size, angular

The size of an object measured in terms of the angle it subtends. The point of reference for the eye can be either the nodal point or the centre of the entrance pupil. See extended object; apparent size.
apparent s. 1. The size of an object represented by the angular size. 2. The perceived size of an object as distinguished from the actual size (Fig. S8).
s. constancy See size constancy.
s. lens See aniseikonic lens.

Fig. S8 Objects of different size seen in the same direction and with the same angular size stimulate the same retinal points and thus have the same apparent size

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References in periodicals archive

They are not exactly equal, however, due to the angular size of the sun and atmospheric refraction," it pointed out.

Day and night will have equal length on Sept. 23 -- PAGASA

BOOMERanG discovered the angular size of the largest blobs: one degree, confirming predictions.

SURVEILLING THE UNIVERCE FROM THE SOUTH POLE

For clarity of argumentation, it is important to distinguish between linear size (which can, for example, be measured in centimeters), and angular size. The linear size of a particular object is an objective property that does not change over time.

The role of visual experience in changing the size of objects in imagery processing

At that point, an additional allotment of observing time will continue the search across a field of view roughly the angular size of the full moon.

NASA's Hubble to begin search for Kuiper Belt object beyond Pluto

Also, let's enjoy it while we can - since the Moon's orbit is increasing in size, its angular size is decreasing.

Shedding light on a rare lunar eclipse; Stargazing Heady heady Will tidy up para styles later. Name, Place

If the interpolar distance is equal to angular size of the slot opening, pulsations of torque become aligned; it is done because of constancy of mutual covering areas of stator teeth and rotor poles.

Methods to reduce the cogging torque in permanent magnet synchronous machines

Methods include using high-resolution radio data to extrapolate flux densities of point sources assuming a given EM and angular size (e.g., Perrott et al., this issue) or the use of Ha [5] and/or Radio Recombination Line(s) data [18].

Observations of anomalous microwave emission from HII regions

"We're tired of the catwalks being full of tall, gaunt, angular size zero models.

Who is the alternative model of the year?

Despite the small angular size (3.7" at opposition), a number of observations were made of Uranus' disk and typical results are shown in Figure 3.

Uranus & Neptune: an interim report on the 2010 apparition

Earth's Period of Revolution 365.25636 days Venus' Period of revolution 224.701 days Inclination of Venus' orbit to ecliptic 3.3944[degrees] Angular size of the sun, from Earth 0.534[degrees] Students could be encouraged to engage in some research to locate this information for themselves, via a search of the World Wide Web, or their school library resources, for example.

Modelling and the transit of Venus