In addition, Bacon was the first to calculate the angular size of the rainbow.

The angular size of the object was estimated at 20 arcminutes.

With high enough temporal resolution even the angular size of the background star can be determined.

However, this estimate was based upon an inaccurate guess of the planet's angular size.

One experiment was to estimate the angular size of the Sun, as seen from the Earth.

Given the angular size of this structure it must be fairly close to the spacecraft.

Humans use a variety of techniques beyond angular size to perceive depth.

Manipulating angular size allows the man to appear small enough to fit in the coffee cup.

Example: The angular size of the full moon is 0.5 .

For example, the Hubble space telescope can reach an angular size of stars down to about 0.1".