AZIMUTH – AFSIA

Azimuth solar

There are several conventions for the solar azimuth; however, it is traditionally defined as the angle between a line due south and the shadow cast by a vertical rod on Earth. This convention states the angle is positive if the shadow is east of south and negative if it is west of south. For example, due east would be 90° and due west. The solar azimuth angle is the (horizontal angle with respect to north) of the . This defines the 's along the local , whereas the (or its A 2021 publication presents a method that uses a solar azimuth formula based on the and the function, as defined in , that gives an unambiguous solution without the need for circumstantial treatment. The subsolar point is the point on the. The following formulas assume the north-clockwise convention. The solar azimuth angle can be calculated to a good approximation with the following formula, however angles should be interpreted with care because the , i.e. x = sin y or x = arcsin y, has. • • • with VBA functions for solar azimuth, solar elevation, dawn, sunrise, solar noon, sunset, and.