Q91961957

Thing eruptive_variable_star Q91961957

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Q91961957

Summary

Q91961957 is an eruptive variable star^[1].

Key Facts

Q91961957's instance of is recorded as eruptive variable star^[2].
Q91961957's constellation is recorded as Cygnus^[3].
Q91961957's spectral class is recorded as A1V^[4].
Q91961957's spectral class is recorded as A2V^[5].
Q91961957's spectral class is recorded as A2III^[6].
Q91961957's catalog code is recorded as GSC 03557-00736^[7].
Q91961957's catalog code is recorded as TYC 3557-736-1^[8].
Q91961957's catalog code is recorded as 2MASS J19490880+4639174^[9].
Q91961957's catalog code is recorded as Gaia DR1 2080301425958595968^[10].
Q91961957's catalog code is recorded as KIC 9845573^[11].
Q91961957's catalog code is recorded as Gaia DR2 2080301425958595968^[12].
Q91961957's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.211'}^[13].
Q91961957's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.198'}^[14].
Q91961957's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.188'}^[15].
Q91961957's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.45'}^[16].
Q91961957's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.60'}^[17].
Q91961957's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.4480'}^[18].
Q91961957's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+1.3758'}^[19].
Q91961957's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+5.7'}^[20].
Q91961957's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+2.7'}^[21].
Q91961957's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+9.9'}^[22].
Q91961957's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-1.7'}^[23].
Q91961957's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+0.8'}^[24].
Q91961957's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+2.8'}^[25].
Q91961957's metallicity is recorded as {'unit': '1', 'amount': '-0.23'}^[26].

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Quick Facts

Instance of eruptive variable star

Properties

Apparent magnitude unit: 1, amount: +10.211, unit: 1, amount: +10.198, unit: 1, amount: +10.188, unit: 1, amount: +10.45, unit: 1, amount: +10.60, unit: 1, amount: +10.4480

Catalog code GSC 03557-00736, TYC 3557-736-1, 2MASS J19490880+4639174, Gaia DR1 2080301425958595968, KIC 9845573, Gaia DR2 2080301425958595968

Constellation Cygnus

Declination unit: www.wikidata.org, amount: +46.65482940240900

Declination component of proper motion unit: www.wikidata.org, amount: -2.190

Distance from earth unit: www.wikidata.org, amount: +726.8498

Effective temperature unit: www.wikidata.org, amount: +9382, unit: www.wikidata.org, amount: +9558, unit: www.wikidata.org, amount: +9425, unit: www.wikidata.org, amount: +9301, unit: www.wikidata.org, amount: +9260, unit: www.wikidata.org, amount: +9404

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Metallicity unit: 1, amount: -0.23, unit: 1, amount: -0.15, unit: 1, amount: -0.20

Parallax unit: www.wikidata.org, amount: +1.3758

Radial velocity unit: www.wikidata.org, amount: +5.7, unit: www.wikidata.org, amount: +2.7, unit: www.wikidata.org, amount: +9.9, unit: www.wikidata.org, amount: -1.7, unit: www.wikidata.org, amount: +0.8, unit: www.wikidata.org, amount: +2.8

Right ascension unit: www.wikidata.org, amount: +297.28670058803620

Right ascension component of proper motion unit: www.wikidata.org, amount: -0.353

Spectral class A1V, A2V, A2III

Surface gravity unit: www.wikidata.org, amount: +6800, unit: www.wikidata.org, amount: +6200, unit: www.wikidata.org, amount: +6000, unit: www.wikidata.org, amount: +7000

External References (2)

