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646 Kastalia

main-belt asteroid
Place Asteroid Q156114

Facts

25 properties

Identity

Instance of
asteroid
More facts +24
Follows
645 Agrippina[4]
Followed by
647 Adelgunde[5]
Absolute magnitude
12.63[13]
Albedo
0.269
Apoapsis
2.822109112528459[20]
Argument of periapsis
38.25785171036023
Diameter
8.153
Discoverer or inventor
August Kopff[2]
Epoch
November 21, 2025
Longitude of ascending node
302.7533367274888[18]
Mean anomaly
131.4440959385163
Minor planet group
asteroid belt[6]
Orbital eccentricity
0.2134391932308169[12]
Orbital inclination
6.912, 6.90494988616797[14][15]
Orbital period
1295.484141877971[16]
Parent astronomical body
Sun[7]
Periapsis
1.829313271504666[21]
Provisional designation
1907 AC, A907 RL[8][9]
Rotation period
3.1259[17]
Semi-major axis of an orbit
2.325711192016563[19]
Significant event
naming[11]
Site of astronomical discovery
Heidelberg-Königstuhl State Observatory[3]
Time of discovery or invention
September 11, 1907[10]
Time of periapsis
2460527.489606023
🏷️ Also known as
en 646 Kastalia en (646) Kastalia en Kastalia de 646 Kastalia el 646 Κασταλία es 646 Kastalia fa سیارک ۶۴۶ fr 646 Kastalia fr Kastalia ja カスタリア (小惑星646番) pt (646) Kastalia ru 1907 AC ru (646) 1907 AC ru (646) Kastalia ru (646) Касталия ru A907AC ru Kastalia ru Касталия uk 646 Касталія zh 小行星646
🔖 Identifiers · 3
Freebase ID
/m/08lywy
JPL Small-Body Database SPK-ID
20000646
Minor Planet Center body ID
646

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

🔗 Connections
Awarded to 1
Castalia
Discoverer or inventor 1
August Kopff
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
Heidelberg-Königstuhl State Observatory
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Summary

646 Kastalia is an asteroid[1].

Related Entities

August Kopff

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] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  3. [4] ↑ . Minor Planet Center database. wikidata.org.
  4. [5] ↑ . Minor Planet Center database. wikidata.org.
  5. [6] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . JPL Small-Body Database. 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] ↑ . 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] ↑ . 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.

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). 646 Kastalia. Retrieved November 8, 2026, from https://4ort.xyz/entity/646-kastalia
MLA “646 Kastalia.” 4ort.xyz Knowledge Graph, 4ort.xyz, 8 Nov. 2026, https://4ort.xyz/entity/646-kastalia.
BibTeX @misc{4ortxyz_646-kastalia_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{646 Kastalia}}, year = {2026}, url = {https://4ort.xyz/entity/646-kastalia}, note = {Accessed: 2026-11-08}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 646 Kastalia — https://4ort.xyz/entity/646-kastalia (retrieved 2026-11-08)

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