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(7990) 1981 SN1

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(7990) 1981 SN1

Summary

(7990) 1981 SN1 is an asteroid[1]. (7990) 1981 SN1 ranks in the top 2% of asteroid entities by monthly Wikipedia readership (1 views/month).[2]

Key Facts

  • (7990) 1981 SN1 is credited with the discovery of Norman G. Thomas[3].
  • (7990) 1981 SN1's instance of is recorded as asteroid[4].
  • (7990) 1981 SN1's site of astronomical discovery is recorded as Anderson Mesa Station[5].
  • (7990) 1981 SN1's follows is recorded as 7989 Pernadavide[6].
  • (7990) 1981 SN1's followed by is recorded as 7991 Kaguyahime[7].
  • (7990) 1981 SN1's minor planet group is recorded as asteroid belt[8].
  • (7990) 1981 SN1's parent astronomical body is recorded as Sun[9].
  • (7990) 1981 SN1's provisional designation is recorded as 1981 SN1[10].
  • (7990) 1981 SN1's provisional designation is recorded as 1988 DL2[11].
  • (7990) 1981 SN1's time of discovery or invention is recorded as +1981-09-26T00:00:00Z[12].
  • (7990) 1981 SN1's Freebase ID is recorded as /m/0b758j4[13].
  • (7990) 1981 SN1's JPL Small-Body Database SPK-ID is recorded as 20007990[14].
  • (7990) 1981 SN1's orbital eccentricity is recorded as {'amount': '+0.31'}[15].
  • (7990) 1981 SN1's orbital eccentricity is recorded as {'amount': '+0.3137833'}[16].
  • (7990) 1981 SN1's orbital eccentricity is recorded as {'amount': '+0.3161234297484103'}[17].
  • (7990) 1981 SN1's absolute magnitude is recorded as {'amount': '+13.9'}[18].
  • (7990) 1981 SN1's absolute magnitude is recorded as {'amount': '+14.04'}[19].
  • (7990) 1981 SN1's orbital inclination is recorded as {'unit': 'Q28390', 'amount': '+2.34288'}[20].
  • (7990) 1981 SN1's orbital inclination is recorded as {'unit': 'Q28390', 'amount': '+2.3463678160746'}[21].
  • (7990) 1981 SN1's orbital period is recorded as {'unit': 'Q577', 'amount': '+5.33'}[22].
  • (7990) 1981 SN1's orbital period is recorded as {'unit': 'Q573', 'amount': '+1943.945040610326'}[23].
  • (7990) 1981 SN1's longitude of ascending node is recorded as {'unit': 'Q28390', 'amount': '+144.93027'}[24].
  • (7990) 1981 SN1's longitude of ascending node is recorded as {'unit': 'Q28390', 'amount': '+144.8700933700383'}[25].
  • (7990) 1981 SN1's semi-major axis of an orbit is recorded as {'unit': 'Q1811', 'amount': '+3.0523404'}[26].
  • (7990) 1981 SN1's semi-major axis of an orbit is recorded as {'unit': 'Q1811', 'amount': '+3.048295303629926'}[27].

Body

Designation and Status

(7990) 1981 SN1's instance of is recorded as asteroid[4].

Why It Matters

(7990) 1981 SN1 ranks in the top 2% of asteroid entities by monthly Wikipedia readership (1 views/month).[2] (7990) 1981 SN1 has Wikipedia articles in 8 language editions, a strong signal of global cultural recognition.[28]

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] ↑ . Minor Planet Center database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  9. [11] ↑ . Minor Planet Center 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] ↑ . wikidata.org.
  12. [14] ↑ . JPL Small-Body Database. Retrieved . wikidata.org.
  13. [15] ↑ . wikidata.org.
  14. [16] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  15. [17] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  16. [18] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  17. [19] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  18. [20] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  19. [21] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  20. [22] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  21. [23] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  22. [24] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  23. [25] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  24. [26] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  25. [27] ↑ . 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.
  2. [28] ↑ . Wikidata sitelinks. 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). (7990) 1981 SN1. Retrieved May 3, 2026, from https://4ort.xyz/entity/7990-1981-sn1
MLA “(7990) 1981 SN1.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/7990-1981-sn1.
BibTeX @misc{4ortxyz_7990-1981-sn1_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(7990) 1981 SN1}}, year = {2026}, url = {https://4ort.xyz/entity/7990-1981-sn1}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (7990) 1981 SN1 — https://4ort.xyz/entity/7990-1981-sn1 (retrieved 2026-05-03)

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