Gaia id 2080301425958595968

Simbad id TYC 3557-736-1

References

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

Direct Wikidata claims

[2] ↑ Q91961957 — instance of (P31): eruptive variable star. SIMBAD. wikidata.org.
[3] ↑ Q91961957 — constellation (P59): Cygnus. wikidata.org.
[4] ↑ Q91961957 — spectral class (P215): A1V. Activity indicators and stellar parameters of the Kepler targets. An application of the ROTFIT pipeline to LAMOST-Kepler stellar spectra.. wikidata.org.
[5] ↑ Q91961957 — spectral class (P215): A2V. Activity indicators and stellar parameters of the Kepler targets. An application of the ROTFIT pipeline to LAMOST-Kepler stellar spectra.. wikidata.org.
[6] ↑ Q91961957 — spectral class (P215): A2III. Activity indicators and stellar parameters of the Kepler targets. An application of the ROTFIT pipeline to LAMOST-Kepler stellar spectra.. wikidata.org.
[7] ↑ Q91961957 — catalog code (P528): GSC 03557-00736. SIMBAD. wikidata.org.
[8] ↑ Q91961957 — catalog code (P528): TYC 3557-736-1. SIMBAD. wikidata.org.
[9] ↑ Q91961957 — catalog code (P528): 2MASS J19490880+4639174. SIMBAD. wikidata.org.
[10] ↑ Q91961957 — catalog code (P528): Gaia DR1 2080301425958595968. SIMBAD. wikidata.org.
[11] ↑ Q91961957 — catalog code (P528): KIC 9845573. SIMBAD. wikidata.org.
[12] ↑ Q91961957 — catalog code (P528): Gaia DR2 2080301425958595968. SIMBAD. wikidata.org.
[13] ↑ Q91961957 — apparent magnitude (P1215): {'unit': '1', 'amount': '+10.211'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[14] ↑ Q91961957 — apparent magnitude (P1215): {'unit': '1', 'amount': '+10.198'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[15] ↑ Q91961957 — apparent magnitude (P1215): {'unit': '1', 'amount': '+10.188'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[16] ↑ Q91961957 — apparent magnitude (P1215): {'unit': '1', 'amount': '+10.45'}. The Tycho-2 catalogue of the 2.5 million brightest stars. wikidata.org.
[17] ↑ Q91961957 — apparent magnitude (P1215): {'unit': '1', 'amount': '+10.60'}. The Tycho-2 catalogue of the 2.5 million brightest stars. wikidata.org.
[18] ↑ Q91961957 — apparent magnitude (P1215): {'unit': '1', 'amount': '+10.4480'}. Gaia Data Release 2. wikidata.org.
[19] ↑ Q91961957 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+1.3758'}. Gaia Data Release 2. wikidata.org.
[20] ↑ Q91961957 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+5.7'}. Activity indicators and stellar parameters of the Kepler targets. An application of the ROTFIT pipeline to LAMOST-Kepler stellar spectra.. wikidata.org.
[21] ↑ Q91961957 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+2.7'}. Activity indicators and stellar parameters of the Kepler targets. An application of the ROTFIT pipeline to LAMOST-Kepler stellar spectra.. wikidata.org.
[22] ↑ Q91961957 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+9.9'}. Activity indicators and stellar parameters of the Kepler targets. An application of the ROTFIT pipeline to LAMOST-Kepler stellar spectra.. wikidata.org.
[23] ↑ Q91961957 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-1.7'}. Activity indicators and stellar parameters of the Kepler targets. An application of the ROTFIT pipeline to LAMOST-Kepler stellar spectra.. wikidata.org.
[24] ↑ Q91961957 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+0.8'}. Activity indicators and stellar parameters of the Kepler targets. An application of the ROTFIT pipeline to LAMOST-Kepler stellar spectra.. wikidata.org.
[25] ↑ Q91961957 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+2.8'}. Activity indicators and stellar parameters of the Kepler targets. An application of the ROTFIT pipeline to LAMOST-Kepler stellar spectra.. wikidata.org.
[26] ↑ Q91961957 — metallicity (P2227): {'unit': '1', 'amount': '-0.23'}. Activity indicators and stellar parameters of the Kepler targets. An application of the ROTFIT pipeline to LAMOST-Kepler stellar spectra.. wikidata.org.

Class ancestry

[1] ↑ Q91961957 is an instance of eruptive variable star (Q1362543) [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). Q91961957. Retrieved May 7, 2026, from https://4ort.xyz/entity/q91961957

MLA “Q91961957.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q91961957.

BibTeX

@misc{4ortxyz_q91961957_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q91961957}}, year = {2026}, url = {https://4ort.xyz/entity/q91961957}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q91961957 — https://4ort.xyz/entity/q91961957 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q91961957 · Last refreshed: May 7, 2026