SN 1991G

supernova

Thing type_ii_supernova Q9327030

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SN 1991G

Summary

SN 1991G is a Type II supernova^[1].

Key Facts

SN 1991G's instance of is recorded as Type II supernova^[2].
SN 1991G's constellation is recorded as Ursa Major^[3].
SN 1991G's spectral class is recorded as SN.IIP^[4].
SN 1991G is part of Q1108899^[5].
SN 1991G's catalog code is recorded as SN 1991G^[6].
SN 1991G's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.7'}^[7].
SN 1991G's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+1150'}^[8].
SN 1991G's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+181.370208'}^[9].
SN 1991G's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+50.536583'}^[10].
SN 1991G's epoch is recorded as J2000.0^[11].

Body

Definition and Type

SN 1991G's instance of is recorded as Type II supernova^[2].

Use and Application

SN 1991G is part of Q1108899^[5].

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Quick Facts

Instance of Type II supernova

Part of NGC 4088

Properties

Apparent magnitude unit: 1, amount: +15.7

Catalog code SN 1991G

Constellation Ursa Major

Declination unit: www.wikidata.org, amount: +50.536583

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Radial velocity unit: www.wikidata.org, amount: +1150

Right ascension unit: www.wikidata.org, amount: +181.370208

Spectral class SN.IIP

External References (2)

Google knowledge graph id /g/122r2trn

Simbad id SN 1991G

References

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

Direct Wikidata claims

[2] ↑ Q9327030 — instance of (P31): Type II supernova. SIMBAD. wikidata.org.
[3] ↑ Q9327030 — constellation (P59): Ursa Major. VizieR. wikidata.org.
[4] ↑ Q9327030 — spectral class (P215): SN.IIP. Asiago Supernova Catalogue. wikidata.org.
[5] ↑ Q9327030 — part of (P361): Q1108899. SIMBAD. wikidata.org.
[6] ↑ Q9327030 — catalog code (P528): SN 1991G. SIMBAD. wikidata.org.
[7] ↑ Q9327030 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.7'}. Asiago Supernova Catalogue (Version 2008-Mar). wikidata.org.
[8] ↑ Q9327030 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+1150'}. Toward a Cosmological Hubble Diagram for Type II‐P Supernovae. wikidata.org.
[9] ↑ Q9327030 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+181.370208'}. Supernovae and Massive Star Formation Regions. wikidata.org.
[10] ↑ Q9327030 — declination (P6258): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+50.536583'}. Supernovae and Massive Star Formation Regions. wikidata.org.
[11] ↑ Q9327030 — epoch (P6259): J2000.0. Supernovae and Massive Star Formation Regions. wikidata.org.

Class ancestry

[1] ↑ Q9327030 is an instance of Type II supernova (Q1049029) [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 1991G. Retrieved May 7, 2026, from https://4ort.xyz/entity/q9327030

MLA “SN 1991G.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q9327030.

BibTeX

@misc{4ortxyz_q9327030_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{SN 1991G}}, year = {2026}, url = {https://4ort.xyz/entity/q9327030}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): SN 1991G — https://4ort.xyz/entity/q9327030 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q9327030 · Last refreshed: May 7, 2026