The Zenith Angle information

The solar zenith angle is the zenith angle of the sun, i.e., the angle between the sun’s rays and the vertical direction. It is the complement to the...

measuring the zenith angle (or zenith angular distance), the angle between a direction of interest (e.g. a star) and the local zenith - that is, the complement...

The Zenith Angle is a science fiction novel by American writer Bruce Sterling, first published in 2004, about a pioneering expert in computer and network...

and the cost-effective use of solar trackers. The solar zenith angle is the zenith angle of the sun, i.e., the angle between the sun’s rays and the vertical...

the observer is elevated, the horizon zenith angle can be greater than 90°. The maximum visible zenith angle occurs when the ray is tangent to Earth's...

relative direction along the local horizon, whereas the solar zenith angle (or its complementary angle solar elevation) defines the Sun's apparent altitude...

axis, or zenith direction axis, or z-axis); the polar angle θ of the radial line r; and the azimuthal angle φ of the radial line r. The polar angle θ is measured...

={\begin{bmatrix}\rho \\\angle \theta \\\angle \phi \end{bmatrix}}} Where ρ is the magnitude, θ is the azimuth angle, and φ is the zenith angle. Like polar and...

instead of altitude, as they are complementary angles (the sum of the altitude angle and the zenith angle is 90°). "(Az,El) co-ordinate system". W.M. Keck...

celestial navigation, the hour angle is the dihedral angle between the meridian plane (containing Earth's axis and the zenith) and the hour circle (containing...

the sides of a spherical triangle. C is the angle in the vertex opposite the side which has arc length c. Applied to the calculation of solar zenith angle...

geometry, an angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle. Angles formed...

of the cloud and the solar zenith angle. The variation of albedo with zenith angle is most rapid when the sun is near the horizon, and least when the sun...

astronomy, the parallactic angle is the angle between the great circle through a celestial object and the zenith, and the hour circle of the object. It...

is the angle between the zenith direction and the solar direction at the observed pointing, and ψ is the angle between the solar direction and the observed...

determine the total atmospheric delay, is its known dependence of the zenith or elevation angle of the satellite. If z {\displaystyle z} is the zenith angle, the...

2π steradians of a hemisphere decreased by integration over the cosine of the zenith angle. Radiance of a surface, denoted Le,Ω ("e" for "energetic", to...

small zenith angles, the Chapman function for optical absorption is equal to sec ⁡ ( z ) ,   {\displaystyle \sec(z),\ } where z is the zenith angle and...

{\partial ^{2}f}{\partial \varphi ^{2}}},} where φ represents the azimuthal angle and θ the zenith angle or co-latitude. In general curvilinear coordinates (ξ1...

horizontal alignment. The vertical circle measures the angle that the telescope makes against the vertical, known as the zenith angle. The horizontal circle...

the zenith angle corresponding to the given path. Therefore, T = e − τ = e − m τ ′ {\displaystyle T=e^{-\tau }=e^{-m\tau '}} The optical depth of the...

used to calculate the solar zenith angle and solar azimuth angle as observed from the surface of the Earth. Start by calculating n, the number of days (positive...

south of the zenith, the angle to the zenith is equal to the Latitude minus the Declination. The star is hidden from sight when the zenith angle is 90°...

novel The Zenith Angle, which follows the story of a hacker whose life is changed by the September 11 attacks, as "nowpunk". The developers of the computer...

is the airmass given by A M = 1 cos ⁡ θ {\displaystyle AM={\frac {1}{\cos \theta }}} with θ being the zenith angle (90° minus the altitude) of the sun...