Q87011240

W Ursae Majoris variable star in the constellation Cygnus

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Q87011240

Summary

Q87011240 is a W Ursae Majoris variable^[1].

Key Facts

Q87011240's instance of is recorded as W Ursae Majoris variable^[2].
Q87011240's constellation is recorded as Cygnus^[3].
Q87011240's spectral class is recorded as F2II^[4].
Q87011240's spectral class is recorded as A9.2^[5].
Q87011240's catalog code is recorded as UCAC4 674-070366^[6].
Q87011240's catalog code is recorded as 2MASS J19180543+4441153^[7].
Q87011240's catalog code is recorded as ROTSE1 J191805.52+444116.3^[8].
Q87011240's catalog code is recorded as ASAS J191805+4441.2^[9].
Q87011240's catalog code is recorded as KIC 8554005^[10].
Q87011240's catalog code is recorded as NSVS 5534209^[11].
Q87011240's catalog code is recorded as 1SWASP J191805.45+444115.4^[12].
Q87011240's type of variable star is recorded as eclipsing binary star^[13].
Q87011240's apparent magnitude is recorded as {'unit': '1', 'amount': '+12.73'}^[14].
Q87011240's apparent magnitude is recorded as {'unit': '1', 'amount': '+12.78'}^[15].
Q87011240's apparent magnitude is recorded as {'unit': '1', 'amount': '+13.01'}^[16].
Q87011240's apparent magnitude is recorded as {'unit': '1', 'amount': '+12.85'}^[17].
Q87011240's apparent magnitude is recorded as {'unit': '1', 'amount': '+13.42'}^[18].
Q87011240's apparent magnitude is recorded as {'unit': '1', 'amount': '+12.81'}^[19].
Q87011240's apparent magnitude is recorded as {'unit': '1', 'amount': '+12.8273'}^[20].
Q87011240's apparent magnitude is recorded as {'unit': '1', 'amount': '+11.803'}^[21].
Q87011240's apparent magnitude is recorded as {'unit': '1', 'amount': '+11.667'}^[22].
Q87011240's apparent magnitude is recorded as {'unit': '1', 'amount': '+11.622'}^[23].
Q87011240's apparent magnitude is recorded as {'unit': '1', 'amount': '+12.424'}^[24].
Q87011240's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+0.7471'}^[25].
Q87011240's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+16.7'}^[26].

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Quick Facts

Instance of W Ursae Majoris variable

Properties

Apparent magnitude unit: 1, amount: +12.73, unit: 1, amount: +12.78, unit: 1, amount: +13.01, unit: 1, amount: +12.85, unit: 1, amount: +13.42, unit: 1, amount: +12.81, unit: 1, amount: +12.8273, unit: 1, amount: +11.803, unit: 1, amount: +11.667, unit: 1, amount: +11.622, unit: 1, amount: +12.424

Catalog code UCAC4 674-070366, 2MASS J19180543+4441153, ROTSE1 J191805.52+444116.3, ASAS J191805+4441.2, KIC 8554005, NSVS 5534209, 1SWASP J191805.45+444115.4

Constellation Cygnus

Declination unit: www.wikidata.org, amount: +44.68757028929611

Declination component of proper motion unit: www.wikidata.org, amount: -7.818

Distance from earth unit: www.wikidata.org, amount: +1338.51

Effective temperature unit: www.wikidata.org, amount: +6798, unit: www.wikidata.org, amount: +6680

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Metallicity unit: 1, amount: -0.18, unit: 1, amount: -0.19

Parallax unit: www.wikidata.org, amount: +0.7471

Radial velocity unit: www.wikidata.org, amount: +16.7, unit: www.wikidata.org, amount: -26.6

Right ascension unit: www.wikidata.org, amount: +289.52262805497710

Right ascension component of proper motion unit: www.wikidata.org, amount: +3.313

Spectral class F2II, A9.2

Stellar rotational velocity unit: www.wikidata.org, amount: +321

Surface gravity unit: www.wikidata.org, amount: +13000, unit: www.wikidata.org, amount: +13500

Type of variable star eclipsing binary star

External References (2)

