Q78266691

Thing astrophysical_x_ray_source Q78266691

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Q78266691

Summary

Q78266691 is an astrophysical X-ray source^[1].

Key Facts

Q78266691's instance of is recorded as astrophysical X-ray source^[2].
Q78266691's instance of is recorded as BY Draconis variable^[3].
Q78266691's constellation is recorded as Lyra^[4].
Q78266691's catalog code is recorded as 1RXS J181705.0+435006^[5].
Q78266691's catalog code is recorded as Gaia DR2 2114874989275756416^[6].
Q78266691's catalog code is recorded as ROTSE1 J181705.18+434959.1^[7].
Q78266691's catalog code is recorded as 2MASS J18170525+4349595^[8].
Q78266691's catalog code is recorded as TYC 3115-1770-1^[9].
Q78266691's catalog code is recorded as GSC 03115-01770^[10].
Q78266691's catalog code is recorded as Gaia DR1 2114874984980155008^[11].
Q78266691's catalog code is recorded as V640 Lyr^[12].
Q78266691's type of variable star is recorded as BY Draconis variable^[13].
Q78266691's apparent magnitude is recorded as {'unit': '1', 'amount': '+11.1396'}^[14].
Q78266691's apparent magnitude is recorded as {'unit': '1', 'amount': '+12.02'}^[15].
Q78266691's apparent magnitude is recorded as {'unit': '1', 'amount': '+13.64'}^[16].
Q78266691's apparent magnitude is recorded as {'unit': '1', 'amount': '+9.732'}^[17].
Q78266691's apparent magnitude is recorded as {'unit': '1', 'amount': '+9.159'}^[18].
Q78266691's apparent magnitude is recorded as {'unit': '1', 'amount': '+8.987'}^[19].
Q78266691's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+1.5852'}^[20].
Q78266691's metallicity is recorded as {'unit': '1', 'amount': '+0.02'}^[21].
Q78266691's metallicity is recorded as {'unit': '1', 'amount': '+0.03'}^[22].
Q78266691's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+630.835'}^[23].
Q78266691's SIMBAD ID is recorded as ROTSE1 J181705.18+434959.1^[24].
Q78266691's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+274.2708083'}^[25].
Q78266691's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+274.27188222184590'}^[26].

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Quick Facts

Instance of astrophysical X-ray source, BY Draconis variable

Properties

Apparent magnitude unit: 1, amount: +11.1396, unit: 1, amount: +12.02, unit: 1, amount: +13.64, unit: 1, amount: +9.732, unit: 1, amount: +9.159, unit: 1, amount: +8.987

Catalog code 1RXS J181705.0+435006, Gaia DR2 2114874989275756416, ROTSE1 J181705.18+434959.1, 2MASS J18170525+4349595, TYC 3115-1770-1, GSC 03115-01770, Gaia DR1 2114874984980155008, V640 Lyr

Constellation Lyra

Declination unit: www.wikidata.org, amount: +43.8351389, unit: www.wikidata.org, amount: +43.83319406653806

Declination component of proper motion unit: www.wikidata.org, amount: -4.244

Distance from earth unit: www.wikidata.org, amount: +630.835

Effective temperature unit: www.wikidata.org, amount: +4890, unit: www.wikidata.org, amount: +4961

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Metallicity unit: 1, amount: +0.02, unit: 1, amount: +0.03

Parallax unit: www.wikidata.org, amount: +1.5852

Right ascension unit: www.wikidata.org, amount: +274.2708083, unit: www.wikidata.org, amount: +274.27188222184590

Right ascension component of proper motion unit: www.wikidata.org, amount: +3.086

Surface gravity unit: www.wikidata.org, amount: +4500, unit: www.wikidata.org, amount: +4600

Type of variable star BY Draconis variable

External References (2)

