photometry

American  

[foh-tom-i-tree] / foʊˈtɒm ɪ tri /

noun

1. the measurement of the intensity of light or of relative illuminating power.

2. the science dealing with such measurements.

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photometry British  

/ ˌfəʊtəˈmɛtrɪk, fəʊˈtɒmɪtrɪ /

noun

1. the measurement of the intensity of light

2. the branch of physics concerned with such measurements

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photometry Scientific  

/ fō-tŏm′ĭ-trē /

1. The measurement of the intensity, brightness, or other properties of light.

2. Also called photometrics

3. See also luminous intensity

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Other Word Forms

• photometric adjective
• photometrical adjective
• photometrically adverb
• photometrician noun
• photometrist noun

Etymology

Origin of photometry

From the New Latin word photometria, dating back to 1815–25. See photo-, -metry

Example Sentences

One of the most tried-and-true methods of exoplanet hunting is called transit photometry, which is basically pointing a telescope at a star and measuring the light when a planet swings past.

From Salon

Kepler used a detection method called transit photometry, which looked for periodic, repetitive dips in the visible light of stars caused by planets passing, or transiting, in front of them.

From Reuters

For example, in a seminal paper, neuroscientist Karl Deisseroth and his colleagues at Stanford combined genetics and behavioral tests with a cutting-edge approach called fiber photometry where light can turn on and off specific cells.

From Scientific American

PSF fitting photometry was carried out on each stacked and template-subtracted image.

From Nature

The PSF photometry was calculated, after host galaxy subtraction, and calibrated to a common set of 2MASS44 sources, using the 2MASS zero points to convert to the AB system.

From Nature