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(42491) 1991 TF

minor planet
Place asteroid Q4543380
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(42491) 1991 TF

Summary

(42491) 1991 TF is an asteroid[1].

Key Facts

  • (42491) 1991 TF is credited with the discovery of Robert H. McNaught[2].
  • (42491) 1991 TF's instance of is recorded as asteroid[3].
  • (42491) 1991 TF's site of astronomical discovery is recorded as Siding Spring Observatory[4].
  • (42491) 1991 TF followed (42490) 1991 SU[5].
  • (42491) 1991 TF was followed by 42492 Brüggenthies[6].
  • (42491) 1991 TF's minor planet group is recorded as asteroid belt[7].
  • (42491) 1991 TF's parent astronomical body is recorded as Sun[8].
  • (42491) 1991 TF's provisional designation is recorded as 1991 TF[9].
  • (42491) 1991 TF's provisional designation is recorded as 2002 EM147[10].
  • (42491) 1991 TF's time of discovery or invention is recorded as October 1, 1991[11].
  • (42491) 1991 TF's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.2614957619011257'}[12].
  • (42491) 1991 TF's absolute magnitude is recorded as {'unit': '1', 'amount': '+14.96'}[13].
  • (42491) 1991 TF's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+14.63549122869207'}[14].
  • (42491) 1991 TF's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+1573.781876769067'}[15].
  • (42491) 1991 TF's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+173.2598387859114'}[16].
  • (42491) 1991 TF's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.647874569492044'}[17].
  • (42491) 1991 TF's apoapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+3.340282547459981'}[18].
  • (42491) 1991 TF's periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+1.955466591524107'}[19].
  • (42491) 1991 TF's argument of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+199.2952714141958'}[20].
  • (42491) 1991 TF's mean anomaly is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+332.2201899662446'}[21].
  • (42491) 1991 TF's epoch is recorded as November 21, 2025[22].
  • (42491) 1991 TF's time of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q14267', 'amount': '+2461121.942671031'}[23].

Body

Designation and Status

(42491) 1991 TF's instance of is recorded as asteroid[3].

References

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

Direct Wikidata claims

  1. [3] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  2. [2] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  3. [4] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  7. [8] ↑ . wikidata.org.
  8. [9] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  9. [10] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  10. [11] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  11. [12] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  12. [13] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  13. [14] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  14. [15] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  15. [16] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  16. [17] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  17. [18] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  18. [19] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  19. [20] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  20. [21] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  21. [22] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  22. [23] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: 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). (42491) 1991 TF. Retrieved May 3, 2026, from https://4ort.xyz/entity/-42491-1991-tf
MLA “(42491) 1991 TF.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/-42491-1991-tf.
BibTeX @misc{4ortxyz_-42491-1991-tf_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(42491) 1991 TF}}, year = {2026}, url = {https://4ort.xyz/entity/-42491-1991-tf}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (42491) 1991 TF — https://4ort.xyz/entity/-42491-1991-tf (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. 17d ago · KaleemBot bot · 2026-05-19 view diff on Wikidata ↗
    Instance of → asteroid
    Orbital eccentricity → {'unit': '1', 'amount': '+0.2614957619011257'}
    Minor planet center body id → 42491
    Freebase id → /m/0h647x8
    + 23 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ Added [[wikipedia:ur:(42491) 1991 ٹی ایف]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.