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1999 WH18

asteroid
Thing asteroid Q15189803

Facts

23 properties
Instance of
asteroid
Follows
1996 XB14[3]
Followed by
1999 WJ19[4]
Absolute magnitude
+15.81[11]
Albedo
+0.07[21]
Apoapsis
+2.699014162308879[16]
Argument of periapsis
+81.16546778535047[18]
Diameter
+3.818[20]
Discoverer or inventor
Korado Korlević[1]
Epoch
November 21, 2025[22]
Longitude of ascending node
+69.05286157507823[14]
Mean anomaly
+4.077019115077116[19]
Minor planet group
asteroid belt[5]
Orbital eccentricity
+0.1469474992051302[10]
Orbital inclination
+10.26379236979345[12]
Orbital period
+1318.532575137483[13]
Parent astronomical body
Sun[6]
Periapsis
+2.00741601724054[17]
Provisional designation
2001 KH27, 1999 WH18[7][8]
Semi-major axis of an orbit
+2.35321508977471[15]
Site of astronomical discovery
Višnjan Observatory[2]
Time of discovery or invention
November 29, 1999[9]
Time of periapsis
+2460985.567548576[23]
🏷️ Also known as
ru 1999 WH18 ru 2001 KH27 zh 小行星75245
🔖 Identifiers · 2
JPL Small-Body Database SPK-ID
20075245
Minor Planet Center body ID
75245

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References

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

Direct Wikidata claims

  1. [1] ↑ . 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. [3] ↑ . wikidata.org.
  4. [4] ↑ . wikidata.org.
  5. [5] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  6. [6] ↑ . wikidata.org.
  7. [7] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  8. [8] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  9. [9] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  10. [10] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  11. [11] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  12. [12] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  13. [13] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  14. [14] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  15. [15] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  16. [16] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  17. [17] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  18. [18] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  19. [19] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  20. [20] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  21. [21] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  22. [22] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  23. [23] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.

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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). 1999 WH18. Retrieved October 29, 2026, from https://4ort.xyz/entity/q15189803
MLA “1999 WH18.” 4ort.xyz Knowledge Graph, 4ort.xyz, 29 Oct. 2026, https://4ort.xyz/entity/q15189803.
BibTeX @misc{4ortxyz_q15189803_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{1999 WH18}}, year = {2026}, url = {https://4ort.xyz/entity/q15189803}, note = {Accessed: 2026-10-29}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 1999 WH18 — https://4ort.xyz/entity/q15189803 (retrieved 2026-10-29)

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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. 21w ago · LiMrBot bot · 2026-06-06 view diff on Wikidata ↗
    Apoapsis → {'unit': 'Q1811', 'amount': '+2.699014162308879'}
    Provisional designation → 2001 KH27, 1999 WH18
    JPL Small-Body Database SPK-ID → 20075245
    Diameter → {'unit': 'Q828224', 'amount': '+3.818'}
    + 22 other properties edited (see Wikidata diff for full list)
    "/* wbremoveclaims-remove:1| */ Orbital eccentricity: 0.1474968953165594±0.0000000017726"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.