brightness

perception of light level
Thing measurand Q221656
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brightness

Summary

brightness is a measurand[1]. brightness ranks in the top 5% of measurand entities by monthly Wikipedia readership (243 views/month).[2]

Key Facts

  • brightness's instance of is recorded as measurand[3].
  • brightness's GND ID is recorded as 4226160-0[4].
  • brightness's part of is recorded as visual perception[5].
  • brightness's Commons category is recorded as Brightness[6].
  • brightness's opposite of is recorded as darkness[7].
  • brightness's BNCF Thesaurus ID is recorded as 28456[8].
  • brightness's Freebase ID is recorded as /m/0b5j8[9].
  • brightness's Art & Architecture Thesaurus ID is recorded as 300056147[10].
  • brightness's Art & Architecture Thesaurus ID is recorded as 300311030[11].
  • brightness's Dewey Decimal Classification is recorded as 523.822[12].
  • brightness's Dewey Decimal Classification is recorded as 152.143[13].
  • brightness's Encyclopædia Britannica Online ID is recorded as topic/brightness-astronomy[14].
  • brightness's Encyclopædia Britannica Online ID is recorded as science/brightness-light[15].
  • brightness's Stack Exchange tag is recorded as https://stackoverflow.com/tags/brightness[16].
  • brightness's has characteristic is recorded as subjectivity[17].
  • brightness's different from is recorded as lightness[18].
  • brightness's different from is recorded as specular reflection[19].
  • brightness's defining formula is recorded as \mu = {R + G + B \over 3 }[20].
  • brightness's Quora topic ID is recorded as Brightness-1[21].
  • brightness's JSTOR topic ID is recorded as brightness[22].
  • brightness's on focus list of Wikimedia project is recorded as Wikipedia:Vital articles/Level/4[23].
  • brightness's maintained by WikiProject is recorded as WikiProject Mathematics[24].
  • brightness's Microsoft Academic ID is recorded as 125245961[25].
  • brightness's Microsoft Academic ID is recorded as 2910841589[26].
  • brightness's Grove Art Online ID is recorded as T011331[27].

Body

Works and Contributions

Things named for brightness include Moon[28], a planetary moon[29], founded in -4527000000[30].

Why It Matters

brightness ranks in the top 5% of measurand entities by monthly Wikipedia readership (243 views/month).[2] brightness has Wikipedia articles in 21 language editions, a strong signal of global cultural recognition.[31] brightness is known by 28 alternative names across languages and contexts.[32]

Entities named for brightness include Moon[28], a planetary moon[29], founded in -4527000000[30].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] . Q87326054. wikidata.org.
  2. [4] . wikidata.org.
  3. [5] . wikidata.org.
  4. [6] . wikidata.org.
  5. [7] . Q87326054. wikidata.org.
  6. [8] . wikidata.org.
  7. [9] . Freebase Data Dumps. wikidata.org.
  8. [10] . wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . Integrated Authority File. Retrieved . wikidata.org.
  11. [13] . Integrated Authority File. Retrieved . wikidata.org.
  12. [14] . wikidata.org.
  13. [15] . wikidata.org.
  14. [16] . wikidata.org.
  15. [17] . wikidata.org.
  16. [18] . wikidata.org.
  17. [19] . wikidata.org.
  18. [20] . wikidata.org.
  19. [21] . Quora. wikidata.org.
  20. [22] . wikidata.org.
  21. [23] . wikidata.org.
  22. [24] . wikidata.org.
  23. [25] . wikidata.org.
  24. [26] . wikidata.org.
  25. [27] . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [28] . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [29] . Wikidata. wikidata.org. → on this site
  2. [30] . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [31] . Wikidata sitelinks. wikidata.org.
  3. [32] . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). brightness. Retrieved May 3, 2026, from https://4ort.xyz/entity/brightness
MLA “brightness.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/brightness.
BibTeX @misc{4ortxyz_brightness_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{brightness}}, year = {2026}, url = {https://4ort.xyz/entity/brightness}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): brightness — https://4ort.xyz/entity/brightness (retrieved 2026-05-03)

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