The Sun's angular diameter, as observed from Earth, is approximately 0.5°. This is based on Earth's average distance of 93 million miles (150 million km) from the Sun. From Mercury, at an average ...
The angular field of view (often called FOV) is a measure of the angular size for an image produced by a camera. Different cameras have different FOV. But who cares, right? I care. I care because it ...