Q84034212

white dwarf in the constellation Corona Borealis

Thing white_dwarf Q84034212

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Q84034212

Summary

Q84034212 is a white dwarf^[1].

Key Facts

Q84034212's instance of is recorded as white dwarf^[2].
Q84034212's constellation is recorded as Corona Borealis^[3].
Q84034212's spectral class is recorded as DA+M^[4].
Q84034212's catalog code is recorded as [SHW2006] J154543.31+330708.4^[5].
Q84034212's catalog code is recorded as SDSS J154543.31+330708.4^[6].
Q84034212's catalog code is recorded as [SLH2007] J154543.20+330708.4^[7].
Q84034212's catalog code is recorded as [RGR2007] J154543.31+330708.3^[8].
Q84034212's catalog code is recorded as [RGS2010] J154543.31+330708.3^[9].
Q84034212's catalog code is recorded as SDSS J154543.32+330708.4^[10].
Q84034212's catalog code is recorded as WD 1543+332^[11].
Q84034212's catalog code is recorded as USNO-B1.0 1231-00273638^[12].
Q84034212's catalog code is recorded as Gaia DR2 1370793994258361600^[13].
Q84034212's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.637'}^[14].
Q84034212's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.475'}^[15].
Q84034212's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.097'}^[16].
Q84034212's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.436'}^[17].
Q84034212's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.96'}^[18].
Q84034212's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.6'}^[19].
Q84034212's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.8'}^[20].
Q84034212's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.8536'}^[21].
Q84034212's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+0.8608'}^[22].
Q84034212's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-12.3'}^[23].
Q84034212's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-30.6'}^[24].
Q84034212's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+236.43046561191800'}^[25].
Q84034212's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+33.11901672412700'}^[26].

Body

Definition and Type

Q84034212'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: +19.637, unit: 1, amount: +19.475, unit: 1, amount: +18.097, unit: 1, amount: +18.436, unit: 1, amount: +18.96, unit: 1, amount: +19.6, unit: 1, amount: +18.8, unit: 1, amount: +18.8536

Catalog code [SHW2006] J154543.31+330708.4, SDSS J154543.31+330708.4, [SLH2007] J154543.20+330708.4, [RGR2007] J154543.31+330708.3, [RGS2010] J154543.31+330708.3, SDSS J154543.32+330708.4, WD 1543+332, USNO-B1.0 1231-00273638, Gaia DR2 1370793994258361600

Constellation Corona Borealis

Declination unit: www.wikidata.org, amount: +33.11901672412700

Declination component of proper motion unit: www.wikidata.org, amount: +7.792

Effective temperature unit: www.wikidata.org, amount: +6301

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Parallax unit: www.wikidata.org, amount: +0.8608

Radial velocity unit: www.wikidata.org, amount: -12.3, unit: www.wikidata.org, amount: -30.6

Right ascension unit: www.wikidata.org, amount: +236.43046561191800

Right ascension component of proper motion unit: www.wikidata.org, amount: -0.500

Spectral class DA+M

Surface gravity unit: www.wikidata.org, amount: +6200000, unit: www.wikidata.org, amount: +8500000

External References (2)

Gaia id 1370793994258361600

Simbad id GALEX J154543.3+330709

References

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

Direct Wikidata claims

[2] ↑ Q84034212 — instance of (P31): white dwarf. SIMBAD. wikidata.org.
[3] ↑ Q84034212 — constellation (P59): Corona Borealis. wikidata.org.
[4] ↑ Q84034212 — spectral class (P215): DA+M. SDSS DR7 white dwarf catalog. wikidata.org.
[5] ↑ Q84034212 — catalog code (P528): [SHW2006] J154543.31+330708.4. SIMBAD. wikidata.org.
[6] ↑ Q84034212 — catalog code (P528): SDSS J154543.31+330708.4. SIMBAD. wikidata.org.
[7] ↑ Q84034212 — catalog code (P528): [SLH2007] J154543.20+330708.4. SIMBAD. wikidata.org.
[8] ↑ Q84034212 — catalog code (P528): [RGR2007] J154543.31+330708.3. SIMBAD. wikidata.org.
[9] ↑ Q84034212 — catalog code (P528): [RGS2010] J154543.31+330708.3. SIMBAD. wikidata.org.
[10] ↑ Q84034212 — catalog code (P528): SDSS J154543.32+330708.4. SIMBAD. wikidata.org.
[11] ↑ Q84034212 — catalog code (P528): WD 1543+332. SIMBAD. wikidata.org.
[12] ↑ Q84034212 — catalog code (P528): USNO-B1.0 1231-00273638. SIMBAD. wikidata.org.
[13] ↑ Q84034212 — catalog code (P528): Gaia DR2 1370793994258361600. SIMBAD. wikidata.org.
[14] ↑ Q84034212 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.637'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[15] ↑ Q84034212 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.475'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[16] ↑ Q84034212 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.097'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[17] ↑ Q84034212 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.436'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[18] ↑ Q84034212 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.96'}. SDSS DR7 white dwarf catalog. wikidata.org.
[19] ↑ Q84034212 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.6'}. The USNO-B Catalog. wikidata.org.
[20] ↑ Q84034212 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.8'}. The USNO-B Catalog. wikidata.org.
[21] ↑ Q84034212 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.8536'}. Gaia Data Release 2. wikidata.org.
[22] ↑ Q84034212 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+0.8608'}. Gaia Data Release 2. wikidata.org.
[23] ↑ Q84034212 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-12.3'}. Post-common-envelope binaries from SDSS - I. 101 white dwarf main-sequence binaries with multiple Sloan Digital Sky Survey spectroscopy. wikidata.org.
[24] ↑ Q84034212 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-30.6'}. Post-common-envelope binaries from SDSS - I. 101 white dwarf main-sequence binaries with multiple Sloan Digital Sky Survey spectroscopy. wikidata.org.
[25] ↑ Q84034212 — right ascension (P6257): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+236.43046561191800'}. Gaia Data Release 2. wikidata.org.
[26] ↑ Q84034212 — declination (P6258): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+33.11901672412700'}. Gaia Data Release 2. wikidata.org.

Class ancestry

[1] ↑ Q84034212 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). Q84034212. Retrieved May 7, 2026, from https://4ort.xyz/entity/q84034212

MLA “Q84034212.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q84034212.

BibTeX

@misc{4ortxyz_q84034212_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q84034212}}, year = {2026}, url = {https://4ort.xyz/entity/q84034212}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q84034212 — https://4ort.xyz/entity/q84034212 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q84034212 · Last refreshed: May 7, 2026