Q89821280

Thing eruptive_variable_star Q89821280

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Q89821280

Summary

Q89821280 is an eruptive variable star^[1].

Key Facts

Q89821280's instance of is recorded as eruptive variable star^[2].
Q89821280's constellation is recorded as Cygnus^[3].
Q89821280's spectral class is recorded as A7^[4].
Q89821280's catalog code is recorded as BD+38 3750^[5].
Q89821280's catalog code is recorded as GSC 03136-00747^[6].
Q89821280's catalog code is recorded as HD 225718^[7].
Q89821280's catalog code is recorded as TYC 3136-747-1^[8].
Q89821280's catalog code is recorded as KIC 4180199^[9].
Q89821280's catalog code is recorded as Gaia DR1 2073230123086043648^[10].
Q89821280's catalog code is recorded as 2MASS J19460234+3912197^[11].
Q89821280's catalog code is recorded as Gaia DR2 2073230127394415104^[12].
Q89821280's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.39'}^[13].
Q89821280's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.18'}^[14].
Q89821280's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.0462'}^[15].
Q89821280's apparent magnitude is recorded as {'unit': '1', 'amount': '+9.417'}^[16].
Q89821280's apparent magnitude is recorded as {'unit': '1', 'amount': '+9.68'}^[17].
Q89821280's apparent magnitude is recorded as {'unit': '1', 'amount': '+9.273'}^[18].
Q89821280's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+2.0556'}^[19].
Q89821280's metallicity is recorded as {'unit': '1', 'amount': '-0.75'}^[20].
Q89821280's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+486.4760'}^[21].
Q89821280's SIMBAD ID is recorded as HD 225718^[22].
Q89821280's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+296.50977873619960'}^[23].
Q89821280's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+39.20546562816830'}^[24].
Q89821280's epoch is recorded as J2000.0^[25].
Q89821280's effective temperature is recorded as {'unit': 'http://www.wikidata.org/entity/Q11579', 'amount': '+7390'}^[26].

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Quick Facts

Instance of eruptive variable star

Properties

Apparent magnitude unit: 1, amount: +10.39, unit: 1, amount: +10.18, unit: 1, amount: +10.0462, unit: 1, amount: +9.417, unit: 1, amount: +9.68, unit: 1, amount: +9.273

Catalog code BD+38 3750, GSC 03136-00747, HD 225718, TYC 3136-747-1, KIC 4180199, Gaia DR1 2073230123086043648, 2MASS J19460234+3912197, Gaia DR2 2073230127394415104

Constellation Cygnus

Declination unit: www.wikidata.org, amount: +39.20546562816830

Declination component of proper motion unit: www.wikidata.org, amount: -12.185

Distance from earth unit: www.wikidata.org, amount: +486.4760

Effective temperature unit: www.wikidata.org, amount: +7390

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Metallicity unit: 1, amount: -0.75

Parallax unit: www.wikidata.org, amount: +2.0556

Right ascension unit: www.wikidata.org, amount: +296.50977873619960

Right ascension component of proper motion unit: www.wikidata.org, amount: +0.933

Spectral class A7

Surface gravity unit: www.wikidata.org, amount: +11200

External References (2)

Gaia id 2073230127394415104

Simbad id HD 225718

References

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

Direct Wikidata claims

[2] ↑ Q89821280 — instance of (P31): eruptive variable star. SIMBAD. wikidata.org.
[3] ↑ Q89821280 — constellation (P59): Cygnus. wikidata.org.
[4] ↑ Q89821280 — spectral class (P215): A7. VizieR Online Data Catalog: Henry Draper Catalogue and Extension, published in Ann. Harvard Obs. 91-100 (1918-1925). wikidata.org.
[5] ↑ Q89821280 — catalog code (P528): BD+38 3750. SIMBAD. wikidata.org.
[6] ↑ Q89821280 — catalog code (P528): GSC 03136-00747. SIMBAD. wikidata.org.
[7] ↑ Q89821280 — catalog code (P528): HD 225718. SIMBAD. wikidata.org.
[8] ↑ Q89821280 — catalog code (P528): TYC 3136-747-1. SIMBAD. wikidata.org.
[9] ↑ Q89821280 — catalog code (P528): KIC 4180199. SIMBAD. wikidata.org.
[10] ↑ Q89821280 — catalog code (P528): Gaia DR1 2073230123086043648. SIMBAD. wikidata.org.
[11] ↑ Q89821280 — catalog code (P528): 2MASS J19460234+3912197. SIMBAD. wikidata.org.
[12] ↑ Q89821280 — catalog code (P528): Gaia DR2 2073230127394415104. SIMBAD. wikidata.org.
[13] ↑ Q89821280 — apparent magnitude (P1215): {'unit': '1', 'amount': '+10.39'}. The Tycho-2 catalogue of the 2.5 million brightest stars. wikidata.org.
[14] ↑ Q89821280 — apparent magnitude (P1215): {'unit': '1', 'amount': '+10.18'}. The Tycho-2 catalogue of the 2.5 million brightest stars. wikidata.org.
[15] ↑ Q89821280 — apparent magnitude (P1215): {'unit': '1', 'amount': '+10.0462'}. Gaia Data Release 2. wikidata.org.
[16] ↑ Q89821280 — apparent magnitude (P1215): {'unit': '1', 'amount': '+9.417'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[17] ↑ Q89821280 — apparent magnitude (P1215): {'unit': '1', 'amount': '+9.68'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[18] ↑ Q89821280 — apparent magnitude (P1215): {'unit': '1', 'amount': '+9.273'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[19] ↑ Q89821280 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+2.0556'}. Gaia Data Release 2. wikidata.org.
[20] ↑ Q89821280 — metallicity (P2227): {'unit': '1', 'amount': '-0.75'}. Spectrum analysis of bright Kepler late B- to early F-stars. wikidata.org.
[21] ↑ Q89821280 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+486.4760'}. Gaia Data Release 2. wikidata.org.
[22] ↑ Q89821280 — SIMBAD ID (P3083): HD 225718. wikidata.org.
[23] ↑ Q89821280 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+296.50977873619960'}. Gaia Data Release 2. wikidata.org.
[24] ↑ Q89821280 — declination (P6258): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+39.20546562816830'}. Gaia Data Release 2. wikidata.org.
[25] ↑ Q89821280 — epoch (P6259): J2000.0. Gaia Data Release 2. wikidata.org.
[26] ↑ Q89821280 — effective temperature (P6879): {'unit': 'http://www.wikidata.org/entity/Q11579', 'amount': '+7390'}. Spectrum analysis of bright Kepler late B- to early F-stars. wikidata.org.

Class ancestry

[1] ↑ Q89821280 is an instance of eruptive variable star (Q1362543) [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). Q89821280. Retrieved May 7, 2026, from https://4ort.xyz/entity/q89821280

MLA “Q89821280.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q89821280.

BibTeX

@misc{4ortxyz_q89821280_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q89821280}}, year = {2026}, url = {https://4ort.xyz/entity/q89821280}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q89821280 — https://4ort.xyz/entity/q89821280 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q89821280 · Last refreshed: May 7, 2026