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140 Siwa

main-belt asteroid
Place Asteroid Q209472

Facts

28 properties

Identity

Instance of
asteroid
More facts +27
Follows
139 Juewa[5]
Followed by
141 Lumen[6]
Absolute magnitude
8.45[16]
Albedo
0.068, 0.0676
Apoapsis
3.325711271151017
Argument of periapsis
197.1734151315564
Asteroid spectral type
P-type asteroid, X-type asteroid[12][13]
Diameter
109.79
Discoverer or inventor
Johann Palisa[2]
Epoch
November 21, 2025
Longitude of ascending node
107.0762542229501
Mass
1.4[19]
Mean anomaly
221.3131260446437
Minor planet group
asteroid belt[7]
Named after
Živa[4]
Orbital eccentricity
0.2179542564637294[15]
Orbital inclination
3.187, 3.191291073942648[17][18]
Orbital period
1648.081840318323[20]
Parent astronomical body
Sun[8]
Periapsis
2.13543187687994
Provisional designation
1948 AL, A874 TB[9][10]
Rotation period
34.445[21]
Semi-major axis of an orbit
2.730571574015479
Significant event
naming[14]
Site of astronomical discovery
Pula Observatory[3]
Time of discovery or invention
October 13, 1874[11]
Time of periapsis
2461635.409217934
🏷️ Also known as
en (140) Siwa en 140 Siwa en Siwa ar ١٤٠ سيوة ar 140 سيوة de 1948 AL el 140 Σίβα es 140 Siwa fa سیارک ۱۴۰ fa سیارک 140 fr 140 Siwa fr Siwa ja シワ ru (140) Жива ru (140) Siwa ru 1948 AL ru Siwa ru Жива th 140 Siwa th 140 ชีวา
🔖 Identifiers · 4
Freebase ID
/m/037gdf
JPL Small-Body Database SPK-ID
20000140
Minor Planet Center body ID
140
Wolfram Language entity code
Entity["MinorPlanet", "Siwa"]

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

🔗 Connections
Asteroid spectral type 2
P-type asteroid, X-type asteroid
Discoverer or inventor 1
Johann Palisa
Epoch 1
November 21, 2025
Followed by 1
141 Lumen
Followed by (predecessor) 1
141 Lumen
Follows 1
139 Juewa
Instance of 1
asteroid
Minor planet group 1
asteroid belt
Named after 1
Živa
Parent astronomical body 1
Sun
Preceded by (successor) 1
139 Juewa
Site of astronomical discovery 1
Pula Observatory
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Summary

140 Siwa is an asteroid[1].

Related Entities

Johann Palisa

References

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

Direct Wikidata claims

  1. [2] ↑ . 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. [4] ↑ . Dictionary of Minor Planet Names (Sixth Revised and Enlarged Edition). 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] ↑ . 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] ↑ . wikidata.org.
  17. [18] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  18. [19] ↑ . 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). 140 Siwa. Retrieved November 10, 2026, from https://4ort.xyz/entity/140-siwa
MLA “140 Siwa.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Nov. 2026, https://4ort.xyz/entity/140-siwa.
BibTeX @misc{4ortxyz_140-siwa_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{140 Siwa}}, year = {2026}, url = {https://4ort.xyz/entity/140-siwa}, note = {Accessed: 2026-11-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): 140 Siwa — https://4ort.xyz/entity/140-siwa (retrieved 2026-11-10)

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