photometric
1
7.8
- adjective
- /ˌfoʊtəˈmɛtrɪk/
- Specialized
:
fotométrico
- The scientists used a special device to take photometric measurements of the stars' brightness.
- photometric observations
- photometric precision
- photometric measurements
Examples
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Photometric data in the upper panel are courtesy of the American (AAVSO), French (AFOEV), and Japanese (VSNET) amateur observer groups.
Academic text (2004) -
But there are easier ways—in particular, two photometric methods that look for changes in the brightness of celestial objects.
Academic text (1996) -
For those planets it did find, the mission would give some information about their photometric properties.
Academic text (1996) -
Up to now, there are photometric observations of five objects of very small sizes.
Academic text (2000) -
Apparently, Pickering enjoyed making visual photometric measurements; he made more than one million of them.
Academic text (1991) -
The Kepler mission is still hypothetical, but we have already started to apply the photometric method.
Academic text (1996) -
The second photometric method, the transit method, is the most sensitive method for finding small planets around normal, main-sequence dwarf stars.
Academic text (1996) -
The 100-inch telescope is in use every clear night for adaptive optics, imaging, or photometric studies of stars.
Academic text (1999) -
Large Earth-based telescopes making spectroscopic observations could call on small Earth-based telescopes for complementary photometric observations.
Academic text (1994) -
Above Earth's atmosphere, transit telescopes will stare at crowded star fields, running a time series of high-precision photometric observations and analyses to look for a slight decrease in the brightness of an individual star as a planet passes in front of it.
Academic text (2000)
Synonyms
Relating to measuring the brightness of light
About measuring how strong sunlight is
About measuring how strong sunlight is
Surface Forms
Morphology
photometric = metric (semi-transparent) = photo + metr + ic
The base 'metric' is recognizable, but the resulting term is a technical scientific adjective whose full meaning is not fully obvious to an average learner.
Etymology
Photometric begins with photo- meaning 'light', as in photograph. The ending -metric means 'measure', so photometric is about 'measuring light', which is why it refers to the measurement of light or brightness.