Q81946639

white dwarf in the constellation Cancer

Thing white_dwarf Q81946639

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Q81946639

Summary

Q81946639 is a white dwarf^[1].

Key Facts

Q81946639's instance of is recorded as white dwarf^[2].
Q81946639's constellation is recorded as Cancer^[3].
Q81946639's spectral class is recorded as DA+M^[4].
Q81946639's catalog code is recorded as SDSS J090945.85+080455.3^[5].
Q81946639's catalog code is recorded as [SLH2007] J090945.88+080455.3^[6].
Q81946639's catalog code is recorded as [RGS2010] J090945.85+080455.3^[7].
Q81946639's catalog code is recorded as [SGR2010] J0909+0804^[8].
Q81946639's catalog code is recorded as [SGR2010] J090945.85+080455.3^[9].
Q81946639's catalog code is recorded as SDSS J090945.86+080455.4^[10].
Q81946639's catalog code is recorded as WD 0907+082^[11].
Q81946639's catalog code is recorded as Gaia DR2 590264708473414784^[12].
Q81946639's redshift is recorded as {'unit': '1', 'amount': '+0.00032'}^[13].
Q81946639's apparent magnitude is recorded as {'unit': '1', 'amount': '+21.282'}^[14].
Q81946639's apparent magnitude is recorded as {'unit': '1', 'amount': '+20.637'}^[15].
Q81946639's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.857'}^[16].
Q81946639's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.167'}^[17].
Q81946639's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.756'}^[18].
Q81946639's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.543'}^[19].
Q81946639's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.953'}^[20].
Q81946639's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.665'}^[21].
Q81946639's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.8161'}^[22].
Q81946639's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+2.5909'}^[23].
Q81946639's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+96'}^[24].
Q81946639's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+2129.1'}^[25].
Q81946639's SIMBAD ID is recorded as GALEX J090945.9+080454^[26].

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Quick Facts

Instance of white dwarf

Properties

Apparent magnitude unit: 1, amount: +21.282, unit: 1, amount: +20.637, unit: 1, amount: +19.857, unit: 1, amount: +19.167, unit: 1, amount: +18.756, unit: 1, amount: +17.543, unit: 1, amount: +16.953, unit: 1, amount: +16.665, unit: 1, amount: +19.8161

Catalog code SDSS J090945.85+080455.3, [SLH2007] J090945.88+080455.3, [RGS2010] J090945.85+080455.3, [SGR2010] J0909+0804, [SGR2010] J090945.85+080455.3, SDSS J090945.86+080455.4, WD 0907+082, Gaia DR2 590264708473414784

Constellation Cancer

Declination unit: www.wikidata.org, amount: +8.08205875000470

Declination component of proper motion unit: www.wikidata.org, amount: +2.272

Distance from earth unit: www.wikidata.org, amount: +2129.1

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

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Parallax unit: www.wikidata.org, amount: +2.5909

Radial velocity unit: www.wikidata.org, amount: +96

Redshift unit: 1, amount: +0.00032

Right ascension unit: www.wikidata.org, amount: +137.44109787691960

Right ascension component of proper motion unit: www.wikidata.org, amount: -8.013

Spectral class DA+M

Surface gravity unit: www.wikidata.org, amount: +6900000000

External References (2)

Gaia id 590264708473414784

Simbad id GALEX J090945.9+080454

References

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

Direct Wikidata claims

[2] ↑ Q81946639 — instance of (P31): white dwarf. SIMBAD. wikidata.org.
[3] ↑ Q81946639 — constellation (P59): Cancer. wikidata.org.
[4] ↑ Q81946639 — spectral class (P215): DA+M. SDSS DR7 white dwarf catalog. wikidata.org.
[5] ↑ Q81946639 — catalog code (P528): SDSS J090945.85+080455.3. SIMBAD. wikidata.org.
[6] ↑ Q81946639 — catalog code (P528): [SLH2007] J090945.88+080455.3. SIMBAD. wikidata.org.
[7] ↑ Q81946639 — catalog code (P528): [RGS2010] J090945.85+080455.3. SIMBAD. wikidata.org.
[8] ↑ Q81946639 — catalog code (P528): [SGR2010] J0909+0804. SIMBAD. wikidata.org.
[9] ↑ Q81946639 — catalog code (P528): [SGR2010] J090945.85+080455.3. SIMBAD. wikidata.org.
[10] ↑ Q81946639 — catalog code (P528): SDSS J090945.86+080455.4. SIMBAD. wikidata.org.
[11] ↑ Q81946639 — catalog code (P528): WD 0907+082. SIMBAD. wikidata.org.
[12] ↑ Q81946639 — catalog code (P528): Gaia DR2 590264708473414784. SIMBAD. wikidata.org.
[13] ↑ Q81946639 — redshift (P1090): {'unit': '1', 'amount': '+0.00032'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[14] ↑ Q81946639 — apparent magnitude (P1215): {'unit': '1', 'amount': '+21.282'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[15] ↑ Q81946639 — apparent magnitude (P1215): {'unit': '1', 'amount': '+20.637'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[16] ↑ Q81946639 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.857'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[17] ↑ Q81946639 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.167'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[18] ↑ Q81946639 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.756'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[19] ↑ Q81946639 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.543'}. Post-common envelope binaries from SDSS - VII. A catalogue of white dwarf-main sequence binaries. wikidata.org.
[20] ↑ Q81946639 — apparent magnitude (P1215): {'unit': '1', 'amount': '+16.953'}. Post-common envelope binaries from SDSS - VII. A catalogue of white dwarf-main sequence binaries. wikidata.org.
[21] ↑ Q81946639 — apparent magnitude (P1215): {'unit': '1', 'amount': '+16.665'}. Post-common envelope binaries from SDSS - VII. A catalogue of white dwarf-main sequence binaries. wikidata.org.
[22] ↑ Q81946639 — apparent magnitude (P1215): {'unit': '1', 'amount': '+19.8161'}. Gaia Data Release 2. wikidata.org.
[23] ↑ Q81946639 — parallax (P2214): {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+2.5909'}. Gaia Data Release 2. wikidata.org.
[24] ↑ Q81946639 — radial velocity (P2216): {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+96'}. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
[25] ↑ Q81946639 — distance from Earth (P2583): {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+2129.1'}. The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
[26] ↑ Q81946639 — SIMBAD ID (P3083): GALEX J090945.9+080454. wikidata.org.

Class ancestry

[1] ↑ Q81946639 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). Q81946639. Retrieved May 7, 2026, from https://4ort.xyz/entity/q81946639

MLA “Q81946639.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q81946639.

BibTeX

@misc{4ortxyz_q81946639_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q81946639}}, year = {2026}, url = {https://4ort.xyz/entity/q81946639}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q81946639 — https://4ort.xyz/entity/q81946639 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q81946639 · Last refreshed: May 7, 2026