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SN 2009dd

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SN 2009dd

Summary

SN 2009dd is a Type II supernova[1].

Key Facts

  • SN 2009dd's instance of is recorded as Type II supernova[2].
  • SN 2009dd's constellation is recorded as Ursa Major[3].
  • SN 2009dd's spectral class is recorded as SN.II[4].
  • SN 2009dd is part of Q1108899[5].
  • SN 2009dd's catalog code is recorded as SN 2009dd[6].
  • SN 2009dd's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+181.392083'}[7].
  • SN 2009dd's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+50.538500'}[8].
  • SN 2009dd's epoch is recorded as J2000.0[9].

Body

Definition and Type

SN 2009dd's instance of is recorded as Type II supernova[2].

Use and Application

SN 2009dd is part of Q1108899[5].

References

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

Direct Wikidata claims

  1. [2] ↑ . SIMBAD. wikidata.org.
  2. [3] ↑ . VizieR. wikidata.org.
  3. [4] ↑ . Asiago Supernova Catalogue. wikidata.org.
  4. [5] ↑ . SIMBAD. wikidata.org.
  5. [6] ↑ . SIMBAD. wikidata.org.
  6. [7] ↑ . Asiago Supernova Catalogue. wikidata.org.
  7. [8] ↑ . Asiago Supernova Catalogue. wikidata.org.
  8. [9] ↑ . Asiago Supernova Catalogue. 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 2009dd. Retrieved May 7, 2026, from https://4ort.xyz/entity/q9331223
MLA “SN 2009dd.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q9331223.
BibTeX @misc{4ortxyz_q9331223_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{SN 2009dd}}, year = {2026}, url = {https://4ort.xyz/entity/q9331223}, note = {Accessed: 2026-05-07}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): SN 2009dd — https://4ort.xyz/entity/q9331223 (retrieved 2026-05-07)

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