Q81498317

white dwarf in the constellation Boötes

Thing white_dwarf Q81498317

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Q81498317

Summary

Q81498317 is a white dwarf^[1].

Key Facts

Q81498317's instance of is recorded as white dwarf^[2].
Q81498317's constellation is recorded as Boötes^[3].
Q81498317's spectral class is recorded as DA^[4].
Q81498317's catalog code is recorded as PB 2225^[5].
Q81498317's catalog code is recorded as SDSS J142234.08+435105.6^[6].
Q81498317's catalog code is recorded as SDSS J142234.09+435105.6^[7].
Q81498317's catalog code is recorded as WD 1420+440^[8].
Q81498317's catalog code is recorded as SDSS J142234.09+435105.5^[9].
Q81498317's catalog code is recorded as Gaia DR2 1492783061310414080^[10].
Q81498317's redshift is recorded as {'unit': '1', 'amount': '+0.00041'}^[11].
Q81498317's apparent magnitude is recorded as {'unit': '1', 'amount': '+19'}^[12].
Q81498317's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.67'}^[13].
Q81498317's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.550'}^[14].
Q81498317's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.610'}^[15].
Q81498317's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.998'}^[16].
Q81498317's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.297'}^[17].
Q81498317's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.8576'}^[18].
Q81498317's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+1.2126'}^[19].
Q81498317's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+123'}^[20].
Q81498317's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+685'}^[21].
Q81498317's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+203'}^[22].
Q81498317's SIMBAD ID is recorded as PB 2225^[23].
Q81498317's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+215.64204214133020'}^[24].
Q81498317's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+43.85154659667710'}^[25].
Q81498317's epoch is recorded as J2000.0^[26].

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Quick Facts

Instance of white dwarf

Properties

Apparent magnitude unit: 1, amount: +19, unit: 1, amount: +19.67, unit: 1, amount: +18.550, unit: 1, amount: +18.610, unit: 1, amount: +18.998, unit: 1, amount: +19.297, unit: 1, amount: +18.8576

Catalog code PB 2225, SDSS J142234.08+435105.6, SDSS J142234.09+435105.6, WD 1420+440, SDSS J142234.09+435105.5, Gaia DR2 1492783061310414080

Constellation Boötes

Declination unit: www.wikidata.org, amount: +43.85154659667710

Declination component of proper motion unit: www.wikidata.org, amount: -1.750

Distance from earth unit: www.wikidata.org, amount: +685, unit: www.wikidata.org, amount: +203

Effective temperature unit: www.wikidata.org, amount: +23640

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Parallax unit: www.wikidata.org, amount: +1.2126

Radial velocity unit: www.wikidata.org, amount: +123

Redshift unit: 1, amount: +0.00041

Right ascension unit: www.wikidata.org, amount: +215.64204214133020

Right ascension component of proper motion unit: www.wikidata.org, amount: +1.835

Spectral class DA

Surface gravity unit: www.wikidata.org, amount: +29500000

External References (2)

Gaia id 1492783061310414080

Simbad id PB 2225

References

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

Direct Wikidata claims

[2] ↑ Q81498317 — instance of (P31): white dwarf. SIMBAD. wikidata.org.
[3] ↑ Q81498317 — constellation (P59): Boötes. wikidata.org.
[4] ↑ Q81498317 — spectral class (P215): DA. A Catalog of Spectroscopically Confirmed White Dwarfs from the Sloan Digital Sky Survey Data Release 4. wikidata.org.
[5] ↑ Q81498317 — catalog code (P528): PB 2225. SIMBAD. wikidata.org.
[6] ↑ Q81498317 — catalog code (P528): SDSS J142234.08+435105.6. SIMBAD. wikidata.org.
[7] ↑ Q81498317 — catalog code (P528): SDSS J142234.09+435105.6. SIMBAD. wikidata.org.
[8] ↑ Q81498317 — catalog code (P528): WD 1420+440. SIMBAD. wikidata.org.
[9] ↑ Q81498317 — catalog code (P528): SDSS J142234.09+435105.5. SIMBAD. wikidata.org.
[10] ↑ Q81498317 — catalog code (P528): Gaia DR2 1492783061310414080. SIMBAD. wikidata.org.
[11] ↑ Q81498317 — redshift (P1090): {'unit': '1', 'amount': '+0.00041'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[12] ↑ Q81498317 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19'}. SIMBAD. wikidata.org.
[13] ↑ Q81498317 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.67'}. DA white dwarfs in Sloan Digital Sky Survey Data Release 7 and a search for infrared excess emission. wikidata.org.
[14] ↑ Q81498317 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.550'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[15] ↑ Q81498317 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.610'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[16] ↑ Q81498317 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.998'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[17] ↑ Q81498317 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.297'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[18] ↑ Q81498317 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.8576'}. Gaia Data Release 2. wikidata.org.
[19] ↑ Q81498317 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+1.2126'}. Gaia Data Release 2. wikidata.org.
[20] ↑ Q81498317 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+123'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[21] ↑ Q81498317 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+685'}. DA white dwarfs in Sloan Digital Sky Survey Data Release 7 and a search for infrared excess emission. wikidata.org.
[22] ↑ Q81498317 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+203'}. DA white dwarfs in Sloan Digital Sky Survey Data Release 7 and a search for infrared excess emission. wikidata.org.
[23] ↑ Q81498317 — SIMBAD ID (P3083): PB 2225. wikidata.org.
[24] ↑ Q81498317 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+215.64204214133020'}. Gaia Data Release 2. wikidata.org.
[25] ↑ Q81498317 — declination (P6258): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+43.85154659667710'}. Gaia Data Release 2. wikidata.org.
[26] ↑ Q81498317 — epoch (P6259): J2000.0. Gaia Data Release 2. wikidata.org.

Class ancestry

[1] ↑ Q81498317 is an instance of white dwarf (Q5871) [P31, primary]. Wikidata. wikidata.org.

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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). Q81498317. Retrieved May 7, 2026, from https://4ort.xyz/entity/q81498317

MLA “Q81498317.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q81498317.

BibTeX

@misc{4ortxyz_q81498317_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q81498317}}, year = {2026}, url = {https://4ort.xyz/entity/q81498317}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q81498317 — https://4ort.xyz/entity/q81498317 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q81498317 · Last refreshed: May 7, 2026