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(100020) 1990 QH4

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(100020) 1990 QH4

Summary

(100020) 1990 QH4 is an asteroid[1]. (100020) 1990 QH4 ranks in the top 2% of asteroid entities by monthly Wikipedia readership (1 views/month).[2]

Key Facts

  • (100020) 1990 QH4 is credited with the discovery of Henry E. Holt[3].
  • (100020) 1990 QH4's instance of is recorded as asteroid[4].
  • (100020) 1990 QH4's site of astronomical discovery is recorded as Palomar Observatory[5].
  • (100020) 1990 QH4 followed 100019 Gregorianik[6].
  • (100020) 1990 QH4 was followed by (100021) 1990 QV7[7].
  • (100020) 1990 QH4's minor planet group is recorded as asteroid belt[8].
  • (100020) 1990 QH4's parent astronomical body is recorded as Sun[9].
  • (100020) 1990 QH4's provisional designation is recorded as 1990 QH4[10].
  • (100020) 1990 QH4's provisional designation is recorded as 2000 QG28[11].
  • (100020) 1990 QH4's time of discovery or invention is recorded as August 23, 1990[12].
  • (100020) 1990 QH4's orbital eccentricity is recorded as {'amount': '+0.1900749404121487'}[13].
  • (100020) 1990 QH4's absolute magnitude is recorded as {'amount': '+16.2'}[14].
  • (100020) 1990 QH4's orbital inclination is recorded as {'unit': 'Q28390', 'amount': '+4.480672602056133'}[15].
  • (100020) 1990 QH4's orbital period is recorded as {'unit': 'Q573', 'amount': '+1212.153717688378'}[16].
  • (100020) 1990 QH4's longitude of ascending node is recorded as {'unit': 'Q28390', 'amount': '+346.6185606968068'}[17].
  • (100020) 1990 QH4's semi-major axis of an orbit is recorded as {'unit': 'Q1811', 'amount': '+2.224877892224651'}[18].
  • (100020) 1990 QH4's apoapsis is recorded as {'unit': 'Q1811', 'amount': '+2.647771425013558'}[19].
  • (100020) 1990 QH4's periapsis is recorded as {'unit': 'Q1811', 'amount': '+1.801984359435743'}[20].
  • (100020) 1990 QH4's argument of periapsis is recorded as {'unit': 'Q28390', 'amount': '+358.6650948761096'}[21].
  • (100020) 1990 QH4's mean anomaly is recorded as {'unit': 'Q28390', 'amount': '+215.0830204101197'}[22].
  • (100020) 1990 QH4's diameter is recorded as {'unit': 'Q828224', 'amount': '+3.577'}[23].
  • (100020) 1990 QH4's albedo is recorded as {'amount': '+0.077'}[24].
  • (100020) 1990 QH4's epoch is recorded as November 21, 2025[25].
  • (100020) 1990 QH4's time of periapsis is recorded as {'unit': 'Q14267', 'amount': '+2461488.449043239'}[26].

Body

Designation and Status

(100020) 1990 QH4's instance of is recorded as asteroid[4].

Why It Matters

(100020) 1990 QH4 ranks in the top 2% of asteroid entities by monthly Wikipedia readership (1 views/month).[2]

References

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

Direct Wikidata claims

  1. [4] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  2. [3] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  3. [5] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  9. [11] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  10. [12] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  11. [13] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  12. [14] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  13. [15] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  14. [16] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  15. [17] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  16. [18] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  17. [19] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  18. [20] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  19. [21] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  20. [22] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  21. [23] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  22. [24] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  23. [25] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  24. [26] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.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). (100020) 1990 QH4. Retrieved May 3, 2026, from https://4ort.xyz/entity/100020-1990-qh4
MLA “(100020) 1990 QH4.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/100020-1990-qh4.
BibTeX @misc{4ortxyz_100020-1990-qh4_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(100020) 1990 QH4}}, year = {2026}, url = {https://4ort.xyz/entity/100020-1990-qh4}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (100020) 1990 QH4 — https://4ort.xyz/entity/100020-1990-qh4 (retrieved 2026-05-03)

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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. 22d ago · KaleemBot bot · 2026-05-15 view diff on Wikidata ↗
    Time of periapsis → {'unit': 'Q14267', 'amount': '+2461488.449043239'}
    Epoch → November 21, 2025
    Orbital inclination → {'unit': 'Q28390', 'amount': '+4.480672602056133'}
    Aliases → —
    + 21 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ Added [[wikipedia:ur:(100020) 1990 کیو ایچ 4]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.