Gaia id 2126955323535081728

Simbad id ROTSE1 J191805.52+444116.3

References

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

Direct Wikidata claims

[2] ↑ Q87011240 — instance of (P31): W Ursae Majoris variable. SIMBAD. wikidata.org.
[3] ↑ Q87011240 — constellation (P59): Cygnus. wikidata.org.
[4] ↑ Q87011240 — spectral class (P215): F2II. Activity indicators and stellar parameters of the Kepler targets. An application of the ROTFIT pipeline to LAMOST-Kepler stellar spectra.. wikidata.org.
[5] ↑ Q87011240 — spectral class (P215): A9.2. Activity indicators and stellar parameters of the Kepler targets. An application of the ROTFIT pipeline to LAMOST-Kepler stellar spectra.. wikidata.org.
[6] ↑ Q87011240 — catalog code (P528): UCAC4 674-070366. SIMBAD. wikidata.org.
[7] ↑ Q87011240 — catalog code (P528): 2MASS J19180543+4441153. SIMBAD. wikidata.org.
[8] ↑ Q87011240 — catalog code (P528): ROTSE1 J191805.52+444116.3. SIMBAD. wikidata.org.
[9] ↑ Q87011240 — catalog code (P528): ASAS J191805+4441.2. SIMBAD. wikidata.org.
[10] ↑ Q87011240 — catalog code (P528): KIC 8554005. SIMBAD. wikidata.org.
[11] ↑ Q87011240 — catalog code (P528): NSVS 5534209. SIMBAD. wikidata.org.
[12] ↑ Q87011240 — catalog code (P528): 1SWASP J191805.45+444115.4. SIMBAD. wikidata.org.
[13] ↑ Q87011240 — type of variable star (P881): eclipsing binary star. ROTSE all-sky surveys for variable stars. I. Test fields. wikidata.org.
[14] ↑ Q87011240 — apparent magnitude (P1215): {'unit': '1', 'amount': '+12.73'}. Fourth USNO CCD Astrograph Catalog. wikidata.org.
[15] ↑ Q87011240 — apparent magnitude (P1215): {'unit': '1', 'amount': '+12.78'}. Fourth USNO CCD Astrograph Catalog. wikidata.org.
[16] ↑ Q87011240 — apparent magnitude (P1215): {'unit': '1', 'amount': '+13.01'}. Fourth USNO CCD Astrograph Catalog. wikidata.org.
[17] ↑ Q87011240 — apparent magnitude (P1215): {'unit': '1', 'amount': '+12.85'}. Fourth USNO CCD Astrograph Catalog. wikidata.org.
[18] ↑ Q87011240 — apparent magnitude (P1215): {'unit': '1', 'amount': '+13.42'}. Fourth USNO CCD Astrograph Catalog. wikidata.org.
[19] ↑ Q87011240 — apparent magnitude (P1215): {'unit': '1', 'amount': '+12.81'}. Fourth USNO CCD Astrograph Catalog. wikidata.org.
[20] ↑ Q87011240 — apparent magnitude (P1215): {'unit': '1', 'amount': '+12.8273'}. Gaia Data Release 2. wikidata.org.
[21] ↑ Q87011240 — apparent magnitude (P1215): {'unit': '1', 'amount': '+11.803'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[22] ↑ Q87011240 — apparent magnitude (P1215): {'unit': '1', 'amount': '+11.667'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[23] ↑ Q87011240 — apparent magnitude (P1215): {'unit': '1', 'amount': '+11.622'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[24] ↑ Q87011240 — apparent magnitude (P1215): {'unit': '1', 'amount': '+12.424'}. The All Sky Automated Survey. The Catalog of Variable Stars in the Kepler field of view. wikidata.org.
[25] ↑ Q87011240 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+0.7471'}. Gaia Data Release 2. wikidata.org.
[26] ↑ Q87011240 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+16.7'}. 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] ↑ Q87011240 is an instance of W Ursae Majoris variable (Q691269) [P31, primary]. Wikidata. wikidata.org.

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APA 4ort.xyz Knowledge Graph. (2026). Q87011240. Retrieved May 7, 2026, from https://4ort.xyz/entity/q87011240

MLA “Q87011240.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q87011240.

BibTeX

@misc{4ortxyz_q87011240_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q87011240}}, year = {2026}, url = {https://4ort.xyz/entity/q87011240}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q87011240 — https://4ort.xyz/entity/q87011240 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q87011240 · Last refreshed: May 7, 2026