A measure of the lack of coincidence of longitudinal axes of a circular cross-sectional wire and its surrounding circular cross-sectional insulation. It is expressed as the percentage ratio of the distance between wire and insulation centers to the difference between wire and insulation radii.

a measure of the flatness of an ellipse; a ratio of the distance between foci divided by the length of the major axis

The eccentricity measures the relation between maximum distance a ( Aphelion) and minimum distance b ( Perihelion) of an elliptical orbit. The eccentricity measures how far from a circular shape an elliptic orbit is. Eccentricity e = âˆš(aÂ² - bÂ²) / a.

The degree of flattening of an ellipse, measured from 0 to 1. An ellipse with an eccentricity of 0 is a circle. Celestial objects in orbits with large eccentricities (close to 1.0) have highly flattened or elongated orbits.

the extent to which a bodyâ€(tm)s elliptical orbit deviates from a circle

Description of the shape of a satellite's orbit. A circular orbit has an eccentricity of 0.0, the closer to 1.0 the eccentricity, the more elliptical an orbit is. Most artificial satellite orbits have an eccentricity less than 0.01, essentially circular.

Off centre or out of round condition, such as a roller or cylinder which does not rotate evenly.

A measure of the flatness of an ellipse, equal to the distance between the two foci divided by the length of the major axis.

The amount of separation between the two foci of an ellipse and, hence, the degree to which an elliptical orbit deviates from a circular shape.

a parameter that describes the shape of an orbit; the closer the eccentricity is to zero, the more circular the orbit

Variation in radius of an information track from the true axis of rotation of the disc. May be confused with runout.

The eccentricity of an ellipse (orbit) is the ratio of the distance between its foci and the major axis. The greater the eccentricity, the more 'flattened' is the ellipse.

A measure of the center of a conductor's location with respect to the circular cross-section of the insulation surrounding it, expressed as a percentage of center displacement of one circle within the other.

A measure of the shape of an ellipse, defined as the ratio of the distance between the foci and the length of the major axis. Smaller values indicate greater ellipse elongation or 'out-of-roundness.'

The normal distance between the centroidal axis of a member and the parallel resultant load.: Ratio of virtual eccentricities occurring at the ends of a column or wall under design. The absolute value is always less than or equal to 1.0.

One of six Keplerian elements, it describes the shape of an orbit. In the Keplerian orbit model, the satellite orbit is an ellipse, with eccentricity defining the "shape" of the ellipse. When e=0, the ellipse is a circle. When e is very near 1, the ellipse is very long and skinny.

a dimensionless quantity describing the elliptical shape of a planet's orbit

deviation from circular

The amount that the earth's revolution deviates from a circular path; the variation of an ellipse from a circle, where a circle has an eccentricity of 0.

Mathematically, the ratio of the distance between the foci of an ellipse, compared to the major axis of the ellipse. For planetary orbits, the variation in distance of a planet from the Sun, expressed as a decimal fraction of the average distance from the Sun. Equal to the distance from the center of the orbit to the Sun, expressed as a fraction of the semi-major axis of the orbit. A planet whose eccentricity is .20 would be 20% closer to the Sun at perihelion, than on the average, and 20% further away at aphelion, than on the average.

Eccentricity is a measure of how an orbit deviates from circular. A perfectly circular orbit has an eccentricity of zero; an eccentricit between0 and 1 represents an elliptical orbit. A parabolic orbit has an eccentricity equal to 1; a hyperbolic orbit has an eccentricity greater than 1. Neptune, Venus, and Earth are the planets with the least eccentric orbits in our solar system. Pluto and Mercury are the planets with the most eccentric orbits in our solar system.

When two diameters share a common center they are said to be concentric. Deviations from theoretical or perfect concentricity are called eccentricity.

A measure of the shape of an ellipse, such as the orbit of a body around a center of mass, that compares the lengths of the semimajor, or longest, axis and the semiminor, or shortest, axis. The eccentricity of a circle is zero, while a highly elliptical orbital path of a comet might be 0.9.