Gaia id 2114874989275756416

Simbad id ROTSE1 J181705.18+434959.1

🏷️ Also known as

ru V640 Лиры

References

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

Direct Wikidata claims

[2] ↑ Q78266691 — instance of (P31): astrophysical X-ray source. SIMBAD. wikidata.org.
[3] ↑ Q78266691 — instance of (P31): BY Draconis variable. SIMBAD. wikidata.org.
[4] ↑ Q78266691 — constellation (P59): Lyra. wikidata.org.
[5] ↑ Q78266691 — catalog code (P528): 1RXS J181705.0+435006. SIMBAD. wikidata.org.
[6] ↑ Q78266691 — catalog code (P528): Gaia DR2 2114874989275756416. SIMBAD. wikidata.org.
[7] ↑ Q78266691 — catalog code (P528): ROTSE1 J181705.18+434959.1. SIMBAD. wikidata.org.
[8] ↑ Q78266691 — catalog code (P528): 2MASS J18170525+4349595. SIMBAD. wikidata.org.
[9] ↑ Q78266691 — catalog code (P528): TYC 3115-1770-1. SIMBAD. wikidata.org.
[10] ↑ Q78266691 — catalog code (P528): GSC 03115-01770. SIMBAD. wikidata.org.
[11] ↑ Q78266691 — catalog code (P528): Gaia DR1 2114874984980155008. SIMBAD. wikidata.org.
[12] ↑ Q78266691 — catalog code (P528): V640 Lyr. wikidata.org.
[13] ↑ Q78266691 — type of variable star (P881): BY Draconis variable. Q56001295. wikidata.org.
[14] ↑ Q78266691 — apparent magnitude (P1215): {'unit': '1', 'amount': '+11.1396'}. Gaia Data Release 2. wikidata.org.
[15] ↑ Q78266691 — apparent magnitude (P1215): {'unit': '1', 'amount': '+12.02'}. The Tycho-2 catalogue of the 2.5 million brightest stars. wikidata.org.
[16] ↑ Q78266691 — apparent magnitude (P1215): {'unit': '1', 'amount': '+13.64'}. The Tycho-2 catalogue of the 2.5 million brightest stars. wikidata.org.
[17] ↑ Q78266691 — apparent magnitude (P1215): {'unit': '1', 'amount': '+9.732'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[18] ↑ Q78266691 — apparent magnitude (P1215): {'unit': '1', 'amount': '+9.159'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[19] ↑ Q78266691 — apparent magnitude (P1215): {'unit': '1', 'amount': '+8.987'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[20] ↑ Q78266691 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+1.5852'}. Gaia Data Release 2. wikidata.org.
[21] ↑ Q78266691 — metallicity (P2227): {'unit': '1', 'amount': '+0.02'}. Spectra of type II cepheid candidates and related stars. wikidata.org.
[22] ↑ Q78266691 — metallicity (P2227): {'unit': '1', 'amount': '+0.03'}. Spectra of type II cepheid candidates and related stars. wikidata.org.
[23] ↑ Q78266691 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+630.835'}. Gaia Data Release 2. wikidata.org.
[24] ↑ Q78266691 — SIMBAD ID (P3083): ROTSE1 J181705.18+434959.1. wikidata.org.
[25] ↑ Q78266691 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+274.2708083'}. ROSAT All-Sky Survey Faint Source Catalogue. wikidata.org.
[26] ↑ Q78266691 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+274.27188222184590'}. Gaia Data Release 2. wikidata.org.

Class ancestry

[1] ↑ Q78266691 is an instance of astrophysical X-ray source (Q2154519) [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). Q78266691. Retrieved May 7, 2026, from https://4ort.xyz/entity/q78266691

MLA “Q78266691.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q78266691.

BibTeX

@misc{4ortxyz_q78266691_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q78266691}}, year = {2026}, url = {https://4ort.xyz/entity/q78266691}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q78266691 — https://4ort.xyz/entity/q78266691 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q78266691 · Last refreshed: May 7, 2026