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4905 Hiromi

asteroid
Place asteroid Q1043898

Facts

25 properties

Identity

Instance of
asteroid
More facts +24
Follows
4904 Makio[5]
Followed by
4906 Seneferu[6]
Absolute magnitude
12.2, 12.29[23]
Albedo
0.212
Apoapsis
3.041, 3.039123069248521
Argument of periapsis
176.23611, 176.054434685851
Diameter
8.374
Discoverer or inventor
Atsushi Takahashi, Kazurō Watanabe[2][3]
Epoch
November 21, 2025
Longitude of ascending node
198.40616, 198.3309569007651
Mean anomaly
120.91478, 325.0687884722866
Minor planet group
asteroid belt[7]
Orbital eccentricity
0.17 (0.17–0.17, n=3)[20][21][22]
Orbital inclination
12.42642, 12.42994601261546
Orbital period
4.19, 1532.602706317786
Parent astronomical body
Sun[8]
Periapsis
2.1594494, 2.163840318075829
Provisional designation
1929 SB, 1950 TE4, 1971 TV, 1974 HA3, 1978 GG4, 1978 JV3, 1988 VU4, 1991 JM1, A908 SF[9][10][11][12][13][14][15][16][17]
Rotation period
6.0428
Semi-major axis of an orbit
2.6002131, 2.601481693662175
Significant event
naming[19]
Site of astronomical discovery
Kitami Observatory[4]
Time of discovery or invention
May 15, 1991[18]
Time of periapsis
2461149.210192562
🏷️ Also known as
en 4905 Hiromi en Hiromi en (4905) Hiromi de Hiromi es Hiromi fa سیارک ۴۹۰۵ fa سیارک 4905 fr Hiromi pt Hiromi ru (4905) Hiromi ru (4905) Хироми ru A908 SF ru Hiromi ru Хироми ru 1978 GG4 ru 1929 SB ru 1950 TE4 ru 1971 TV ru 1974 HA3 ru 1978 JV3
🔖 Identifiers · 3
Freebase ID
/m/03y3qh8
JPL Small-Body Database SPK-ID
20004905
Minor Planet Center body ID
4905

Report an error or request removal Lineage (PROV-JSON)

🔗 Connections
Discoverer or inventor 2
Kazurō Watanabe, Atsushi Takahashi
Epoch 1
November 21, 2025
Instance of 1
asteroid
Minor planet group 1
asteroid belt
Parent astronomical body 1
Sun
Site of astronomical discovery 1
Kitami Observatory
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Summary

4905 Hiromi is an asteroid[1].

References

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

Direct Wikidata claims

  1. [2] ↑ . Minor Planet Center database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  2. [3] ↑ . Minor Planet Center 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] ↑ . Minor Planet Center database. wikidata.org.
  5. [6] ↑ . Minor Planet Center database. wikidata.org.
  6. [7] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  7. [8] ↑ . wikidata.org.
  8. [9] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  9. [10] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  10. [11] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  11. [12] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: 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] ↑ . wikidata.org.
  19. [20] ↑ . wikidata.org.
  20. [21] ↑ . minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
  21. [22] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  22. [23] ↑ . minorplanetcenter.net. minorplanetcenter.net. 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). 4905 Hiromi. Retrieved November 4, 2026, from https://4ort.xyz/entity/4905-hiromi
MLA “4905 Hiromi.” 4ort.xyz Knowledge Graph, 4ort.xyz, 4 Nov. 2026, https://4ort.xyz/entity/4905-hiromi.
BibTeX @misc{4ortxyz_4905-hiromi_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{4905 Hiromi}}, year = {2026}, url = {https://4ort.xyz/entity/4905-hiromi}, note = {Accessed: 2026-11-04}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 4905 Hiromi — https://4ort.xyz/entity/4905-hiromi (retrieved 2026-11-04)

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