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(39821) 1998 AH7

minor planet
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(39821) 1998 AH7

Summary

(39821) 1998 AH7 is an asteroid[1]. (39821) 1998 AH7 has Wikipedia articles in 5 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • (39821) 1998 AH7 is credited with the discovery of Beijing Schmidt CCD Asteroid Program[3].
  • (39821) 1998 AH7's instance of is recorded as asteroid[4].
  • (39821) 1998 AH7's site of astronomical discovery is recorded as Xinglong Station[5].
  • (39821) 1998 AH7 followed (39820) 1997 YV17[6].
  • (39821) 1998 AH7 was followed by (39822) 1998 BO[7].
  • (39821) 1998 AH7's minor planet group is recorded as asteroid belt[8].
  • (39821) 1998 AH7's parent astronomical body is recorded as Sun[9].
  • (39821) 1998 AH7's provisional designation is recorded as 1998 AH7[10].
  • (39821) 1998 AH7's provisional designation is recorded as 1999 KN18[11].
  • (39821) 1998 AH7's time of discovery or invention is recorded as January 5, 1998[12].
  • (39821) 1998 AH7's orbital eccentricity is recorded as {'amount': '+0.15'}[13].
  • (39821) 1998 AH7's orbital eccentricity is recorded as {'amount': '+0.1513735'}[14].
  • (39821) 1998 AH7's orbital eccentricity is recorded as {'amount': '+0.1508487818946274'}[15].
  • (39821) 1998 AH7's absolute magnitude is recorded as {'amount': '+15.4'}[16].
  • (39821) 1998 AH7's absolute magnitude is recorded as {'amount': '+15.52'}[17].
  • (39821) 1998 AH7's orbital inclination is recorded as {'unit': 'Q28390', 'amount': '+4.26970'}[18].
  • (39821) 1998 AH7's orbital inclination is recorded as {'unit': 'Q28390', 'amount': '+4.267901709765161'}[19].
  • (39821) 1998 AH7's orbital period is recorded as {'unit': 'Q577', 'amount': '+3.39'}[20].
  • (39821) 1998 AH7's orbital period is recorded as {'unit': 'Q573', 'amount': '+1236.20350944625'}[21].
  • (39821) 1998 AH7's longitude of ascending node is recorded as {'unit': 'Q28390', 'amount': '+80.26122'}[22].
  • (39821) 1998 AH7's longitude of ascending node is recorded as {'unit': 'Q28390', 'amount': '+80.23195374038507'}[23].
  • (39821) 1998 AH7's semi-major axis of an orbit is recorded as {'unit': 'Q1811', 'amount': '+2.2545355'}[24].
  • (39821) 1998 AH7's semi-major axis of an orbit is recorded as {'unit': 'Q1811', 'amount': '+2.254209955828091'}[25].
  • (39821) 1998 AH7's apoapsis is recorded as {'unit': 'Q1811', 'amount': '+2.596'}[26].
  • (39821) 1998 AH7's apoapsis is recorded as {'unit': 'Q1811', 'amount': '+2.5942547817995'}[27].

Body

Designation and Status

(39821) 1998 AH7's instance of is recorded as asteroid[4].

Why It Matters

(39821) 1998 AH7 has Wikipedia articles in 5 language editions, a strong signal of global cultural recognition.[2]

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] ↑ . 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] ↑ . wikidata.org.
  12. [14] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  13. [15] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: 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] ↑ . 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). (39821) 1998 AH7. Retrieved May 3, 2026, from https://4ort.xyz/entity/39821-1998-ah7
MLA “(39821) 1998 AH7.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/39821-1998-ah7.
BibTeX @misc{4ortxyz_39821-1998-ah7_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(39821) 1998 AH7}}, year = {2026}, url = {https://4ort.xyz/entity/39821-1998-ah7}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (39821) 1998 AH7 — https://4ort.xyz/entity/39821-1998-ah7 (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. 12d ago · KaleemBot bot · 2026-05-26 view diff on Wikidata ↗
    Albedo → {'amount': '+0.065'}
    Orbital inclination → {'unit': 'Q28390', 'amount': '+4.26970'}, {'unit': 'Q28390', 'amount': '+4.267901709765161'}
    Apoapsis → {'unit': 'Q1811', 'amount': '+2.596'}, {'unit': 'Q1811', 'amount': '+2.5942547817995'}
    Discoverer or inventor → Beijing Schmidt CCD Asteroid Program
    + 21 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ Added [[wikipedia:ur:(39821) 1998 اے ایچ 7]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.