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tropical year

period of time for the ecliptic longitude of the Sun to increase 360°
Class type of: year Q189607
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Summary

tropical year is an unit of time[1]. It is a type of year[2].

Key Facts

  • Instance of: UCUM derived unit[3], solar year[4], type of year[5]
  • Measured physical quantity: duration[6]
  • Described by source: The Nuttall Encyclopædia[7]
  • Different from: Tropenjaar[8], sidereal year[9]
  • Conversion to standard unit: 31556925.1 seconds[10]

References

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

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [5] ↑ . wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [2] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . wikidata.org.
  8. [9] ↑ . wikidata.org.
  9. [10] ↑ . Astronomical Almanac for the Year 2017. wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. 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). tropical year. Retrieved November 2, 2026, from https://4ort.xyz/entity/tropical-year
MLA “tropical year.” 4ort.xyz Knowledge Graph, 4ort.xyz, 2 Nov. 2026, https://4ort.xyz/entity/tropical-year.
BibTeX @misc{4ortxyz_tropical-year_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{tropical year}}, year = {2026}, url = {https://4ort.xyz/entity/tropical-year}, note = {Accessed: 2026-11-02}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): tropical year — https://4ort.xyz/entity/tropical-year (retrieved 2026-11-02)

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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 10h ago · MatSuBot bot · 2026-11-02 view diff on Wikidata ↗
    Different from → Tropenjaar, sidereal year
    Wikipedia languages → ['af', 'ar', 'az', 'be', 'be_x_old', 'bg', 'bh', 'ca', 'commons', 'cs', 'de', 'e
    Described by source → The Nuttall Encyclopædia
    Sitelink count → 62
    + 8 other properties edited (see Wikidata diff for full list)
    "/* wbsetlabel-add:1|bho */ ट्रॉपिकल साल, import labels from sitelinks"
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