👉 Astrophotometry is a branch of astronomy that studies the light emitted by stars and other celestial objects. It involves measuring the angle between the line-of-sight from an object to our eye and the angle at which it reflects off another object, such as a planet or moon. The term "astrophotometrical" refers to the use of astrophotometry in astronomy to measure the angles between the lines of sight to stars. This is often done using telescopes with large apert
