Q86640144

white dwarf in the constellation Boötes

Thing white_dwarf Q86640144

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Q86640144

Summary

Q86640144 is a white dwarf^[1].

Key Facts

Q86640144's instance of is recorded as white dwarf^[2].
Q86640144's constellation is recorded as Boötes^[3].
Q86640144's spectral class is recorded as DC^[4].
Q86640144's catalog code is recorded as USNO-B1.0 1444-00236388^[5].
Q86640144's catalog code is recorded as LSPM J1447+5427^[6].
Q86640144's catalog code is recorded as SDSS J144701.84+542744.5^[7].
Q86640144's catalog code is recorded as WD 1445+546^[8].
Q86640144's catalog code is recorded as Gaia DR2 1606475479904001792^[9].
Q86640144's apparent magnitude is recorded as {'unit': '1', 'amount': '+20.4'}^[10].
Q86640144's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.8'}^[11].
Q86640144's apparent magnitude is recorded as {'unit': '1', 'amount': '+21.306'}^[12].
Q86640144's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.26'}^[13].
Q86640144's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.20'}^[14].
Q86640144's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.07'}^[15].
Q86640144's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.430'}^[16].
Q86640144's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.630'}^[17].
Q86640144's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.349'}^[18].
Q86640144's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.244'}^[19].
Q86640144's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.7151'}^[20].
Q86640144's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+12.9100'}^[21].
Q86640144's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+77.4593'}^[22].
Q86640144's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+221.75796099173730'}^[23].
Q86640144's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+54.46234954153270'}^[24].
Q86640144's epoch is recorded as J2000.0^[25].
Q86640144's effective temperature is recorded as {'unit': 'http://www.wikidata.org/entity/Q11579', 'amount': '+4750'}^[26].

Body

Definition and Type

Q86640144'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: +20.4, unit: 1, amount: +18.8, unit: 1, amount: +21.306, unit: 1, amount: +17.26, unit: 1, amount: +17.20, unit: 1, amount: +17.07, unit: 1, amount: +19.430, unit: 1, amount: +18.630, unit: 1, amount: +18.349, unit: 1, amount: +18.244, unit: 1, amount: +18.7151

Catalog code USNO-B1.0 1444-00236388, LSPM J1447+5427, SDSS J144701.84+542744.5, WD 1445+546, Gaia DR2 1606475479904001792

Constellation Boötes

Declination unit: www.wikidata.org, amount: +54.46234954153270

Declination component of proper motion unit: www.wikidata.org, amount: +26.348

Distance from earth unit: www.wikidata.org, amount: +77.4593

Effective temperature unit: www.wikidata.org, amount: +4750

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Parallax unit: www.wikidata.org, amount: +12.9100

Right ascension unit: www.wikidata.org, amount: +221.75796099173730

Right ascension component of proper motion unit: www.wikidata.org, amount: -235.467

Spectral class DC

Surface gravity unit: www.wikidata.org, amount: +110000000

External References (2)

Gaia id 1606475479904001792

Simbad id LSPM J1447+5427

References

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

Direct Wikidata claims

[2] ↑ Q86640144 — instance of (P31): white dwarf. SIMBAD. wikidata.org.
[3] ↑ Q86640144 — constellation (P59): Boötes. wikidata.org.
[4] ↑ Q86640144 — spectral class (P215): DC. A detailed model atmosphere analysis of cool white dwarfs in the Sloan Digital Sky Survey. wikidata.org.
[5] ↑ Q86640144 — catalog code (P528): USNO-B1.0 1444-00236388. SIMBAD. wikidata.org.
[6] ↑ Q86640144 — catalog code (P528): LSPM J1447+5427. SIMBAD. wikidata.org.
[7] ↑ Q86640144 — catalog code (P528): SDSS J144701.84+542744.5. SIMBAD. wikidata.org.
[8] ↑ Q86640144 — catalog code (P528): WD 1445+546. SIMBAD. wikidata.org.
[9] ↑ Q86640144 — catalog code (P528): Gaia DR2 1606475479904001792. SIMBAD. wikidata.org.
[10] ↑ Q86640144 — apparent magnitude (P1215): {'unit': '1', 'amount': '+20.4'}. The USNO-B Catalog. wikidata.org.
[11] ↑ Q86640144 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.8'}. The USNO-B Catalog. wikidata.org.
[12] ↑ Q86640144 — apparent magnitude (P1215): {'unit': '1', 'amount': '+21.306'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[13] ↑ Q86640144 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.26'}. A detailed model atmosphere analysis of cool white dwarfs in the Sloan Digital Sky Survey. wikidata.org.
[14] ↑ Q86640144 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.20'}. A detailed model atmosphere analysis of cool white dwarfs in the Sloan Digital Sky Survey. wikidata.org.
[15] ↑ Q86640144 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.07'}. A detailed model atmosphere analysis of cool white dwarfs in the Sloan Digital Sky Survey. wikidata.org.
[16] ↑ Q86640144 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.430'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[17] ↑ Q86640144 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.630'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[18] ↑ Q86640144 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.349'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[19] ↑ Q86640144 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.244'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[20] ↑ Q86640144 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.7151'}. Gaia Data Release 2. wikidata.org.
[21] ↑ Q86640144 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+12.9100'}. Gaia Data Release 2. wikidata.org.
[22] ↑ Q86640144 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+77.4593'}. Gaia Data Release 2. wikidata.org.
[23] ↑ Q86640144 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+221.75796099173730'}. Gaia Data Release 2. wikidata.org.
[24] ↑ Q86640144 — declination (P6258): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+54.46234954153270'}. Gaia Data Release 2. wikidata.org.
[25] ↑ Q86640144 — epoch (P6259): J2000.0. Gaia Data Release 2. wikidata.org.
[26] ↑ Q86640144 — effective temperature (P6879): {'unit': 'http://www.wikidata.org/entity/Q11579', 'amount': '+4750'}. Ultracool white dwarfs and the age of the Galactic disc. wikidata.org.

Class ancestry

[1] ↑ Q86640144 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). Q86640144. Retrieved May 7, 2026, from https://4ort.xyz/entity/q86640144

MLA “Q86640144.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q86640144.

BibTeX

@misc{4ortxyz_q86640144_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q86640144}}, year = {2026}, url = {https://4ort.xyz/entity/q86640144}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q86640144 — https://4ort.xyz/entity/q86640144 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q86640144 · Last refreshed: May 7, 2026