Q81753791

white dwarf in the constellation Ursa Major

Thing white_dwarf Q81753791

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Q81753791

Summary

Q81753791 is a white dwarf^[1].

Key Facts

Q81753791's instance of is recorded as white dwarf^[2].
Q81753791's constellation is recorded as Ursa Major^[3].
Q81753791's spectral class is recorded as DA:^[4].
Q81753791's catalog code is recorded as SDSS J130230.73+565747.3^[5].
Q81753791's catalog code is recorded as Gaia DR2 1576983485669875200^[6].
Q81753791's apparent magnitude is recorded as {'unit': '1', 'amount': '+20.643'}^[7].
Q81753791's apparent magnitude is recorded as {'unit': '1', 'amount': '+20.062'}^[8].
Q81753791's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.930'}^[9].
Q81753791's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.818'}^[10].
Q81753791's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.959'}^[11].
Q81753791's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.9217'}^[12].
Q81753791's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+5.2360'}^[13].
Q81753791's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+190.9855'}^[14].
Q81753791's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+195.62811677863120'}^[15].
Q81753791's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+56.96310504702900'}^[16].
Q81753791's epoch is recorded as J2000.0^[17].
Q81753791's effective temperature is recorded as {'unit': 'http://www.wikidata.org/entity/Q11579', 'amount': '+7139'}^[18].
Q81753791's surface gravity is recorded as {'unit': 'http://www.wikidata.org/entity/Q39699418', 'amount': '+17200000'}^[19].
Q81753791's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-48.670'}^[20].
Q81753791's right ascension component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-47.484'}^[21].

Body

Definition and Type

Q81753791'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: +20.643, unit: 1, amount: +20.062, unit: 1, amount: +19.930, unit: 1, amount: +19.818, unit: 1, amount: +19.959, unit: 1, amount: +19.9217

Catalog code SDSS J130230.73+565747.3, Gaia DR2 1576983485669875200

Constellation Ursa Major

Declination unit: www.wikidata.org, amount: +56.96310504702900

Declination component of proper motion unit: www.wikidata.org, amount: -48.670

Distance from earth unit: www.wikidata.org, amount: +190.9855

Effective temperature unit: www.wikidata.org, amount: +7139

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Parallax unit: www.wikidata.org, amount: +5.2360

Right ascension unit: www.wikidata.org, amount: +195.62811677863120

Right ascension component of proper motion unit: www.wikidata.org, amount: -47.484

Spectral class DA:

Surface gravity unit: www.wikidata.org, amount: +17200000

External References (2)

Gaia id 1576983485669875200

Simbad id SDSS J130230.73+565747.3

References

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

Direct Wikidata claims

[2] ↑ Q81753791 — instance of (P31): white dwarf. SIMBAD. wikidata.org.
[3] ↑ Q81753791 — constellation (P59): Ursa Major. wikidata.org.
[4] ↑ Q81753791 — spectral class (P215): DA:. New white dwarf and subdwarf stars in the Sloan Digital Sky Survey Data Release 12. wikidata.org.
[5] ↑ Q81753791 — catalog code (P528): SDSS J130230.73+565747.3. SIMBAD. wikidata.org.
[6] ↑ Q81753791 — catalog code (P528): Gaia DR2 1576983485669875200. SIMBAD. wikidata.org.
[7] ↑ Q81753791 — apparent magnitude (P1215): {'unit': '1', 'amount': '+20.643'}. New white dwarf and subdwarf stars in the Sloan Digital Sky Survey Data Release 12. wikidata.org.
[8] ↑ Q81753791 — apparent magnitude (P1215): {'unit': '1', 'amount': '+20.062'}. New white dwarf and subdwarf stars in the Sloan Digital Sky Survey Data Release 12. wikidata.org.
[9] ↑ Q81753791 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.930'}. New white dwarf and subdwarf stars in the Sloan Digital Sky Survey Data Release 12. wikidata.org.
[10] ↑ Q81753791 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.818'}. New white dwarf and subdwarf stars in the Sloan Digital Sky Survey Data Release 12. wikidata.org.
[11] ↑ Q81753791 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.959'}. New white dwarf and subdwarf stars in the Sloan Digital Sky Survey Data Release 12. wikidata.org.
[12] ↑ Q81753791 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.9217'}. Gaia Data Release 2. wikidata.org.
[13] ↑ Q81753791 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+5.2360'}. Gaia Data Release 2. wikidata.org.
[14] ↑ Q81753791 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+190.9855'}. Gaia Data Release 2. wikidata.org.
[15] ↑ Q81753791 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+195.62811677863120'}. Gaia Data Release 2. wikidata.org.
[16] ↑ Q81753791 — declination (P6258): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+56.96310504702900'}. Gaia Data Release 2. wikidata.org.
[17] ↑ Q81753791 — epoch (P6259): J2000.0. Gaia Data Release 2. wikidata.org.
[18] ↑ Q81753791 — effective temperature (P6879): {'unit': 'http://www.wikidata.org/entity/Q11579', 'amount': '+7139'}. New white dwarf and subdwarf stars in the Sloan Digital Sky Survey Data Release 12. wikidata.org.
[19] ↑ Q81753791 — surface gravity (P7015): {'unit': 'http://www.wikidata.org/entity/Q39699418', 'amount': '+17200000'}. New white dwarf and subdwarf stars in the Sloan Digital Sky Survey Data Release 12. wikidata.org.
[20] ↑ Q81753791 — declination component of proper motion (P10751): {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-48.670'}. Gaia Data Release 2. wikidata.org.
[21] ↑ Q81753791 — right ascension component of proper motion (P10752): {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-47.484'}. Gaia Data Release 2. wikidata.org.

Class ancestry

[1] ↑ Q81753791 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). Q81753791. Retrieved May 7, 2026, from https://4ort.xyz/entity/q81753791

MLA “Q81753791.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q81753791.

BibTeX

@misc{4ortxyz_q81753791_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q81753791}}, year = {2026}, url = {https://4ort.xyz/entity/q81753791}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q81753791 — https://4ort.xyz/entity/q81753791 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q81753791 · Last refreshed: May 7, 2026