angular width

USAGE SUMMARY

The phrase "angular width" is correct and usable in written English.
It can be used in contexts related to geometry, astronomy, or optics to describe the apparent size of an object as viewed from a specific point. Example: "The angular width of the moon as seen from Earth is about half a degree."

✓ Grammatically correct

Science

Academia

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

56 human-written examples

By this method, we achieve beams with angular width 18° or narrower, and transmission matching classical ballistic predictions.

Stanford University

The internally-driven self-expansion is limited to the heliocentric radial direction, so that the CME maintains constant angular width, as is commonly observed1.

Nature

These include rate of detection, apparent angular width, detected mass, apparent speed, and apparent latitude.

Advances in Space Research

The strahl angular width, defined as the width in pitch angle at half maximum, varies from 20 degrees at 100 eV to 10 degrees at 500 eV, approximately.

Massachusetts Institute of Technology

The lens, considered as a circular aperture with diameter D, produces a two-dimensional diffraction pattern with a central intensity maximum of angular width about λ/D.

Encyclopedia Britannica

Angular width refers to the angle, measured in radians, that is defined by the two intensity minima on either side of the central maximum.

Encyclopedia Britannica

The test bed is especially suited for measurements of angular width of detection zones of various PIR sensors.

Infrared Physics & Technology

Human-verified similar examples from authoritative sources

Similar Expressions

4 human-written examples

The angular widths were measured using the SOHO/LASCO observations.

Advances in Space Research

The flux ropes with small inclination were associated with CMEs with small angular widths.

Advances in Space Research

This tendency was used for estimation of the real angular widths of the halo CMEs.

Advances in Space Research

Correlation coefficients for speeds and angular widths are 0.99 and 0.96, respectively.

Advances in Space Research

Expert writing Tips

Best practice

When describing the spread of light or other radiation, use "angular width" to provide a precise measurement of the divergence.

Common error

Avoid using "angular width" when a linear measurement is more appropriate. "Angular width" describes an angle, not a physical distance.

Linguistic Context

The phrase "angular width" functions as a noun phrase, typically serving as a modifier to describe a characteristic of an object or phenomenon. It indicates the extent of something in terms of an angle. Ludwig provides numerous examples where it specifies the spread of beams or the size of coronal mass ejections.

Expression frequency: Very common

Frequent in

Science

65%

Academia

20%

Encyclopedias

5%

Less common in

News & Media

4%

Formal & Business

1%

Wiki

0.5%

Ludwig's WRAP-UP

The phrase "angular width" is a grammatically sound and frequently employed term, particularly within scientific and academic domains. As confirmed by Ludwig, its primary function is to quantify the apparent size or extent of an object or region from a specific viewpoint. The phrase's formality reflects its prevalence in precise, objective contexts. Common usage involves describing the spread of beams, the dimensions of celestial events like coronal mass ejections, or the characteristics of optical components. When employing "angular width", ensure it accurately describes an angle rather than a linear distance, and consider alternatives such as "angular size" or "field of view" to better suit the specific context.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

angular size

A general term referring to the size of an object measured as an angle.

angular diameter

Refers to the diameter of a circular object measured as an angle from a particular viewpoint.

angular subtense

Emphasizes the angle that an object appears to span from a specific viewpoint.

beam divergence

Specifically used in the context of beams (e.g., light or particle beams) to indicate the extent to which the beam spreads out.

angle of divergence

Focuses on the spreading of something from a central point, emphasizing the angle formed.

divergence angle

Similar to angle of divergence, but with a different word order, maintaining the emphasis on spreading.

field of view

Describes the extent of what is visible from a certain point, implying a range of angles.

cone angle

Describes the angle of a cone, often used when referring to the spread of light or other radiation.

viewing angle

Refers to the angle from which something is observed, highlighting the observer's perspective.

apparent size

Focuses on how large an object appears to be, influenced by its distance and actual size.

FAQs

How is "angular width" measured?

Angular width is typically measured in degrees or radians, representing the angle subtended by an object or feature at the point of observation.

What is a synonym for "angular width"?

Depending on the context, synonyms for "angular width" include "angular size", "field of view", or "angle of divergence".

In what fields is the term "angular width" commonly used?

The term "angular width" is frequently used in astronomy, optics, physics, and computer vision to describe the apparent size or extent of objects or features.

How does distance affect the "angular width" of an object?

As the distance to an object increases, its "angular width" decreases, meaning it appears smaller from the observer's perspective.