Q80985540

white dwarf in the constellation Boötes

Thing white_dwarf Q80985540

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Q80985540

Summary

Q80985540 is a white dwarf^[1].

Key Facts

Q80985540's instance of is recorded as white dwarf^[2].
Q80985540's constellation is recorded as Boötes^[3].
Q80985540's spectral class is recorded as DC+M^[4].
Q80985540's catalog code is recorded as SDSS J145238.12+204511.8^[5].
Q80985540's catalog code is recorded as 2MASS J14523818+2045121^[6].
Q80985540's catalog code is recorded as WISE J145238.08+204511.7^[7].
Q80985540's catalog code is recorded as USNO-B1.0 1107-00233657^[8].
Q80985540's catalog code is recorded as Gaia DR2 1238124314206289536^[9].
Q80985540's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.06'}^[10].
Q80985540's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.23'}^[11].
Q80985540's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.59'}^[12].
Q80985540's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.30'}^[13].
Q80985540's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.43'}^[14].
Q80985540's apparent magnitude is recorded as {'unit': '1', 'amount': '+14.81'}^[15].
Q80985540's apparent magnitude is recorded as {'unit': '1', 'amount': '+14.22'}^[16].
Q80985540's apparent magnitude is recorded as {'unit': '1', 'amount': '+13.94'}^[17].
Q80985540's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.1'}^[18].
Q80985540's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.4'}^[19].
Q80985540's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.9074'}^[20].
Q80985540's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+7.7952'}^[21].
Q80985540's metallicity is recorded as {'unit': '1', 'amount': '+0.0'}^[22].
Q80985540's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+128.2841'}^[23].
Q80985540's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+223.15900626944090'}^[24].
Q80985540's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+20.75336486300630'}^[25].
Q80985540's epoch is recorded as J2000.0^[26].

Body

Definition and Type

Q80985540's instance of is recorded as white dwarf^[2].

⭐ Popularity Graph

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Quick Facts

Instance of white dwarf

Properties

Apparent magnitude unit: 1, amount: +19.06, unit: 1, amount: +19.23, unit: 1, amount: +18.59, unit: 1, amount: +17.30, unit: 1, amount: +16.43, unit: 1, amount: +14.81, unit: 1, amount: +14.22, unit: 1, amount: +13.94, unit: 1, amount: +19.1, unit: 1, amount: +18.4, unit: 1, amount: +17.9074

Catalog code SDSS J145238.12+204511.8, 2MASS J14523818+2045121, WISE J145238.08+204511.7, USNO-B1.0 1107-00233657, Gaia DR2 1238124314206289536

Constellation Boötes

Declination unit: www.wikidata.org, amount: +20.75336486300630

Declination component of proper motion unit: www.wikidata.org, amount: -46.901

Distance from earth unit: www.wikidata.org, amount: +128.2841

Effective temperature unit: www.wikidata.org, amount: +3200

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Metallicity unit: 1, amount: +0.0

Parallax unit: www.wikidata.org, amount: +7.7952

Right ascension unit: www.wikidata.org, amount: +223.15900626944090

Right ascension component of proper motion unit: www.wikidata.org, amount: -118.063

Spectral class DC+M

External References (2)

Gaia id 1238124314206289536

Simbad id GALEX J145238.1+204513

References

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

Direct Wikidata claims

[2] ↑ Q80985540 — instance of (P31): white dwarf. SIMBAD. wikidata.org.
[3] ↑ Q80985540 — constellation (P59): Boötes. wikidata.org.
[4] ↑ Q80985540 — spectral class (P215): DC+M. White dwarf-main sequence binaries identified within SDSS DR7 and UKIDSS DR5. wikidata.org.
[5] ↑ Q80985540 — catalog code (P528): SDSS J145238.12+204511.8. SIMBAD. wikidata.org.
[6] ↑ Q80985540 — catalog code (P528): 2MASS J14523818+2045121. SIMBAD. wikidata.org.
[7] ↑ Q80985540 — catalog code (P528): WISE J145238.08+204511.7. SIMBAD. wikidata.org.
[8] ↑ Q80985540 — catalog code (P528): USNO-B1.0 1107-00233657. SIMBAD. wikidata.org.
[9] ↑ Q80985540 — catalog code (P528): Gaia DR2 1238124314206289536. SIMBAD. wikidata.org.
[10] ↑ Q80985540 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.06'}. White dwarf-main sequence binaries identified within SDSS DR7 and UKIDSS DR5. wikidata.org.
[11] ↑ Q80985540 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.23'}. White dwarf-main sequence binaries identified within SDSS DR7 and UKIDSS DR5. wikidata.org.
[12] ↑ Q80985540 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.59'}. White dwarf-main sequence binaries identified within SDSS DR7 and UKIDSS DR5. wikidata.org.
[13] ↑ Q80985540 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.30'}. White dwarf-main sequence binaries identified within SDSS DR7 and UKIDSS DR5. wikidata.org.
[14] ↑ Q80985540 — apparent magnitude (P1215): {'unit': '1', 'amount': '+16.43'}. White dwarf-main sequence binaries identified within SDSS DR7 and UKIDSS DR5. wikidata.org.
[15] ↑ Q80985540 — apparent magnitude (P1215): {'unit': '1', 'amount': '+14.81'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[16] ↑ Q80985540 — apparent magnitude (P1215): {'unit': '1', 'amount': '+14.22'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[17] ↑ Q80985540 — apparent magnitude (P1215): {'unit': '1', 'amount': '+13.94'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[18] ↑ Q80985540 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.1'}. The USNO-B Catalog. wikidata.org.
[19] ↑ Q80985540 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.4'}. The USNO-B Catalog. wikidata.org.
[20] ↑ Q80985540 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.9074'}. Gaia Data Release 2. wikidata.org.
[21] ↑ Q80985540 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+7.7952'}. Gaia Data Release 2. wikidata.org.
[22] ↑ Q80985540 — metallicity (P2227): {'unit': '1', 'amount': '+0.0'}. White dwarf-main sequence binaries identified within SDSS DR7 and UKIDSS DR5. wikidata.org.
[23] ↑ Q80985540 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+128.2841'}. Gaia Data Release 2. wikidata.org.
[24] ↑ Q80985540 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+223.15900626944090'}. Gaia Data Release 2. wikidata.org.
[25] ↑ Q80985540 — declination (P6258): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+20.75336486300630'}. Gaia Data Release 2. wikidata.org.
[26] ↑ Q80985540 — epoch (P6259): J2000.0. Gaia Data Release 2. wikidata.org.

Class ancestry

[1] ↑ Q80985540 is an instance of white dwarf (Q5871) [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). Q80985540. Retrieved May 7, 2026, from https://4ort.xyz/entity/q80985540

MLA “Q80985540.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q80985540.

BibTeX

@misc{4ortxyz_q80985540_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q80985540}}, year = {2026}, url = {https://4ort.xyz/entity/q80985540}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q80985540 — https://4ort.xyz/entity/q80985540 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q80985540 · Last refreshed: May 7, 2026