Photometric system

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Science and technology

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What Wikipedia says

In astronomy, a photometric system is a set of well-defined passbands (or optical filters), with a known sensitivity to incident radiation. The sensitivity usually depends on the optical system, detectors and filters used. For each photometric system a set of primary standard stars is provided.

Excerpt from the Wikipedia article “Photometric system”, under the CC BY-SA 4.0 license. Read the article on Wikipedia