Angular eccentricity is one of many parameters which arise in the study of the ellipse or ellipsoid. It is denoted here by α (alpha). It may be defined...

mathematics, the eccentricity of a conic section is a non-negative real number that uniquely characterizes its shape. One can think of the eccentricity as a measure...

the eccentricity. Radial orbits have zero angular momentum and hence eccentricity equal to one. Keeping the energy constant and reducing the angular momentum...

In celestial mechanics, the eccentricity vector of a Kepler orbit is the dimensionless vector with direction pointing from apoapsis to periapsis and with...

is a Kepler orbit with an eccentricity of less than 1; this includes the special case of a circular orbit, with eccentricity equal to 0. In a stricter...

investment Cronbach's alpha, a statistical measure of reliability Angular eccentricity (conventional symbol "α") Navigational azimuth (symbol "α") One of...

preserve energy but not angular momentum; expressed another way, orbits of the same energy but different angular momentum (eccentricity) can be transformed...

specific relative angular momentum (often denoted h → {\displaystyle {\vec {h}}} or h {\displaystyle \mathbf {h} } ) of a body is the angular momentum of that...

\alpha =\arccos \left({\frac {c}{a}}\right)} is the modular angle, or angular eccentricity; m = b 2 − c 2 b 2 sin ⁡ ( α ) 2 {\textstyle m={\frac...

→ 0 {\displaystyle \Omega \rightarrow 0} . The maximum angular velocity occurs at eccentricity e = 0.92996 {\displaystyle e=0.92996} and its value is...

effect of bringing mass closer to its centre of gravity. Conservation of angular momentum dictates that a mass distributed more closely around its centre...

"elegant" and Smiley's performance "unbeatable" whereas Lynch "has an angular eccentricity that suits the role perfectly" and Webster "wields the sort of cheekbones...

speed nor the angular speed of the planet in the orbit is constant, but the area speed (closely linked historically with the concept of angular momentum)...

sufficient gravitational force. Radial orbit: An orbit with zero angular momentum and eccentricity equal to 1. The two objects move directly towards or away...

applied to the body. In torque-free precession, the angular momentum is a constant, but the angular velocity vector changes orientation with time. What...

Milutin Milanković. In the 1920s, he hypothesized that variations in eccentricity, axial tilt, and precession combined to result in cyclical variations...

{\displaystyle e} is the eccentricity, not Euler's number. If instead we use polar coordinates with the origin at one focus, with the angular coordinate θ = 0...

an angular parameter that defines the position of a body that is moving along an elliptic Kepler orbit. The eccentric anomaly is one of three angular parameters...

The field of view (FOV) is the angular extent of the observable world that is seen at any given moment. In the case of optical instruments or sensors...

E2/(E2+E), where E is eccentricity in degrees visual angle, and E2 is a constant of approximately 2 degrees. At 2 degrees eccentricity, for example, acuity...

In orbital mechanics, mean motion (represented by n) is the angular speed required for a body to complete one orbit, assuming constant speed in a circular...

mean anomaly represents uniform angular motion on a circle of radius a. Mean anomaly can be calculated from the eccentricity and the true anomaly f by finding...

two-body, Keplerian orbital mechanics, the equation of the center is the angular difference between the actual position of a body in its elliptical orbit...

When it is near the star the planet loses angular momentum causing its orbit to shrink. The planet's eccentricity and inclination cycle repeatedly, slowing...

{\displaystyle f={\frac {a-c}{a}}=1-{\frac {c}{a}}.} The first eccentricity (usually simply eccentricity, as above) is often used instead of flattening. It is...

acceleration causes the satellite to spiral outward with a decreasing speed and angular rate, resulting in a negative acceleration of angle. A continuing negative...

axis, the orbital period is the same, disregarding their eccentricity. The specific angular momentum h of a small body orbiting a central body in a circular...

necessarily of uniform length, except in the case of the circle, which has eccentricity e = 0. {\displaystyle e=0.} The symbol or variable for diameter, ⌀, is...

talent for witty, innovative choreography." His "signature blend of angular eccentricity and willowy grace," his "inventiveness and clarity of thought and...

axis, which defines the size of the orbit e {\displaystyle e} is the eccentricity, which defines the shape of the orbit θ {\displaystyle \theta } is the...