SN 1999dh

supernova

Thing supernova Q9327825

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SN 1999dh

Summary

SN 1999dh is a supernova^[1].

Key Facts

SN 1999dh's instance of is recorded as supernova^[2].
SN 1999dh's constellation is recorded as Cetus^[3].
SN 1999dh's spectral class is recorded as SN.II^[4].
SN 1999dh is part of Q3713901^[5].
SN 1999dh's catalog code is recorded as SN 1999dh^[6].
SN 1999dh's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.4'}^[7].
SN 1999dh's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+32.775292'}^[8].
SN 1999dh's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+3.851917'}^[9].
SN 1999dh's epoch is recorded as J2000.0^[10].

Body

Definition and Type

SN 1999dh's instance of is recorded as supernova^[2].

Use and Application

SN 1999dh is part of Q3713901^[5].

⭐ Popularity Graph

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Quick Facts

Instance of supernova

Part of IC 211

Properties

Apparent magnitude unit: 1, amount: +15.4

Catalog code SN 1999dh

Constellation Cetus

Declination unit: www.wikidata.org, amount: +3.851917

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Right ascension unit: www.wikidata.org, amount: +32.775292

Spectral class SN.II

External References (1)

Simbad id SN 1999dh

🏷️ Also known as

pl SN 1999DH

References

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

Direct Wikidata claims

[2] ↑ Q9327825 — instance of (P31): supernova. SIMBAD. wikidata.org.
[3] ↑ Q9327825 — constellation (P59): Cetus. VizieR. wikidata.org.
[4] ↑ Q9327825 — spectral class (P215): SN.II. Asiago Supernova Catalogue. wikidata.org.
[5] ↑ Q9327825 — part of (P361): Q3713901. SIMBAD. wikidata.org.
[6] ↑ Q9327825 — catalog code (P528): SN 1999dh. SIMBAD. wikidata.org.
[7] ↑ Q9327825 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.4'}. Asiago Supernova Catalogue (Version 2008-Mar). wikidata.org.
[8] ↑ Q9327825 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+32.775292'}. Supernova 1999dh in IC 211. wikidata.org.
[9] ↑ Q9327825 — declination (P6258): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+3.851917'}. Supernova 1999dh in IC 211. wikidata.org.
[10] ↑ Q9327825 — epoch (P6259): J2000.0. Supernova 1999dh in IC 211. wikidata.org.

Class ancestry

[1] ↑ Q9327825 is an instance of supernova (Q3937) [P31, primary]. 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 1999dh. Retrieved May 7, 2026, from https://4ort.xyz/entity/q9327825

MLA “SN 1999dh.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q9327825.

BibTeX

@misc{4ortxyz_q9327825_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{SN 1999dh}}, year = {2026}, url = {https://4ort.xyz/entity/q9327825}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): SN 1999dh — https://4ort.xyz/entity/q9327825 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q9327825 · Last refreshed: May 7, 2026