Angular distance or angular separation is the measure of the angle between the orientation of two straight lines, rays, or vectors in three-dimensional...
6 KB (1,178 words) - 19:22, 4 November 2023
Cosine similarity (redirect from Cosine distance)
}}} angular similarity = S θ := 1 − angular distance = 1 − θ π {\displaystyle {\text{angular similarity}}=S_{\theta }:=1-{\text{angular distance}}=1-{\frac...
22 KB (3,069 words) - 15:40, 28 October 2024
In astronomy, angular diameter distance is a distance defined in terms of an object's physical size, x {\displaystyle x} , and its angular size, θ {\displaystyle...
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The angular diameter, angular size, apparent diameter, or apparent size is an angular distance describing how large a sphere or circle appears from a given...
26 KB (1,863 words) - 20:17, 24 October 2024
to have a high resolution or high angular resolution, it means that the perceived distance, or actual angular distance, between resolved neighboring objects...
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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...
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the transverse comoving distance the "angular size distance", which is not to be mistaken for the angular diameter distance. Occasionally, the symbols...
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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)...
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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...
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navigation, lunar distance, also called a lunar, is the angular distance between the Moon and another celestial body. The lunar distances method uses this...
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Torque (redirect from Angular force)
definition of power: power = force ⋅ linear distance time = ( torque r ) ⋅ ( r ⋅ angular speed ⋅ t ) t = torque ⋅ angular speed . {\displaystyle...
31 KB (4,358 words) - 13:49, 30 October 2024
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...
8 KB (1,076 words) - 17:41, 25 October 2024
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...
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infinitesimal rotations are applied is irrelevant. Angular distance Angular frequency Angular position Angular velocity Azimuth Infinitesimal rotation Linear...
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Milliradian (redirect from Angular mils)
(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)...
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Metric space (redirect from Distance function)
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...
80 KB (11,081 words) - 20:23, 15 September 2024
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...
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Zenith (redirect from Zenith distance)
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...
7 KB (750 words) - 03:11, 4 November 2024
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...
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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...
22 KB (3,157 words) - 10:00, 28 June 2024
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...
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astrological interest. As viewed from Earth, aspects are measured by the angular distance in degrees and minutes of ecliptic longitude between two points. According...
36 KB (3,171 words) - 14:29, 23 October 2024
the three angular distances. In an altitude-azimuth grid the angular distance between the observed pointing and the Sun and the angular distance between...
27 KB (4,058 words) - 17:45, 29 March 2024
Look up angular in Wiktionary, the free dictionary. Angular may refer to: Angular artery, the terminal part of the facial artery Angular bone, a large...
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orbital angular velocity. Angular velocity has dimension of angle per unit time; this is analogous to linear velocity, with angle replacing distance, with...
17 KB (2,565 words) - 23:18, 2 November 2024
The great-circle distance, orthodromic distance, or spherical distance is the distance between two points on a sphere, measured along the great-circle...
13 KB (1,908 words) - 16:29, 11 October 2024
Parsec (section Distances in parsecs)
distance of 61 Cygni. The parallax of a star is defined as half of the angular distance that a star appears to move relative to the celestial sphere as Earth...
27 KB (3,094 words) - 07:43, 25 October 2024
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...
38 KB (4,589 words) - 20:35, 20 October 2024
Right ascension (abbreviated RA; symbol α) is the angular distance of a particular point measured eastward along the celestial equator from the Sun at...
14 KB (1,371 words) - 01:10, 25 October 2024