nothing =)
A BACK AZIMUTH IS A PROJECTION OF THE AZIMUTH FROM THE ORIGIN TO THE OPPOSITE SIDE OF THE AZIMUTH CIRCLE. i.e. THERE ARE 360 DEGREES IN AN AZIMUTH CIRCLE, THUS THE OPPOSITE DIRECTION IS 180 DEGREES.
The point from where an azimuth originates is the center of an imaginary circle.
Azimuth is the angular position of any place with respect to North, measured clockwise.
aha
Azimuth.
Geodetic azimuth is when you measure in a Brunton compass from 0 to 360 degrees clockwise.
azimuth
North azimuth = 0°Southeast azimuth = 135°Difference = 135°
The North American Datum of 1927 (NAD 27) is "Thehorizontal control datum for the United States that (was) defined by (a) location and azimuth on the Clarke spheroid of 1866, with origin at (the survey station) Meades Ranch." ... The geoidal height at Meades Ranch (was) assumed to be zero. "Geodetic positions on the North American Datum of 1927 were derived from the (coordinates of and an azimuth at Meades Ranch) through a readjustment of the triangulation of the entire network in which Laplace azimuths were introduced, and the Bowie method was used." (Geodetic Glossary, pp. 57)
A BACK AZIMUTH IS A PROJECTION OF THE AZIMUTH FROM THE ORIGIN TO THE OPPOSITE SIDE OF THE AZIMUTH CIRCLE. i.e. THERE ARE 360 DEGREES IN AN AZIMUTH CIRCLE, THUS THE OPPOSITE DIRECTION IS 180 DEGREES.
An azimuth thruster is an engine and ship's propeller in a pod which is azimuth adjustable.
To convert a magnetic azimuth to grid azimuth, subtract G-M angle.” If you have a magnetic azimuth of 270 degrees, and the G-M angle is 8 degrees, your grid azimuth will be 262 degrees.
The question lacks proper context. Azimuth refers to a direction, not a distance; moreover, it's not itself a unit, but is usually expressed in degrees, mil, gons, or radians. The usual distances from Earth are expressed either in light-years (9.46 trillion km) or in Astronomical units (149,000,000 km).
The point from where an azimuth originates is the center of an imaginary circle.
You have to convert them to Polar Points or the Azimuth points and use the angle difference.
Azimuth Systems was created in 2002.
RBG-Azimuth was created in 2006.