|Azimuth and solar elevation angle|
Calculation of azimuth and solar elevation angle by given the coordinates and time of observation. It's possible to input coordinates manually or by selecting from the directory of cities.
|Course angle and the distance between the two points on loxodrome (rhumb line).|
Calculation of a distance on loxodrome (rhumb line) and course angle (azimuth) between two points with a given geographical coordinates.
|Course angles and distance between the two points on the orthodrome(great circle)|
Calculates the distance between two points of the Earth specified geodesic (geographical) coordinates along the shortest path - the great circle (orthodrome). Calculates the initial and final course angles and azimuth at intermediate points between the two given.
|Sun position at a given date. Azimuth and elevation table.|
Calculation of azimuth and elevation of the sun above the horizon for a given position and time. Table with one hour increments.
|Two arguments arctangent|
The calculator gives an angle between positive axis x and the ray to the given point from point 0. The result corresponds to atan2 function, implemented in many computer languages and math libraries.
|City objects observation|
The calculator helps to distinguish observed city objects.