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●rrgfe of rofractlon-The angle whkh the
refracted ray makes with the normal to lhe
wrtacs separating two tranaparem rnedii.
engle of Ult--see Wt.
●glo 01 vtaw+JCS) 1. The engle between
two raya paastng !hmugh the persfmcfiie canter
(rear ncdal poim) of a camera fens to two
ooooslte aarnem of the format. 2. In
MIL-HDBK-850
●ecsmslon; Screen ●ngle; sidereal hour
sngle; ●lope ●n@e: eolld engle;
●pherlcal ●ng la; apheroldal ●ngla;
trsrvarse angla; vectorial angle; vertical
●ngle; zenith dletance.
●nuular altltude-A maaaura in dagreas 0( a
given objecf above the horfzon, taken from a
given or aswmed polnf 01 observation, end
expressad by the angle between the horizontal
and Ihe observers line of sight.
p%togramrnatry, fw”w the arrgfa whose tarxgem
is one-haff the length of the diagonal of the angulfir calibration conatent-in a
format diviieci by the calibrated focal length. AlSO MUffiple-lenS camera, or IXUJffiplS~MSra
called covarhrg powa~ field of view. assembly, the vatues of angular orientation of
the lens axes of the sevaral lens-camera unita to
angle O! yaw-The arrgla between a line in the a common reference line. For example, in a
direcfbn of ffiiht ard a plane through the trfrnstrogon camera, the angular relalbnshfps of
longitudinal and vertical axes of an aircraft. It is the wing sanrara axis with respect to the axis of
mnsidered odsifive if the nose is disolaced to the Ihe central (verficaf) Camera.
right. Also ~lled yaw ●ngle.
anoular dletence-1. The anoular difference
angle point—A term appfied to a marker al befieen two diradona, numerically equal to the
each poim to Indkate a change In the direction angle between hvo lines axfending In the given
0! a suwey line. directions. 2. The arc of the great circle joining
two ooints, exoressed in annular units. 3.
angle to right-The horizontal angle Dtstance between two poinf=, expressed In
measured clockwise frem the precediW line to angular units of a specifiad frequency. tf is equal
the tolbwirrg one, AlSO called clockwlse angle .“to f.~e..nu~! oj.wa~es bev.een f.~e Points
angle-to-right traverse-in surveying, a
technique applicable to either open or closed
travemes, wherain all anglea are measured in a
CtOCkwiSedirection attar the transit has been
oriemad by a backeigfrr to the precedhtg ssatiin.
angle-The incfinafion fo each other of two
intersecting fines, measured by the arc of a circle
imemxptad between the two finas forming the
angfe, the center of the circle belmJ the point of
hxtersecfion. See also adJW3ttMJ angle;
nltltude: ●zlmuttr; azimuth angle; break
angle; convaralon ●ngle;
countarclockwlee ●nale: concluded
angle; crab angle; crltlcal angle;
crossing ●ngle; detlectlon ●ngle;
dihedral angle; dlp angle; direct engle;
direction ●ngle; dlatance angle; double
zenith dlatance; drlff angle; EulerIan
angles; Greanwlch hour angla; grid
magnetic ●ngle; horizontal angle; hour
angle; Interlocking angle; 10cal hour
●ngle; Iocklng ●nole; look ●nglaa;
meaaured ●ngle; merldlan angle;
obllque ascenelon: observed angle;
parallactlc ●ngla; phaae angle;
reciprocal varflcal angle; refraction
angle; rapetltion of angfas; rloht
Muniplied by 2rI if expressad in radians, or
multiplied by 360° if expressed in degrees.
angular distortion-l. (cartography)
IXstotilon in a map projection because of
rronconfomxafity. 2. (optics) The failure of a lens
to reproduce accurately in the image apace the
angle subtended by two pJinte in the object
space.
angular error of closure-See arror of
closure, definition 2.
angular tlald—See angle of Iiald.
angular magnlflcatlon—The ratio of the
ar@e subtended at the eye by fhe image formed
by an optical device, to the engle subtended af
the eye by the object Itseff wkhoul the optical
device. This is mnvenient where a distance in
the objeci cannot be measured tor expressing a
finear magnification, as In using a telescope.
angular momentum—The quantlly otrtalned
by multiplying the rmment of inertia of a body by
Its angular epaed.
angular perellax—See engle of
convergence.
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