Q89591440

Thing by_draconis_variable Q89591440

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Q89591440

Summary

Q89591440 is a BY Draconis variable^[1].

Key Facts

Q89591440's instance of is recorded as BY Draconis variable^[2].
Q89591440's constellation is recorded as Perseus^[3].
Q89591440's catalog code is recorded as 2MASS J03365364+4823580^[4].
Q89591440's catalog code is recorded as Cl* Melotte 20 AP 226^[5].
Q89591440's catalog code is recorded as GSC 03317-00377^[6].
Q89591440's catalog code is recorded as UCAC4 692-023169^[7].
Q89591440's catalog code is recorded as Gaia DR2 249032477384977024^[8].
Q89591440's catalog code is recorded as V541 Per^[9].
Q89591440's apparent magnitude is recorded as {'unit': '1', 'amount': '+9.977'}^[10].
Q89591440's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.066'}^[11].
Q89591440's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.573'}^[12].
Q89591440's apparent magnitude is recorded as {'unit': '1', 'amount': '+13.05'}^[13].
Q89591440's apparent magnitude is recorded as {'unit': '1', 'amount': '+12.13'}^[14].
Q89591440's apparent magnitude is recorded as {'unit': '1', 'amount': '+12.13'}^[15].
Q89591440's apparent magnitude is recorded as {'unit': '1', 'amount': '+12.77'}^[16].
Q89591440's apparent magnitude is recorded as {'unit': '1', 'amount': '+11.89'}^[17].
Q89591440's apparent magnitude is recorded as {'unit': '1', 'amount': '+11.51'}^[18].
Q89591440's apparent magnitude is recorded as {'unit': '1', 'amount': '+12.0767'}^[19].
Q89591440's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+5.640'}^[20].
Q89591440's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-19.91'}^[21].
Q89591440's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+177.1542'}^[22].
Q89591440's SIMBAD ID is recorded as V* V541 Per^[23].
Q89591440's stellar rotational velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+181.0'}^[24].
Q89591440's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+54.22358250425490'}^[25].
Q89591440's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+48.39944913225730'}^[26].

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Quick Facts

Instance of BY Draconis variable

Properties

Apparent magnitude unit: 1, amount: +9.977, unit: 1, amount: +10.066, unit: 1, amount: +10.573, unit: 1, amount: +13.05, unit: 1, amount: +12.13, unit: 1, amount: +12.13, unit: 1, amount: +12.77, unit: 1, amount: +11.89, unit: 1, amount: +11.51, unit: 1, amount: +12.0767

Catalog code 2MASS J03365364+4823580, Cl* Melotte 20 AP 226, GSC 03317-00377, UCAC4 692-023169, Gaia DR2 249032477384977024, V541 Per

Constellation Perseus

Declination unit: www.wikidata.org, amount: +48.39944913225730

Declination component of proper motion unit: www.wikidata.org, amount: -25.742

Distance from earth unit: www.wikidata.org, amount: +177.1542

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Parallax unit: www.wikidata.org, amount: +5.640

Radial velocity unit: www.wikidata.org, amount: -19.91

Right ascension unit: www.wikidata.org, amount: +54.22358250425490

Right ascension component of proper motion unit: www.wikidata.org, amount: +21.909

Stellar rotational velocity unit: www.wikidata.org, amount: +181.0

External References (2)

Gaia id 249032477384977024

Simbad id V* V541 Per

🏷️ Also known as

ru V541 Персея

References

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

Direct Wikidata claims

[2] ↑ Q89591440 — instance of (P31): BY Draconis variable. SIMBAD. wikidata.org.
[3] ↑ Q89591440 — constellation (P59): Perseus. wikidata.org.
[4] ↑ Q89591440 — catalog code (P528): 2MASS J03365364+4823580. SIMBAD. wikidata.org.
[5] ↑ Q89591440 — catalog code (P528): Cl* Melotte 20 AP 226. SIMBAD. wikidata.org.
[6] ↑ Q89591440 — catalog code (P528): GSC 03317-00377. SIMBAD. wikidata.org.
[7] ↑ Q89591440 — catalog code (P528): UCAC4 692-023169. SIMBAD. wikidata.org.
[8] ↑ Q89591440 — catalog code (P528): Gaia DR2 249032477384977024. SIMBAD. wikidata.org.
[9] ↑ Q89591440 — catalog code (P528): V541 Per. wikidata.org.
[10] ↑ Q89591440 — apparent magnitude (P1215): {'unit': '1', 'amount': '+9.977'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[11] ↑ Q89591440 — apparent magnitude (P1215): {'unit': '1', 'amount': '+10.066'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[12] ↑ Q89591440 — apparent magnitude (P1215): {'unit': '1', 'amount': '+10.573'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[13] ↑ Q89591440 — apparent magnitude (P1215): {'unit': '1', 'amount': '+13.05'}. Fourth USNO CCD Astrograph Catalog. wikidata.org.
[14] ↑ Q89591440 — apparent magnitude (P1215): {'unit': '1', 'amount': '+12.13'}. Fourth USNO CCD Astrograph Catalog. wikidata.org.
[15] ↑ Q89591440 — apparent magnitude (P1215): {'unit': '1', 'amount': '+12.13'}. Fourth USNO CCD Astrograph Catalog. wikidata.org.
[16] ↑ Q89591440 — apparent magnitude (P1215): {'unit': '1', 'amount': '+12.77'}. Fourth USNO CCD Astrograph Catalog. wikidata.org.
[17] ↑ Q89591440 — apparent magnitude (P1215): {'unit': '1', 'amount': '+11.89'}. Fourth USNO CCD Astrograph Catalog. wikidata.org.
[18] ↑ Q89591440 — apparent magnitude (P1215): {'unit': '1', 'amount': '+11.51'}. Fourth USNO CCD Astrograph Catalog. wikidata.org.
[19] ↑ Q89591440 — apparent magnitude (P1215): {'unit': '1', 'amount': '+12.0767'}. Gaia Data Release 2. wikidata.org.
[20] ↑ Q89591440 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+5.640'}. Gaia Data Release 2. Observational Hertzsprung-Russell diagrams. wikidata.org.
[21] ↑ Q89591440 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-19.91'}. Gaia Data Release 2. wikidata.org.
[22] ↑ Q89591440 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+177.1542'}. Gaia Data Release 2. wikidata.org.
[23] ↑ Q89591440 — SIMBAD ID (P3083): V* V541 Per. wikidata.org.
[24] ↑ Q89591440 — stellar rotational velocity (P4296): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+181.0'}. Are the spin axes of stars randomly aligned within a cluster ?. wikidata.org.
[25] ↑ Q89591440 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+54.22358250425490'}. Gaia Data Release 2. wikidata.org.
[26] ↑ Q89591440 — declination (P6258): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+48.39944913225730'}. Gaia Data Release 2. wikidata.org.

Class ancestry

[1] ↑ Q89591440 is an instance of BY Draconis variable (Q797219) [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). Q89591440. Retrieved May 7, 2026, from https://4ort.xyz/entity/q89591440

MLA “Q89591440.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q89591440.

BibTeX

@misc{4ortxyz_q89591440_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q89591440}}, year = {2026}, url = {https://4ort.xyz/entity/q89591440}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q89591440 — https://4ort.xyz/entity/q89591440 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q89591440 · Last refreshed: May 7, 2026