An Etymological Dictionary of Astronomy and Astrophysics

The → angular distance from the → North point eastward to the intersection of the → horizon with the → vertical circle passing through the object. Azimuth is 0° for an object due north, 90° due east, 180° due south, and 270° due west. → Altitude and azimuth constitute
the → horizon coordinate system.

Etymology (EN): From O.Fr. azimut, from Ar. as-sumut (السمت) “the directions, ways,” pl. of as-samt “the direction, way.”

Etymology (PE): Sugân, from su “direction” + -gân direction suffix.

The → angular distance from the → North point eastward to the intersection of the → horizon with the → vertical circle passing through the object. Azimuth is 0° for an object due north, 90° due east, 180° due south, and 270° due west. → Altitude and azimuth constitute
the → horizon coordinate system.

Etymology (EN): From O.Fr. azimut, from Ar. as-sumut (السمت) “the directions, ways,” pl. of as-samt “the direction, way.”

Etymology (PE): Sugân, from su “direction” + -gân direction suffix.

One of great circles of the → celestial sphere which passes through the → zenith, → nadir, and the star, cutting the horizon at right angles. Same as → vertical circle.

See also: → azimuth; → circle.

One of great circles of the → celestial sphere which passes through the → zenith, → nadir, and the star, cutting the horizon at right angles. Same as → vertical circle.

See also: → azimuth; → circle.

Or, or pertaining to an → azimuth.

See also: → azimuth + → -al.

Or, or pertaining to an → azimuth.

See also: → azimuth + → -al.

In → spherical coordinates, an angle measured from the x-axis in the xy-plane.

See also: Azimuthal, adj. from azimuth; → angle.

In → spherical coordinates, an angle measured from the x-axis in the xy-plane.

See also: Azimuthal, adj. from azimuth; → angle.

In the → solar dynamo model, a magnetic field that points from east to west or vice-versa.

See also: → azimuthal; → magnetic; → field.

In the → solar dynamo model, a magnetic field that points from east to west or vice-versa.

See also: → azimuthal; → magnetic; → field.

A map projection on which the → azimuths of all points are shown correctly with respect to the center. A plane tangent to one of the Earth’s poles is the basis for polar azimuthal projection.

See also: → azimuthal; → projection.

A map projection on which the → azimuths of all points are shown correctly with respect to the center. A plane tangent to one of the Earth’s poles is the basis for polar azimuthal projection.

See also: → azimuthal; → projection.

In quantum mechanics, a quantum number that distinguishes the different shapes of the orbitals.

Etymology (EN): Azimuthal, adj. from → azimuth; → quantum number.

In quantum mechanics, a quantum number that distinguishes the different shapes of the orbitals.

Etymology (EN): Azimuthal, adj. from → azimuth; → quantum number.