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C/2012 S1

comet discovered in 2012, with a close approach to Earth in December 2013
Thing sungrazing_comet Q301109

Facts

16 properties
Instance of
sungrazing comet, hyperbolic comet[3]
Absolute magnitude
+10.2[9]
Argument of periapsis
+345.56449, +345.5411989420559[16][17]
Discoverer or inventor
Vitaly Nevski, Artyom Novichonok[1][2]
Epoch
May 1, 2013[20]
Longitude of ascending node
+295.6865418045648[12]
Mean anomaly
-0.001724780901920006[19]
Orbital eccentricity
+1.0000021, +1.000005095690719[7][8]
Orbital inclination
+62.39925, +62.16289397901024[10][11]
Parent astronomical body
Sun[4]
Periapsis
+0.012444, +0.0124667131396643[14][15]
Periapsis date (DEPRECATED)
2013[18]
Provisional designation
C/2012 S1[5]
Semi-major axis of an orbit
-2446.520761814393[13]
Time of discovery or invention
September 21, 2012[6]
Time of periapsis
+2456625.2645302867[21]
🏷️ Also known as
en C/2012 S1 en Comet ISON ar مذنب آيسون de ISON fa سی/۲۰۱۲ اس۱ hi इसॉन धूमकेतु id C/2012 S1 (ISON) it Cometa ISON ja ISON彗星 ja アイソン彗星 ro cometa ISON ru Комета C/2012 S1
🔖 Identifiers · 7
Image (Wikimedia Commons)
A Unique Hubble View of Comet ISON.jpg ↗
Bing entity ID
cebaaf7d-7801-473d-9f94-0960747caeea
Freebase ID
/m/0n3s_z3
JPL Small-Body Database SPK-ID
1003203
Minor Planet Center body ID
CK12S010
Wolfram Language entity code
Entity["Comet", "CometC2012S1ISON"]
Yle topic ID
18-142354

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

🔗 Connections
Discoverer or inventor 1
Artyom Novichonok
Epoch 1
May 1, 2013
Instance of 1
sungrazing comet
Parent astronomical body 1
Sun
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References

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

Direct Wikidata claims

  1. [3] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  2. [1] ↑ . Post-Discovery Photometric Follow-up of Sungrazing Comet C/2012 S1 ISON. wikidata.org.
  3. [2] ↑ . Post-Discovery Photometric Follow-up of Sungrazing Comet C/2012 S1 ISON. wikidata.org.
  4. [4] ↑ . wikidata.org.
  5. [5] ↑ . wikidata.org.
  6. [6] ↑ . Post-Discovery Photometric Follow-up of Sungrazing Comet C/2012 S1 ISON. wikidata.org.
  7. [7] ↑ . 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] ↑ . 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] ↑ . wikidata.org.
  15. [15] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  16. [16] ↑ . wikidata.org.
  17. [17] ↑ . JPL Small-Body Database. Retrieved . ssd.jpl.nasa.gov. Provenance: wikidata.org.
  18. [18] ↑ . 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.

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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). C/2012 S1. Retrieved November 4, 2026, from https://4ort.xyz/entity/c-2012-s1
MLA “C/2012 S1.” 4ort.xyz Knowledge Graph, 4ort.xyz, 4 Nov. 2026, https://4ort.xyz/entity/c-2012-s1.
BibTeX @misc{4ortxyz_c-2012-s1_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{C/2012 S1}}, year = {2026}, url = {https://4ort.xyz/entity/c-2012-s1}, note = {Accessed: 2026-11-04}}
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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. 19w ago · ~2026-34993-89 · 2026-06-21 view diff on Wikidata ↗
    Time of periapsis → {'unit': 'Q14267', 'amount': '+2456625.2645302867'}
    Orbital inclination → {'unit': 'Q28390', 'amount': '+62.39925'}, {'unit': 'Q28390', 'amount': '+62.16289397901024'}
    Instance of → sungrazing comet, hyperbolic comet
    Absolute magnitude → {'amount': '+10.2'}
    + 12 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:2||1 */ Wolfram Language entity code: Entity["Comet", "CometC2012S1ISON"]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.