Q87985374

white dwarf in the constellation Ursa Major

Thing white_dwarf Q87985374

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Q87985374

Summary

Q87985374 is a white dwarf^[1].

Key Facts

Q87985374's instance of is recorded as white dwarf^[2].
Q87985374's constellation is recorded as Ursa Major^[3].
Q87985374's spectral class is recorded as DA+M^[4].
Q87985374's catalog code is recorded as SDSS J101928.10+570804.2^[5].
Q87985374's catalog code is recorded as [HHD2009] SDSS J1019+5708^[6].
Q87985374's catalog code is recorded as [SLH2007] J101928.10+570804.6^[7].
Q87985374's catalog code is recorded as [RGS2010] J101928.10+570804.3^[8].
Q87985374's catalog code is recorded as SDSS J101928.10+570804.3^[9].
Q87985374's catalog code is recorded as WD 1016+573^[10].
Q87985374's catalog code is recorded as Gaia DR2 1045574986092243712^[11].
Q87985374's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.515'}^[12].
Q87985374's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.356'}^[13].
Q87985374's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.990'}^[14].
Q87985374's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.779'}^[15].
Q87985374's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.282'}^[16].
Q87985374's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.6856'}^[17].
Q87985374's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+0.7247'}^[18].
Q87985374's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-24'}^[19].
Q87985374's metallicity is recorded as {'unit': '1', 'amount': '-1.0'}^[20].
Q87985374's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+352.9'}^[21].
Q87985374's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+1493.0'}^[22].
Q87985374's SIMBAD ID is recorded as SDSS J101928.10+570804.2^[23].
Q87985374's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+154.86711770342020'}^[24].
Q87985374's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+57.13453027909800'}^[25].
Q87985374's epoch is recorded as J2000.0^[26].

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Quick Facts

Instance of white dwarf

Properties

Apparent magnitude unit: 1, amount: +19.515, unit: 1, amount: +19.356, unit: 1, amount: +17.990, unit: 1, amount: +18.779, unit: 1, amount: +18.282, unit: 1, amount: +18.6856

Catalog code SDSS J101928.10+570804.2, [HHD2009] SDSS J1019+5708, [SLH2007] J101928.10+570804.6, [RGS2010] J101928.10+570804.3, SDSS J101928.10+570804.3, WD 1016+573, Gaia DR2 1045574986092243712

Constellation Ursa Major

Declination unit: www.wikidata.org, amount: +57.13453027909800

Declination component of proper motion unit: www.wikidata.org, amount: -3.760

Distance from earth unit: www.wikidata.org, amount: +352.9, unit: www.wikidata.org, amount: +1493.0

Effective temperature unit: www.wikidata.org, amount: +6300

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Metallicity unit: 1, amount: -1.0

Parallax unit: www.wikidata.org, amount: +0.7247

Radial velocity unit: www.wikidata.org, amount: -24

Right ascension unit: www.wikidata.org, amount: +154.86711770342020

Right ascension component of proper motion unit: www.wikidata.org, amount: -11.318

Spectral class DA+M

External References (2)

Gaia id 1045574986092243712

Simbad id SDSS J101928.10+570804.2

References

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

Direct Wikidata claims

[2] ↑ Q87985374 — instance of (P31): white dwarf. SIMBAD. wikidata.org.
[3] ↑ Q87985374 — constellation (P59): Ursa Major. wikidata.org.
[4] ↑ Q87985374 — spectral class (P215): DA+M. Spectral analysis of 636 white dwarf-M star binaries from the Sloan Digital Sky Survey. wikidata.org.
[5] ↑ Q87985374 — catalog code (P528): SDSS J101928.10+570804.2. SIMBAD. wikidata.org.
[6] ↑ Q87985374 — catalog code (P528): [HHD2009] SDSS J1019+5708. SIMBAD. wikidata.org.
[7] ↑ Q87985374 — catalog code (P528): [SLH2007] J101928.10+570804.6. SIMBAD. wikidata.org.
[8] ↑ Q87985374 — catalog code (P528): [RGS2010] J101928.10+570804.3. SIMBAD. wikidata.org.
[9] ↑ Q87985374 — catalog code (P528): SDSS J101928.10+570804.3. SIMBAD. wikidata.org.
[10] ↑ Q87985374 — catalog code (P528): WD 1016+573. SIMBAD. wikidata.org.
[11] ↑ Q87985374 — catalog code (P528): Gaia DR2 1045574986092243712. SIMBAD. wikidata.org.
[12] ↑ Q87985374 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.515'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[13] ↑ Q87985374 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.356'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[14] ↑ Q87985374 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.990'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[15] ↑ Q87985374 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.779'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[16] ↑ Q87985374 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.282'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[17] ↑ Q87985374 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.6856'}. Gaia Data Release 2. wikidata.org.
[18] ↑ Q87985374 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+0.7247'}. Gaia Data Release 2. wikidata.org.
[19] ↑ Q87985374 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-24'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[20] ↑ Q87985374 — metallicity (P2227): {'unit': '1', 'amount': '-1.0'}. Spectral analysis of 636 white dwarf-M star binaries from the Sloan Digital Sky Survey. wikidata.org.
[21] ↑ Q87985374 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+352.9'}. Spectral analysis of 636 white dwarf-M star binaries from the Sloan Digital Sky Survey. wikidata.org.
[22] ↑ Q87985374 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+1493.0'}. Spectral analysis of 636 white dwarf-M star binaries from the Sloan Digital Sky Survey. wikidata.org.
[23] ↑ Q87985374 — SIMBAD ID (P3083): SDSS J101928.10+570804.2. wikidata.org.
[24] ↑ Q87985374 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+154.86711770342020'}. Gaia Data Release 2. wikidata.org.
[25] ↑ Q87985374 — declination (P6258): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+57.13453027909800'}. Gaia Data Release 2. wikidata.org.
[26] ↑ Q87985374 — epoch (P6259): J2000.0. Gaia Data Release 2. wikidata.org.

Class ancestry

[1] ↑ Q87985374 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). Q87985374. Retrieved May 7, 2026, from https://4ort.xyz/entity/q87985374

MLA “Q87985374.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q87985374.

BibTeX

@misc{4ortxyz_q87985374_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q87985374}}, year = {2026}, url = {https://4ort.xyz/entity/q87985374}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q87985374 — https://4ort.xyz/entity/q87985374 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q87985374 · Last refreshed: May 7, 2026