Q74919723

Thing white_dwarf Q74919723

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Q74919723

Summary

Q74919723 is a white dwarf^[1].

Key Facts

Q74919723's instance of is recorded as white dwarf^[2].
Q74919723's spectral class is recorded as DA^[3].
Q74919723's catalog code is recorded as SDSS J100931.54+025646.0^[4].
Q74919723's catalog code is recorded as Gaia DR2 3836549837176995072^[5].
Q74919723's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.01'}^[6].
Q74919723's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.819'}^[7].
Q74919723's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.276'}^[8].
Q74919723's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.565'}^[9].
Q74919723's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.16'}^[10].
Q74919723's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.179'}^[11].
Q74919723's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.4139'}^[12].
Q74919723's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+3.5509'}^[13].
Q74919723's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+281.6187'}^[14].
Q74919723's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+152.38141455584940'}^[15].
Q74919723's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+2.94612392629650'}^[16].
Q74919723's epoch is recorded as J2000.0^[17].
Q74919723's effective temperature is recorded as {'unit': 'http://www.wikidata.org/entity/Q11579', 'amount': '+21242'}^[18].
Q74919723's surface gravity is recorded as {'unit': 'http://www.wikidata.org/entity/Q39699418', 'amount': '+316000000'}^[19].
Q74919723's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '+2.534'}^[20].
Q74919723's right ascension component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-13.492'}^[21].

Body

Definition and Type

Q74919723'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: +19.01, unit: 1, amount: +18.819, unit: 1, amount: +18.276, unit: 1, amount: +18.565, unit: 1, amount: +19.16, unit: 1, amount: +18.179, unit: 1, amount: +18.4139

Catalog code SDSS J100931.54+025646.0, Gaia DR2 3836549837176995072

Declination unit: www.wikidata.org, amount: +2.94612392629650

Declination component of proper motion unit: www.wikidata.org, amount: +2.534

Distance from earth unit: www.wikidata.org, amount: +281.6187

Effective temperature unit: www.wikidata.org, amount: +21242

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Parallax unit: www.wikidata.org, amount: +3.5509

Right ascension unit: www.wikidata.org, amount: +152.38141455584940

Right ascension component of proper motion unit: www.wikidata.org, amount: -13.492

Spectral class DA

Surface gravity unit: www.wikidata.org, amount: +316000000

External References (2)

Gaia id 3836549837176995072

Simbad id GALEX J100931.5+025646

References

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

Direct Wikidata claims

[2] ↑ Q74919723 — instance of (P31): white dwarf. SIMBAD. wikidata.org.
[3] ↑ Q74919723 — spectral class (P215): DA. New white dwarf stars in the Sloan Digital Sky Survey Data Release 10. wikidata.org.
[4] ↑ Q74919723 — catalog code (P528): SDSS J100931.54+025646.0. SIMBAD. wikidata.org.
[5] ↑ Q74919723 — catalog code (P528): Gaia DR2 3836549837176995072. SIMBAD. wikidata.org.
[6] ↑ Q74919723 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.01'}. DA white dwarfs in Sloan Digital Sky Survey Data Release 7 and a search for infrared excess emission. wikidata.org.
[7] ↑ Q74919723 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.819'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[8] ↑ Q74919723 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.276'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[9] ↑ Q74919723 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.565'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[10] ↑ Q74919723 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.16'}. DA white dwarfs in Sloan Digital Sky Survey Data Release 7 and a search for infrared excess emission. wikidata.org.
[11] ↑ Q74919723 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.179'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[12] ↑ Q74919723 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.4139'}. Gaia Data Release 2. wikidata.org.
[13] ↑ Q74919723 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+3.5509'}. Gaia Data Release 2. wikidata.org.
[14] ↑ Q74919723 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+281.6187'}. Gaia Data Release 2. wikidata.org.
[15] ↑ Q74919723 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+152.38141455584940'}. Gaia Data Release 2. wikidata.org.
[16] ↑ Q74919723 — declination (P6258): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+2.94612392629650'}. Gaia Data Release 2. wikidata.org.
[17] ↑ Q74919723 — epoch (P6259): J2000.0. Gaia Data Release 2. wikidata.org.
[18] ↑ Q74919723 — effective temperature (P6879): {'unit': 'http://www.wikidata.org/entity/Q11579', 'amount': '+21242'}. New white dwarf stars in the Sloan Digital Sky Survey Data Release 10. wikidata.org.
[19] ↑ Q74919723 — surface gravity (P7015): {'unit': 'http://www.wikidata.org/entity/Q39699418', 'amount': '+316000000'}. DA white dwarfs in Sloan Digital Sky Survey Data Release 7 and a search for infrared excess emission. wikidata.org.
[20] ↑ Q74919723 — declination component of proper motion (P10751): {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '+2.534'}. Gaia Data Release 2. wikidata.org.
[21] ↑ Q74919723 — right ascension component of proper motion (P10752): {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-13.492'}. Gaia Data Release 2. wikidata.org.

Class ancestry

[1] ↑ Q74919723 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). Q74919723. Retrieved May 7, 2026, from https://4ort.xyz/entity/q74919723

MLA “Q74919723.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q74919723.

BibTeX

@misc{4ortxyz_q74919723_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q74919723}}, year = {2026}, url = {https://4ort.xyz/entity/q74919723}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q74919723 — https://4ort.xyz/entity/q74919723 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q74919723 · Last refreshed: May 7, 2026