What Does GHA Stand For?
GHA stands for Greenwich Hour Angle
GHA, or Greenwich Hour Angle, is a celestial navigation term that refers to the angular distance, measured in time, between the Greenwich meridian and a celestial object. It is used to determine the position of objects in the sky relative to the observer's location, facilitating accurate navigation and timekeeping. The GHA is expressed in degrees or hours and is essential for calculating local sidereal time and for the proper use of various astronomical and navigational tools.
Added on 14th April 2008 | Last edited on 16th June 2025 | Edit Acronym