() The measure of how elliptical or circular is an orbit. The eccentricity is equal to (1-b²/a²)1/2, where and are the major and minor axes of the elliptical orbit. Circular orbits have e=0, elliptical orbits have 0<e<1, radial and parabolic orbits have e=1, and hyperbolic orbits have e>1.

measure of the oblateness of an elliptic orbit, sometimes called "ellipticity" ; it is the ratio between the distance of a focus of the ellipse from the centre and the major semiaxis. The eccentricity of a circumference equals zero.

Refers to a factor used to describe the geometric shape of an ellipsis or an elliptical orbit. As eccentric approaches 0 the shape approaches that of a circle as eccentricity approaches 1 the shape approaches a straight line.

The measure of the degree to which an ellipse is not circular; ratio of the distance between the foci to the major axis. The greater the eccentricity, the more 'flattened' is the ellipse.

A measure of how much an elliptical orbit deviates from circular. Referenced in: Interactive Solar System

A value that defines the shape of an ellipse or planetary orbit; the ratio of the distance between the foci and the major axis.

The distance from the application of a structural load to the axis or centroid of the carrying member.

measures how far from a circular shape an ellipse is. Numerically, the eccentricity = 1 -- (perihelion / semi-major axis). The eccentricity = 0 for a circle and = nearly one (1) for very long, skinny ellipses.

The orbital parameter used to describe the geometric shape of an elliptical orbit; eccentricity values vary from (e = 0) to (e = 1), where (0) describes a circle and (1) describes a straight line

One of the six classical orbital elements. For a particular satellite's orbit, the eccentricity is a constant that defines the orbit's shape. For a circular orbit, = 0. The overwhelming majority of satellite orbits, however, are elliptical in shape with 0

Eccentricity is a measure of how circular a satellite's orbit is. For a perfectly circular orbit the eccentricity is zero; elliptical orbits have eccentricities between zero and one. The higher the eccentricity, the more "squashed" the orbit is.

In an ellipse, the numerical ratio of the distance of the focus from the center of the ellipse to the length of the semimajor axis.

The distance between the resultant of an applied load and the centroidal axis of the masonry element under load.

In mathematics, eccentricity is a parameter associated with every conic section. It can be thought of as a measure of how much the conic section deviates from being circular. (Or, in lay men's terms, how "not round" it is.)

**Related Terms:**Concentricity, Eccentric, Radial, Concentric, Light center length, Ellipse, Major axis, Rotate, Centroid, Eccentricity, Circle, Rotation, Oblate spheroid, Radius vector, Minor axis, Spiral, Sphere, Semimajor axis, Lcl , Stationary point, Center of gravity, Inclination, Roll , Angle, Semi-major axis, Phase angle, Radius, Angle of incidence, Center, Pitch, Incidence angle, Cylinder, Paraboloid, Attitude, Arc, Tumble , Ellipticity, Diameter, Polar coordinates, Centre , Axis of rotation, Apsis, Midpoint, Yaw, Central angle, Orbital plane, Radial balance, Ellipsoid, Turn

As applied to tubular products, the center of the inside diameter differs from the center of the outside diameter indicating wall variation. This is a problem associated with seamless tubing.

In High Intensity Discharge lamps the Bulb to Arc Angle is the angle off of center between electrodes and bulb. The Bulb to Base Angle is the angle off of center that the bulb is from the base.

A characteristic of seamless tubing in which wall thickness is not consistent throughout the tube.

Sometimes called concentricity, eccentricity in a rotary device is the deviation of the center of rotation from its mean position as the device turns.

The degree of difference between the centers of a fastener's surface at different points.

The degree of difference between the centers of the surface of a bolt at different points.

A method of distinction so cheap that fools employ it to accentuate their incapacity.

strange and unconventional behavior

A ratio used in some definitions of conic sections.