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SN 1939C

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SN 1939C

Summary

SN 1939C is a supernova[1].

Key Facts

  • SN 1939C is credited with the discovery of Fritz Zwicky[2].
  • SN 1939C's instance of is recorded as supernova[3].
  • SN 1939C's constellation is recorded as Cepheus[4].
  • SN 1939C's spectral class is recorded as SN.I:[5].
  • SN 1939C took place at Q671210[6].
  • SN 1939C is part of Q671210[7].
  • SN 1939C's catalog code is recorded as SN 1939C[8].
  • SN 1939C's catalog code is recorded as 2MASS J20342405+6009299[9].
  • SN 1939C's catalog code is recorded as GPM 308.600512+60.158384[10].
  • SN 1939C's catalog code is recorded as Gaia DR2 2194501518284091008[11].
  • SN 1939C's time of discovery or invention is recorded as July 17, 1939[12].
  • SN 1939C's apparent magnitude is recorded as {'unit': '1', 'amount': '+13.7'}[13].
  • SN 1939C's apparent magnitude is recorded as {'unit': '1', 'amount': '+14.2548'}[14].
  • SN 1939C's apparent magnitude is recorded as {'unit': '1', 'amount': '+13.008'}[15].
  • SN 1939C's apparent magnitude is recorded as {'unit': '1', 'amount': '+12.704'}[16].
  • SN 1939C's apparent magnitude is recorded as {'unit': '1', 'amount': '+12.588'}[17].
  • SN 1939C's apparent magnitude is recorded as {'unit': '1', 'amount': '+13.8'}[18].
  • SN 1939C's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+0.7811'}[19].
  • SN 1939C's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+1280.2458'}[20].
  • SN 1939C's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+308.60028357247750'}[21].
  • SN 1939C's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+60.15829178462650'}[22].
  • SN 1939C's epoch is recorded as J2000.0[23].
  • SN 1939C's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-8.171'}[24].
  • SN 1939C's right ascension component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-6.418'}[25].

Body

Definition and Type

SN 1939C's instance of is recorded as supernova[3].

Use and Application

SN 1939C is part of Q671210[7].

References

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

Direct Wikidata claims

  1. [3] ↑ . SIMBAD. wikidata.org.
  2. [4] ↑ . VizieR. wikidata.org.
  3. [2] ↑ . wikidata.org.
  4. [5] ↑ . Asiago Supernova Catalogue. wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . SIMBAD. wikidata.org.
  7. [8] ↑ . SIMBAD. wikidata.org.
  8. [9] ↑ . SIMBAD. wikidata.org.
  9. [10] ↑ . SIMBAD. wikidata.org.
  10. [11] ↑ . SIMBAD. wikidata.org.
  11. [12] ↑ . wikidata.org.
  12. [13] ↑ . Asiago Supernova Catalogue (Version 2008-Mar). wikidata.org.
  13. [14] ↑ . Gaia Data Release 2. wikidata.org.
  14. [15] ↑ . VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
  15. [16] ↑ . VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
  16. [17] ↑ . VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
  17. [18] ↑ . SIMBAD. wikidata.org.
  18. [19] ↑ . Gaia Data Release 2. wikidata.org.
  19. [20] ↑ . Gaia Data Release 2. wikidata.org.
  20. [21] ↑ . Gaia Data Release 2. wikidata.org.
  21. [22] ↑ . Gaia Data Release 2. wikidata.org.
  22. [23] ↑ . Gaia Data Release 2. wikidata.org.
  23. [24] ↑ . Gaia Data Release 2. wikidata.org.
  24. [25] ↑ . Gaia Data Release 2. 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). SN 1939C. Retrieved May 7, 2026, from https://4ort.xyz/entity/sn-1939c
MLA “SN 1939C.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/sn-1939c.
BibTeX @misc{4ortxyz_sn-1939c_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{SN 1939C}}, year = {2026}, url = {https://4ort.xyz/entity/sn-1939c}, note = {Accessed: 2026-05-07}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): SN 1939C — https://4ort.xyz/entity/sn-1939c (retrieved 2026-05-07)

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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. 16w ago · Phantomdj · 2026-05-20 view diff on Wikidata ↗
    Catalog code → SN 1939C, 2MASS J20342405+6009299, GPM 308.600512+60.158384 +1
    Parallax → {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount
    Constellation → Cepheus
    Instance of → supernova
    + 17 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update:2||1|1 */ [[Property:P31]]: [[Q3937]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.