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SN 1993J

supernova in the M81 galaxy, observed in 1993
Thing supernova Q1037201
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SN 1993J

Summary

SN 1993J is a supernova[1]. It has Wikipedia articles in 12 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • SN 1993J's instance of is recorded as supernova[3].
  • SN 1993J's constellation is recorded as Ursa Major[4].
  • SN 1993J's spectral class is recorded as SN.IIb[5].
  • SN 1993J is part of Messier 81[6].
  • SN 1993J's Commons category is recorded as SN 1993J[7].
  • SN 1993J's catalog code is recorded as SN 1993J[8].
  • SN 1993J's catalog code is recorded as AAVSO 0947+69[9].
  • SN 1993J's catalog code is recorded as ICRF J095524.7+690113[10].
  • SN 1993J's catalog code is recorded as INTREF 395[11].
  • SN 1993J's catalog code is recorded as PBC J0955.1+6904[12].
  • SN 1993J's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.8'}[13].
  • SN 1993J's apparent magnitude is recorded as {'unit': '1', 'amount': '+12.0'}[14].
  • SN 1993J's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-30'}[15].
  • SN 1993J's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+148.853228167'}[16].
  • SN 1993J's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+69.020472944'}[17].
  • SN 1993J's epoch is recorded as J2000.0[18].

Body

Definition and Type

SN 1993J's instance of is recorded as supernova[3].

Use and Application

SN 1993J is part of Messier 81[6].

Why It Matters

SN 1993J has Wikipedia articles in 12 language editions, a strong signal of global cultural recognition.[2]

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. [5] ↑ . Optical spectra of 73 stripped-envelope core-collapse supernovae. wikidata.org.
  4. [6] ↑ . SIMBAD. wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . SIMBAD. wikidata.org.
  7. [9] ↑ . SIMBAD. wikidata.org.
  8. [10] ↑ . SIMBAD. wikidata.org.
  9. [11] ↑ . SIMBAD. wikidata.org.
  10. [12] ↑ . SIMBAD. wikidata.org.
  11. [13] ↑ . Asiago Supernova Catalogue (Version 2008-Mar). wikidata.org.
  12. [14] ↑ . SIMBAD. wikidata.org.
  13. [15] ↑ . Photometric identification of type Ia supernovae at moderate redshift. wikidata.org.
  14. [16] ↑ . The second extension of the international celestial reference frame: ICRF-EXT.1. wikidata.org.
  15. [17] ↑ . The second extension of the international celestial reference frame: ICRF-EXT.1. wikidata.org.
  16. [18] ↑ . The second extension of the international celestial reference frame: ICRF-EXT.1. wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikidata sitelinks. 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 1993J. Retrieved May 7, 2026, from https://4ort.xyz/entity/sn-1993j
MLA “SN 1993J.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/sn-1993j.
BibTeX @misc{4ortxyz_sn-1993j_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{SN 1993J}}, year = {2026}, url = {https://4ort.xyz/entity/sn-1993j}, note = {Accessed: 2026-05-07}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): SN 1993J — https://4ort.xyz/entity/sn-1993j (retrieved 2026-05-07)

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