Q87109480

white dwarf in the constellation Coma Berenices

Thing white_dwarf Q87109480

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Q87109480

Summary

Q87109480 is a white dwarf^[1].

Key Facts

Q87109480's instance of is recorded as white dwarf^[2].
Q87109480's constellation is recorded as Coma Berenices^[3].
Q87109480's spectral class is recorded as DA^[4].
Q87109480's catalog code is recorded as A3 476^[5].
Q87109480's catalog code is recorded as SDSS J123549.88+154319.2^[6].
Q87109480's catalog code is recorded as SDSS J123549.89+154319.3^[7].
Q87109480's catalog code is recorded as SDSS J123549.88+154319.3^[8].
Q87109480's catalog code is recorded as LAMOST J123549.88+154319.3^[9].
Q87109480's catalog code is recorded as Gaia DR2 3933557828245537152^[10].
Q87109480's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.9'}^[11].
Q87109480's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.91'}^[12].
Q87109480's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.0'}^[13].
Q87109480's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.506'}^[14].
Q87109480's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.328'}^[15].
Q87109480's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.942'}^[16].
Q87109480's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.206'}^[17].
Q87109480's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.668'}^[18].
Q87109480's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.5392'}^[19].
Q87109480's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+2.3319'}^[20].
Q87109480's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+428.8349'}^[21].
Q87109480's SIMBAD ID is recorded as A3 476^[22].
Q87109480's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+188.95786925809370'}^[23].
Q87109480's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+15.72204551859440'}^[24].
Q87109480's epoch is recorded as J2000.0^[25].
Q87109480's effective temperature is recorded as {'unit': 'http://www.wikidata.org/entity/Q11579', 'amount': '+21070'}^[26].

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Quick Facts

Instance of white dwarf

Properties

Apparent magnitude unit: 1, amount: +16.9, unit: 1, amount: +17.91, unit: 1, amount: +18.0, unit: 1, amount: +17.506, unit: 1, amount: +17.328, unit: 1, amount: +17.942, unit: 1, amount: +18.206, unit: 1, amount: +17.668, unit: 1, amount: +17.5392

Catalog code A3 476, SDSS J123549.88+154319.2, SDSS J123549.89+154319.3, SDSS J123549.88+154319.3, LAMOST J123549.88+154319.3, Gaia DR2 3933557828245537152

Constellation Coma Berenices

Declination unit: www.wikidata.org, amount: +15.72204551859440

Declination component of proper motion unit: www.wikidata.org, amount: -25.590

Distance from earth unit: www.wikidata.org, amount: +428.8349

Effective temperature unit: www.wikidata.org, amount: +21070

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Parallax unit: www.wikidata.org, amount: +2.3319

Right ascension unit: www.wikidata.org, amount: +188.95786925809370

Right ascension component of proper motion unit: www.wikidata.org, amount: -32.573

Spectral class DA

Surface gravity unit: www.wikidata.org, amount: +13500000

External References (2)

Gaia id 3933557828245537152

Simbad id A3 476

References

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

Direct Wikidata claims

[2] ↑ Q87109480 — instance of (P31): white dwarf. SIMBAD. wikidata.org.
[3] ↑ Q87109480 — constellation (P59): Coma Berenices. wikidata.org.
[4] ↑ Q87109480 — spectral class (P215): DA. DA white dwarfs in Sloan Digital Sky Survey Data Release 7 and a search for infrared excess emission. wikidata.org.
[5] ↑ Q87109480 — catalog code (P528): A3 476. SIMBAD. wikidata.org.
[6] ↑ Q87109480 — catalog code (P528): SDSS J123549.88+154319.2. SIMBAD. wikidata.org.
[7] ↑ Q87109480 — catalog code (P528): SDSS J123549.89+154319.3. SIMBAD. wikidata.org.
[8] ↑ Q87109480 — catalog code (P528): SDSS J123549.88+154319.3. SIMBAD. wikidata.org.
[9] ↑ Q87109480 — catalog code (P528): LAMOST J123549.88+154319.3. SIMBAD. wikidata.org.
[10] ↑ Q87109480 — catalog code (P528): Gaia DR2 3933557828245537152. SIMBAD. wikidata.org.
[11] ↑ Q87109480 — apparent magnitude (P1215): {'unit': '1', 'amount': '+16.9'}. SIMBAD. wikidata.org.
[12] ↑ Q87109480 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.91'}. DA white dwarfs in Sloan Digital Sky Survey Data Release 7 and a search for infrared excess emission. wikidata.org.
[13] ↑ Q87109480 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.0'}. DA white dwarfs in Sloan Digital Sky Survey Data Release 7 and a search for infrared excess emission. wikidata.org.
[14] ↑ Q87109480 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.506'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[15] ↑ Q87109480 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.328'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[16] ↑ Q87109480 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.942'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[17] ↑ Q87109480 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.206'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[18] ↑ Q87109480 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.668'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[19] ↑ Q87109480 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.5392'}. Gaia Data Release 2. wikidata.org.
[20] ↑ Q87109480 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+2.3319'}. Gaia Data Release 2. wikidata.org.
[21] ↑ Q87109480 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+428.8349'}. Gaia Data Release 2. wikidata.org.
[22] ↑ Q87109480 — SIMBAD ID (P3083): A3 476. wikidata.org.
[23] ↑ Q87109480 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+188.95786925809370'}. Gaia Data Release 2. wikidata.org.
[24] ↑ Q87109480 — declination (P6258): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+15.72204551859440'}. Gaia Data Release 2. wikidata.org.
[25] ↑ Q87109480 — epoch (P6259): J2000.0. Gaia Data Release 2. wikidata.org.
[26] ↑ Q87109480 — effective temperature (P6879): {'unit': 'http://www.wikidata.org/entity/Q11579', 'amount': '+21070'}. SDSS DR7 white dwarf catalog. wikidata.org.

Class ancestry

[1] ↑ Q87109480 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). Q87109480. Retrieved May 7, 2026, from https://4ort.xyz/entity/q87109480

MLA “Q87109480.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q87109480.

BibTeX

@misc{4ortxyz_q87109480_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q87109480}}, year = {2026}, url = {https://4ort.xyz/entity/q87109480}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q87109480 — https://4ort.xyz/entity/q87109480 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q87109480 · Last refreshed: May 7, 2026