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C/1999 A1 (Tilbrook)

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C/1999 A1 (Tilbrook)

Summary

C/1999 A1 (Tilbrook) is a periodic comet[1].

Key Facts

  • C/1999 A1 (Tilbrook) is credited with the discovery of Justin Tilbrook[2].
  • C/1999 A1 (Tilbrook)'s instance of is recorded as periodic comet[3].
  • C/1999 A1 (Tilbrook)'s instance of is recorded as non-periodic comet[4].
  • C/1999 A1 (Tilbrook)'s time of discovery or invention is recorded as +1999-01-12T00:00:00Z[5].
  • C/1999 A1 (Tilbrook)'s JPL Small-Body Database SPK-ID is recorded as 1000247[6].
  • C/1999 A1 (Tilbrook)'s orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.9958948892732364'}[7].
  • C/1999 A1 (Tilbrook)'s absolute magnitude is recorded as {'unit': '1', 'amount': '+14.3'}[8].
  • C/1999 A1 (Tilbrook)'s orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+89.4817884541915'}[9].
  • C/1999 A1 (Tilbrook)'s orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+867474.4237319994'}[10].
  • C/1999 A1 (Tilbrook)'s longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+259.1230023961218'}[11].
  • C/1999 A1 (Tilbrook)'s semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+178.0077188596875'}[12].
  • C/1999 A1 (Tilbrook)'s apoapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+355.2846963232374'}[13].
  • C/1999 A1 (Tilbrook)'s periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+0.7307413961376154'}[14].
  • C/1999 A1 (Tilbrook)'s argument of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+232.6698624941882'}[15].
  • C/1999 A1 (Tilbrook)'s mean anomaly is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+359.9959921889022'}[16].
  • C/1999 A1 (Tilbrook)'s Google Knowledge Graph ID is recorded as /g/1s066wspv[17].
  • C/1999 A1 (Tilbrook)'s epoch is recorded as January 20, 1999[18].
  • C/1999 A1 (Tilbrook)'s time of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q14267', 'amount': '+2451208.1574267293'}[19].

Body

Works and Contributions

C/1999 A1 (Tilbrook) is credited with the discovery of Justin Tilbrook[2].

References

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

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  3. [2] ↑ . wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . JPL Small-Body Database. Retrieved . wikidata.org.
  6. [7] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  7. [8] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: 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] ↑ . 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.

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). C/1999 A1 (Tilbrook). Retrieved May 3, 2026, from https://4ort.xyz/entity/c-1999-a1-tilbrook-
MLA “C/1999 A1 (Tilbrook).” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/c-1999-a1-tilbrook-.
BibTeX @misc{4ortxyz_c-1999-a1-tilbrook-_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{C/1999 A1 (Tilbrook)}}, year = {2026}, url = {https://4ort.xyz/entity/c-1999-a1-tilbrook-}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): C/1999 A1 (Tilbrook) — https://4ort.xyz/entity/c-1999-a1-tilbrook- (retrieved 2026-05-03)

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