Angular distance or angular separation is the measure of the angle between the orientation of two straight lines, rays, or vectors in three-dimensional...

}}} angular similarity = S θ := 1 − angular distance = 1 − θ π {\displaystyle {\text{angular similarity}}=S_{\theta }:=1-{\text{angular distance}}=1-{\frac...

In astronomy, angular diameter distance is a distance (in units of length) defined in terms of an object's physical size (also in units of length), x...

(SI-symbol mrad, sometimes also abbreviated mil) is an SI derived unit for angular measurement which is defined as a thousandth of a radian (0.001 radian)...

to have a high resolution or high angular resolution, it means that the perceived distance, or actual angular distance, between resolved neighboring objects...

This corresponds to 0.3 m at a 1 km distance, or to perceiving Venus as a disk under optimal conditions. The angular diameter of a circle whose plane is...

navigation, lunar distance, also called a lunar, is the angular distance between the Moon and another celestial body. The lunar distances method uses this...

definition of power: power = force ⋅ linear distance time = ( torque r ) ⋅ ( r ⋅ angular speed ⋅ t ) t = torque ⋅ angular speed . {\displaystyle...

physics, angular acceleration (symbol α, alpha) is the time rate of change of angular velocity. Following the two types of angular velocity, spin angular velocity...

infinitesimal rotations are applied is irrelevant. Angular distance Angular frequency Angular position Angular velocity Azimuth Infinitesimal rotation Linear...

although still about 10° from either star. It was about the same angular distance from β UMi as to α UMi by the end of late antiquity. The Greek navigator...

the angular distance of the Moon relative Earth or the natural satellite of another planet from its central planet, for instance the angular distance of...

astrological interest. As viewed from Earth, aspects are measured by the angular distance in degrees and minutes of ecliptic longitude between two points. According...

sextant is a doubly reflecting navigation instrument that measures the angular distance between two visible objects. The primary use of a sextant is to measure...

equatorial coordinate system Σ(α, δ) in astronomy, polar distance (PD) is an angular distance of a celestial object on its meridian measured from the celestial...

In physics, angular frequency (symbol ω), also called angular speed and angular rate, is a scalar measure of the angle rate (the angle per unit time)...

Euclidean space with its usual notion of distance. Other well-known examples are a sphere equipped with the angular distance and the hyperbolic plane. A metric...

the three angular distances. In an altitude-azimuth grid the angular distance between the observed pointing and the Sun and the angular distance between...

position of that body in the classical two-body problem. It is the angular distance from the pericenter which a fictitious body would have if it moved...

because of their angular width. The location of the observed object plays an important role, making it visible or not even from a small distance. The best visible...

The great-circle distance, orthodromic distance, or spherical distance is the distance between two points on a sphere, measured along the great-circle...

in the International System of Units (SI) and is the standard unit of angular measure used in many areas of mathematics. It is defined such that one...

the transverse comoving distance the "angular size distance", which is not to be mistaken for the angular diameter distance. Occasionally, the symbols...

the direction of reference for measuring the zenith angle (or zenith angular distance), the angle between a direction of interest (e.g. a star) and the local...

of the angular distance between the Sun and Moon before conjunction (syzygy). The New Moon tithi (called Pratipada or Prathama) is the 12 angular degrees...

orbital angular velocity. Angular velocity has dimension of angle per unit time; this is analogous to linear velocity, with angle replacing distance, with...

declination symbol δ, (lower case "delta", abbreviated DEC) measures the angular distance of an object perpendicular to the celestial equator, positive to the...

Range of motion (or ROM) is the linear or angular distance that a moving object may normally travel while properly attached to another. In biomechanics...

particle and its distance from origin. The spin angular momentum vector of a rigid body is proportional but not always parallel to the spin angular velocity vector...

smaller. Distance is the angular separation between the planets in sixtieths of a degree (minutes of arc) and elongation is the angular distance from the...