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(391845) 2008 SM257

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(391845) 2008 SM257

Summary

(391845) 2008 SM257 is an asteroid[1].

Key Facts

  • (391845) 2008 SM257 is credited with the discovery of Spacewatch[2].
  • (391845) 2008 SM257's instance of is recorded as asteroid[3].
  • (391845) 2008 SM257's site of astronomical discovery is recorded as Kitt Peak National Observatory[4].
  • (391845) 2008 SM257's minor planet group is recorded as Jupiter trojan[5].
  • (391845) 2008 SM257's minor planet group is recorded as Greek camp trojan asteroid[6].
  • (391845) 2008 SM257's parent astronomical body is recorded as Sun[7].
  • (391845) 2008 SM257's provisional designation is recorded as 2008 SM257[8].
  • (391845) 2008 SM257's time of discovery or invention is recorded as +2008-09-22T00:00:00Z[9].
  • (391845) 2008 SM257's JPL Small-Body Database SPK-ID is recorded as 20391845[10].
  • (391845) 2008 SM257's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.08609468842357701'}[11].
  • (391845) 2008 SM257's Lagrangian point is recorded as L4-Jupiter-Sun[12].
  • (391845) 2008 SM257's absolute magnitude is recorded as {'unit': '1', 'amount': '+13.72'}[13].
  • (391845) 2008 SM257's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+18.2114510486543'}[14].
  • (391845) 2008 SM257's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+4318.009181680148'}[15].
  • (391845) 2008 SM257's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+33.12572444945682'}[16].
  • (391845) 2008 SM257's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+5.189474987597205'}[17].
  • (391845) 2008 SM257's apoapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+5.636261219736332'}[18].
  • (391845) 2008 SM257's periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+4.742688755458077'}[19].
  • (391845) 2008 SM257's argument of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+356.4689102109027'}[20].
  • (391845) 2008 SM257's mean anomaly is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+144.8690597649637'}[21].
  • (391845) 2008 SM257's Google Knowledge Graph ID is recorded as /g/12z655687[22].
  • (391845) 2008 SM257's Minor Planet Center body ID is recorded as 391845[23].
  • (391845) 2008 SM257's epoch is recorded as May 5, 2025[24].
  • (391845) 2008 SM257's time of periapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q14267', 'amount': '+2459062.872416093'}[25].

Body

Designation and Status

(391845) 2008 SM257'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] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  5. [6] ↑ . minorplanetcenter.org. minorplanetcenter.org. Provenance: wikidata.org.
  6. [7] ↑ . 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 . wikidata.org.
  10. [11] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  11. [12] ↑ . 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] ↑ . wikidata.org.
  22. [23] ↑ . wikidata.org.
  23. [24] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  24. [25] ↑ . 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). (391845) 2008 SM257. Retrieved May 3, 2026, from https://4ort.xyz/entity/-391845-2008-sm257
MLA “(391845) 2008 SM257.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/-391845-2008-sm257.
BibTeX @misc{4ortxyz_-391845-2008-sm257_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(391845) 2008 SM257}}, year = {2026}, url = {https://4ort.xyz/entity/-391845-2008-sm257}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (391845) 2008 SM257 — https://4ort.xyz/entity/-391845-2008-sm257 (retrieved 2026-05-03)

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