Q81511547

white dwarf in the constellation Canes Venatici

Thing white_dwarf Q81511547

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Q81511547

Summary

Q81511547 is a white dwarf^[1].

Key Facts

Q81511547's instance of is recorded as white dwarf^[2].
Q81511547's constellation is recorded as Canes Venatici^[3].
Q81511547's spectral class is recorded as DA^[4].
Q81511547's catalog code is recorded as PB 33^[5].
Q81511547's catalog code is recorded as SBSS 1256+495^[6].
Q81511547's catalog code is recorded as SDSS J125904.58+491853.9^[7].
Q81511547's catalog code is recorded as SDSS J125904.59+491854.0^[8].
Q81511547's catalog code is recorded as Gaia DR2 1555724084749801856^[9].
Q81511547's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.5'}^[10].
Q81511547's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.66'}^[11].
Q81511547's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.637'}^[12].
Q81511547's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.615'}^[13].
Q81511547's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.028'}^[14].
Q81511547's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.380'}^[15].
Q81511547's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.8871'}^[16].
Q81511547's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+2.0069'}^[17].
Q81511547's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+57'}^[18].
Q81511547's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+483'}^[19].
Q81511547's SIMBAD ID is recorded as PB 33^[20].
Q81511547's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+194.76910539647250'}^[21].
Q81511547's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+49.31498991767410'}^[22].
Q81511547's epoch is recorded as J2000.0^[23].
Q81511547's effective temperature is recorded as {'unit': 'http://www.wikidata.org/entity/Q11579', 'amount': '+21438'}^[24].
Q81511547's surface gravity is recorded as {'unit': 'http://www.wikidata.org/entity/Q39699418', 'amount': '+85000000'}^[25].
Q81511547's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '+0.017'}^[26].

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Quick Facts

Instance of white dwarf

Properties

Apparent magnitude unit: 1, amount: +18.5, unit: 1, amount: +19.66, unit: 1, amount: +18.637, unit: 1, amount: +18.615, unit: 1, amount: +19.028, unit: 1, amount: +19.380, unit: 1, amount: +18.8871

Catalog code PB 33, SBSS 1256+495, SDSS J125904.58+491853.9, SDSS J125904.59+491854.0, Gaia DR2 1555724084749801856

Constellation Canes Venatici

Declination unit: www.wikidata.org, amount: +49.31498991767410

Declination component of proper motion unit: www.wikidata.org, amount: +0.017

Distance from earth unit: www.wikidata.org, amount: +57, unit: www.wikidata.org, amount: +483

Effective temperature unit: www.wikidata.org, amount: +21438

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Parallax unit: www.wikidata.org, amount: +2.0069

Right ascension unit: www.wikidata.org, amount: +194.76910539647250

Right ascension component of proper motion unit: www.wikidata.org, amount: +7.074

Spectral class DA

Surface gravity unit: www.wikidata.org, amount: +85000000

External References (2)

Gaia id 1555724084749801856

Simbad id PB 33

References

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

Direct Wikidata claims

[2] ↑ Q81511547 — instance of (P31): white dwarf. SIMBAD. wikidata.org.
[3] ↑ Q81511547 — constellation (P59): Canes Venatici. wikidata.org.
[4] ↑ Q81511547 — 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] ↑ Q81511547 — catalog code (P528): PB 33. SIMBAD. wikidata.org.
[6] ↑ Q81511547 — catalog code (P528): SBSS 1256+495. SIMBAD. wikidata.org.
[7] ↑ Q81511547 — catalog code (P528): SDSS J125904.58+491853.9. SIMBAD. wikidata.org.
[8] ↑ Q81511547 — catalog code (P528): SDSS J125904.59+491854.0. SIMBAD. wikidata.org.
[9] ↑ Q81511547 — catalog code (P528): Gaia DR2 1555724084749801856. SIMBAD. wikidata.org.
[10] ↑ Q81511547 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.5'}. SIMBAD. wikidata.org.
[11] ↑ Q81511547 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.66'}. DA white dwarfs in Sloan Digital Sky Survey Data Release 7 and a search for infrared excess emission. wikidata.org.
[12] ↑ Q81511547 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.637'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[13] ↑ Q81511547 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.615'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[14] ↑ Q81511547 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.028'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[15] ↑ Q81511547 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.380'}. The SDSS Photometric Catalog, Release 9. wikidata.org.
[16] ↑ Q81511547 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.8871'}. Gaia Data Release 2. wikidata.org.
[17] ↑ Q81511547 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+2.0069'}. Gaia Data Release 2. wikidata.org.
[18] ↑ Q81511547 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+57'}. DA white dwarfs in Sloan Digital Sky Survey Data Release 7 and a search for infrared excess emission. wikidata.org.
[19] ↑ Q81511547 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+483'}. DA white dwarfs in Sloan Digital Sky Survey Data Release 7 and a search for infrared excess emission. wikidata.org.
[20] ↑ Q81511547 — SIMBAD ID (P3083): PB 33. wikidata.org.
[21] ↑ Q81511547 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+194.76910539647250'}. Gaia Data Release 2. wikidata.org.
[22] ↑ Q81511547 — declination (P6258): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+49.31498991767410'}. Gaia Data Release 2. wikidata.org.
[23] ↑ Q81511547 — epoch (P6259): J2000.0. Gaia Data Release 2. wikidata.org.
[24] ↑ Q81511547 — effective temperature (P6879): {'unit': 'http://www.wikidata.org/entity/Q11579', 'amount': '+21438'}. SDSS DR7 white dwarf catalog. wikidata.org.
[25] ↑ Q81511547 — surface gravity (P7015): {'unit': 'http://www.wikidata.org/entity/Q39699418', 'amount': '+85000000'}. SDSS DR7 white dwarf catalog. wikidata.org.
[26] ↑ Q81511547 — declination component of proper motion (P10751): {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '+0.017'}. Gaia Data Release 2. wikidata.org.

Class ancestry

[1] ↑ Q81511547 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). Q81511547. Retrieved May 7, 2026, from https://4ort.xyz/entity/q81511547

MLA “Q81511547.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q81511547.

BibTeX

@misc{4ortxyz_q81511547_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q81511547}}, year = {2026}, url = {https://4ort.xyz/entity/q81511547}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q81511547 — https://4ort.xyz/entity/q81511547 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q81511547 · Last refreshed: May 7, 2026