Q80644657

white dwarf in the constellation Cancer

Thing white_dwarf Q80644657

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Q80644657

Summary

Q80644657 is a white dwarf^[1].

Key Facts

Q80644657's instance of is recorded as white dwarf^[2].
Q80644657's constellation is recorded as Cancer^[3].
Q80644657's spectral class is recorded as DB/DBZ^[4].
Q80644657's catalog code is recorded as PG 0842+231^[5].
Q80644657's catalog code is recorded as Ton 345^[6].
Q80644657's catalog code is recorded as 2MASS J08453917+2257282^[7].
Q80644657's catalog code is recorded as SDSS J084539.17+225728.0^[8].
Q80644657's catalog code is recorded as SDSS J084539.18+225728.0^[9].
Q80644657's catalog code is recorded as WIRED J084539.17+225728.0^[10].
Q80644657's catalog code is recorded as WD 0842+231^[11].
Q80644657's catalog code is recorded as LAMOST J084539.17+225728.0^[12].
Q80644657's catalog code is recorded as Gaia DR2 689352219629097856^[13].
Q80644657's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.07'}^[14].
Q80644657's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.2'}^[15].
Q80644657's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.577'}^[16].
Q80644657's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.235'}^[17].
Q80644657's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.068'}^[18].
Q80644657's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.696'}^[19].
Q80644657's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.958'}^[20].
Q80644657's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.484'}^[21].
Q80644657's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.346'}^[22].
Q80644657's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.598'}^[23].
Q80644657's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.9002'}^[24].
Q80644657's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+9.3155'}^[25].
Q80644657's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+0'}^[26].

⭐ Popularity Graph

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Quick Facts

Instance of white dwarf

Properties

Apparent magnitude unit: 1, amount: +16.07, unit: 1, amount: +15.2, unit: 1, amount: +15.577, unit: 1, amount: +16.235, unit: 1, amount: +16.068, unit: 1, amount: +15.696, unit: 1, amount: +15.958, unit: 1, amount: +16.484, unit: 1, amount: +16.346, unit: 1, amount: +16.598, unit: 1, amount: +15.9002

Catalog code PG 0842+231, Ton 345, 2MASS J08453917+2257282, SDSS J084539.17+225728.0, SDSS J084539.18+225728.0, WIRED J084539.17+225728.0, WD 0842+231, LAMOST J084539.17+225728.0, Gaia DR2 689352219629097856

Constellation Cancer

Declination unit: www.wikidata.org, amount: +22.95784707373310

Declination component of proper motion unit: www.wikidata.org, amount: -61.629

Distance from earth unit: www.wikidata.org, amount: +107.3480

Effective temperature unit: www.wikidata.org, amount: +20360

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Parallax unit: www.wikidata.org, amount: +9.3155

Radial velocity unit: www.wikidata.org, amount: +0

Right ascension unit: www.wikidata.org, amount: +131.41325764623830

Right ascension component of proper motion unit: www.wikidata.org, amount: -14.826

Spectral class DB/DBZ

Surface gravity unit: www.wikidata.org, amount: +93500000

External References (2)

Gaia id 689352219629097856

Simbad id Ton 345

References

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

Direct Wikidata claims

[2] ↑ Q80644657 — instance of (P31): white dwarf. SIMBAD. wikidata.org.
[3] ↑ Q80644657 — constellation (P59): Cancer. wikidata.org.
[4] ↑ Q80644657 — spectral class (P215): DB/DBZ. SDSS DR7 white dwarf catalog. wikidata.org.
[5] ↑ Q80644657 — catalog code (P528): PG 0842+231. SIMBAD. wikidata.org.
[6] ↑ Q80644657 — catalog code (P528): Ton 345. SIMBAD. wikidata.org.
[7] ↑ Q80644657 — catalog code (P528): 2MASS J08453917+2257282. SIMBAD. wikidata.org.
[8] ↑ Q80644657 — catalog code (P528): SDSS J084539.17+225728.0. SIMBAD. wikidata.org.
[9] ↑ Q80644657 — catalog code (P528): SDSS J084539.18+225728.0. SIMBAD. wikidata.org.
[10] ↑ Q80644657 — catalog code (P528): WIRED J084539.17+225728.0. SIMBAD. wikidata.org.
[11] ↑ Q80644657 — catalog code (P528): WD 0842+231. SIMBAD. wikidata.org.
[12] ↑ Q80644657 — catalog code (P528): LAMOST J084539.17+225728.0. SIMBAD. wikidata.org.
[13] ↑ Q80644657 — catalog code (P528): Gaia DR2 689352219629097856. SIMBAD. wikidata.org.
[14] ↑ Q80644657 — apparent magnitude (P1215): {'unit': '1', 'amount': '+16.07'}. SIMBAD. wikidata.org.
[15] ↑ Q80644657 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.2'}. SIMBAD. wikidata.org.
[16] ↑ Q80644657 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.577'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[17] ↑ Q80644657 — apparent magnitude (P1215): {'unit': '1', 'amount': '+16.235'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[18] ↑ Q80644657 — apparent magnitude (P1215): {'unit': '1', 'amount': '+16.068'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[19] ↑ Q80644657 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.696'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[20] ↑ Q80644657 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.958'}. The WIRED survey. II. Infrared excesses in the SDSS DR7 white dwarf catalog. wikidata.org.
[21] ↑ Q80644657 — apparent magnitude (P1215): {'unit': '1', 'amount': '+16.484'}. The WIRED survey. II. Infrared excesses in the SDSS DR7 white dwarf catalog. wikidata.org.
[22] ↑ Q80644657 — apparent magnitude (P1215): {'unit': '1', 'amount': '+16.346'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[23] ↑ Q80644657 — apparent magnitude (P1215): {'unit': '1', 'amount': '+16.598'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[24] ↑ Q80644657 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.9002'}. Gaia Data Release 2. wikidata.org.
[25] ↑ Q80644657 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+9.3155'}. Gaia Data Release 2. wikidata.org.
[26] ↑ Q80644657 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+0'}. The SDSS Photometric Catalog, Release 6. wikidata.org.

Class ancestry

[1] ↑ Q80644657 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). Q80644657. Retrieved May 7, 2026, from https://4ort.xyz/entity/q80644657

MLA “Q80644657.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q80644657.

BibTeX

@misc{4ortxyz_q80644657_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q80644657}}, year = {2026}, url = {https://4ort.xyz/entity/q80644657}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q80644657 — https://4ort.xyz/entity/q80644657 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q80644657 · Last refreshed: May 7, 2026