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C/1987 P1 (Bradfield)

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C/1987 P1 (Bradfield)

Summary

C/1987 P1 (Bradfield) is a non-periodic comet[1]. C/1987 P1 (Bradfield) draws 1 Wikipedia views per month (non_periodic_comet category, ranking #35 of 92).[2]

Key Facts

  • C/1987 P1 (Bradfield)'s instance of is recorded as non-periodic comet[3].
  • C/1987 P1 (Bradfield)'s JPL Small-Body Database SPK-ID is recorded as 1000550[4].
  • C/1987 P1 (Bradfield)'s orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.9947371258513271'}[5].
  • C/1987 P1 (Bradfield)'s absolute magnitude is recorded as {'unit': '1', 'amount': '+6.0'}[6].
  • C/1987 P1 (Bradfield)'s orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+34.08806680570367'}[7].
  • C/1987 P1 (Bradfield)'s orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+774927.2958111527'}[8].
  • C/1987 P1 (Bradfield)'s longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+268.0929240765895'}[9].
  • C/1987 P1 (Bradfield)'s semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+165.11062492845'}[10].
  • C/1987 P1 (Bradfield)'s apoapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+329.3522934172927'}[11].
  • C/1987 P1 (Bradfield)'s periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+0.8689564396071634'}[12].
  • C/1987 P1 (Bradfield)'s argument of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+73.89961063595888'}[13].
  • C/1987 P1 (Bradfield)'s mean anomaly is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+0.01009297136866273'}[14].
  • C/1987 P1 (Bradfield)'s Google Knowledge Graph ID is recorded as /g/11b5m4wvlc[15].
  • C/1987 P1 (Bradfield)'s epoch is recorded as November 29, 1987[16].
  • C/1987 P1 (Bradfield)'s time of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q14267', 'amount': '+2447106.774113863'}[17].

Why It Matters

C/1987 P1 (Bradfield) draws 1 Wikipedia views per month (non_periodic_comet category, ranking #35 of 92).[2]

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. [4] ↑ . JPL Small-Body Database. Retrieved . wikidata.org.
  3. [5] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  4. [6] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  5. [7] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  6. [8] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  7. [9] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: 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] ↑ . 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.

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). C/1987 P1 (Bradfield). Retrieved October 4, 2026, from https://4ort.xyz/entity/c-1987-p1-bradfield-
MLA “C/1987 P1 (Bradfield).” 4ort.xyz Knowledge Graph, 4ort.xyz, 4 Oct. 2026, https://4ort.xyz/entity/c-1987-p1-bradfield-.
BibTeX @misc{4ortxyz_c-1987-p1-bradfield-_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{C/1987 P1 (Bradfield)}}, year = {2026}, url = {https://4ort.xyz/entity/c-1987-p1-bradfield-}, note = {Accessed: 2026-10-04}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): C/1987 P1 (Bradfield) — https://4ort.xyz/entity/c-1987-p1-bradfield- (retrieved 2026-10-04)

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