SN 1999di

supernova

Thing supernova Q9327824

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SN 1999di

Summary

SN 1999di is a supernova^[1].

Key Facts

SN 1999di's instance of is recorded as supernova^[2].
SN 1999di's constellation is recorded as Aries^[3].
SN 1999di's spectral class is recorded as SNIb^[4].
SN 1999di is part of NGC 776^[5].
SN 1999di's catalog code is recorded as SN 1999di^[6].
SN 1999di's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.0'}^[7].
SN 1999di's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+4879'}^[8].
SN 1999di's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+29.978583'}^[9].
SN 1999di's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+23.639639'}^[10].
SN 1999di's epoch is recorded as J2000.0^[11].

Body

Definition and Type

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

Use and Application

SN 1999di is part of NGC 776^[5].

⭐ Popularity Graph

0/100 long tail

Quick Facts

Instance of supernova

Part of NGC 776

Properties

Apparent magnitude unit: 1, amount: +18.0

Catalog code SN 1999di

Constellation Aries

Declination unit: www.wikidata.org, amount: +23.639639

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Radial velocity unit: www.wikidata.org, amount: +4879

Right ascension unit: www.wikidata.org, amount: +29.978583

Spectral class SNIb

External References (2)

Google knowledge graph id /g/122z7q49

Simbad id SN 1999di

🏷️ Also known as

pl SN 1999DI

References

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

Direct Wikidata claims

[2] ↑ Q9327824 — instance of (P31): supernova. SIMBAD. wikidata.org.
[3] ↑ Q9327824 — constellation (P59): Aries. VizieR. wikidata.org.
[4] ↑ Q9327824 — spectral class (P215): SNIb. Asiago Supernova Catalogue. wikidata.org.
[5] ↑ Q9327824 — part of (P361): NGC 776. SIMBAD. wikidata.org.
[6] ↑ Q9327824 — catalog code (P528): SN 1999di. SIMBAD. wikidata.org.
[7] ↑ Q9327824 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.0'}. Asiago Supernova Catalogue (Version 2008-Mar). wikidata.org.
[8] ↑ Q9327824 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+4879'}. Progenitor diagnostics for stripped core-collapse supernovae: measured metallicities at explosion sites. wikidata.org.
[9] ↑ Q9327824 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+29.978583'}. Supernovae 1999di and 1999dj. wikidata.org.
[10] ↑ Q9327824 — declination (P6258): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+23.639639'}. Supernovae 1999di and 1999dj. wikidata.org.
[11] ↑ Q9327824 — epoch (P6259): J2000.0. Supernovae 1999di and 1999dj. wikidata.org.

Class ancestry

[1] ↑ Q9327824 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 1999di. Retrieved May 7, 2026, from https://4ort.xyz/entity/q9327824

MLA “SN 1999di.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q9327824.

BibTeX

@misc{4ortxyz_q9327824_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{SN 1999di}}, year = {2026}, url = {https://4ort.xyz/entity/q9327824}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): SN 1999di — https://4ort.xyz/entity/q9327824 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q9327824 · Last refreshed: May 7, 2026