SN 1939A

supernova

Thing supernova Q9326285

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SN 1939A

Summary

SN 1939A is a supernova^[1].

Key Facts

SN 1939A's instance of is recorded as supernova^[2].
SN 1939A's constellation is recorded as Virgo^[3].
SN 1939A's spectral class is recorded as SNIa^[4].
SN 1939A's part of is recorded as NGC 4636^[5].
SN 1939A's catalog code is recorded as SN 1939A^[6].
SN 1939A's apparent magnitude is recorded as {'unit': '1', 'amount': '+12.8'}^[7].
SN 1939A's SIMBAD ID is recorded as SN 1939A^[8].
SN 1939A's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+190.7000'}^[9].
SN 1939A's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+2.6933'}^[10].
SN 1939A's epoch is recorded as J2000.0^[11].

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Quick Facts

Instance of supernova

Part of NGC 4636

Properties

Apparent magnitude unit: 1, amount: +12.8

Catalog code SN 1939A

Constellation Virgo

Declination unit: www.wikidata.org, amount: +2.6933

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Right ascension unit: www.wikidata.org, amount: +190.7000

Spectral class SNIa

External References (1)

Simbad id SN 1939A

References

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

Direct Wikidata claims

[2] ↑ Q9326285 — instance of (P31): supernova. SIMBAD. wikidata.org.
[3] ↑ Q9326285 — constellation (P59): Virgo. VizieR. wikidata.org.
[4] ↑ Q9326285 — spectral class (P215): SNIa. Asiago Supernova Catalogue. wikidata.org.
[5] ↑ Q9326285 — part of (P361): NGC 4636. SIMBAD. wikidata.org.
[6] ↑ Q9326285 — catalog code (P528): SN 1939A. SIMBAD. wikidata.org.
[7] ↑ Q9326285 — apparent magnitude (P1215): {'unit': '1', 'amount': '+12.8'}. Asiago Supernova Catalogue (Version 2008-Mar). wikidata.org.
[8] ↑ Q9326285 — SIMBAD ID (P3083): SN 1939A. wikidata.org.
[9] ↑ Q9326285 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+190.7000'}. Sternberg Astronomical Institute supernova catalogue. wikidata.org.
[10] ↑ Q9326285 — declination (P6258): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+2.6933'}. Sternberg Astronomical Institute supernova catalogue. wikidata.org.
[11] ↑ Q9326285 — epoch (P6259): J2000.0. Sternberg Astronomical Institute supernova catalogue. wikidata.org.

Class ancestry

[1] ↑ Q9326285 is an instance of supernova (Q3937) [P31, primary]. Wikidata. wikidata.org.

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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 1939A. Retrieved May 7, 2026, from https://4ort.xyz/entity/q9326285

MLA “SN 1939A.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q9326285.

BibTeX

@misc{4ortxyz_q9326285_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{SN 1939A}}, year = {2026}, url = {https://4ort.xyz/entity/q9326285}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): SN 1939A — https://4ort.xyz/entity/q9326285 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q9326285 · Last refreshed: May 7, 2026