Q89415581

white dwarf in the constellation Ursa Major

Thing white_dwarf Q89415581

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Q89415581

Summary

Q89415581 is a white dwarf^[1].

Key Facts

Q89415581's instance of is recorded as white dwarf^[2].
Q89415581's constellation is recorded as Ursa Major^[3].
Q89415581's spectral class is recorded as DA+M^[4].
Q89415581's catalog code is recorded as WD 0915+551^[5].
Q89415581's catalog code is recorded as 2MASS J09184954+5456018^[6].
Q89415581's catalog code is recorded as SDSS J091849.56+545601.8^[7].
Q89415581's catalog code is recorded as SDSS J091849.54+545601.8^[8].
Q89415581's catalog code is recorded as SDSS J091849.55+545601.8^[9].
Q89415581's catalog code is recorded as [HHD2009] SDSS J0918+5456^[10].
Q89415581's catalog code is recorded as [SHW2006] J091849.55+545601.8^[11].
Q89415581's catalog code is recorded as [SLH2007] J091849.56+545601.8^[12].
Q89415581's catalog code is recorded as [RGS2010] J091849.55+545601.8^[13].
Q89415581's catalog code is recorded as WIRED J091849.55+545601.8^[14].
Q89415581's catalog code is recorded as SDSS J091849.54+545602.1^[15].
Q89415581's catalog code is recorded as Gaia DR2 1023298846153772288^[16].
Q89415581's redshift is recorded as {'unit': '1', 'amount': '+0.00004'}^[17].
Q89415581's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.493'}^[18].
Q89415581's apparent magnitude is recorded as {'unit': '1', 'amount': '+14.743'}^[19].
Q89415581's apparent magnitude is recorded as {'unit': '1', 'amount': '+14.505'}^[20].
Q89415581's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.426'}^[21].
Q89415581's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.223'}^[22].
Q89415581's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.542'}^[23].
Q89415581's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.961'}^[24].
Q89415581's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.579'}^[25].
Q89415581's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.6086'}^[26].

Body

Definition and Type

Q89415581'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: +15.493, unit: 1, amount: +14.743, unit: 1, amount: +14.505, unit: 1, amount: +18.426, unit: 1, amount: +18.223, unit: 1, amount: +17.542, unit: 1, amount: +16.961, unit: 1, amount: +16.579, unit: 1, amount: +17.6086

Catalog code WD 0915+551, 2MASS J09184954+5456018, SDSS J091849.56+545601.8, SDSS J091849.54+545601.8, SDSS J091849.55+545601.8, [HHD2009] SDSS J0918+5456, [SHW2006] J091849.55+545601.8, [SLH2007] J091849.56+545601.8, [RGS2010] J091849.55+545601.8, WIRED J091849.55+545601.8, SDSS J091849.54+545602.1, Gaia DR2 1023298846153772288

Constellation Ursa Major

Declination unit: www.wikidata.org, amount: +54.93384836846320

Declination component of proper motion unit: www.wikidata.org, amount: +5.680

Distance from earth unit: www.wikidata.org, amount: +300

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: +1.6702

Radial velocity unit: www.wikidata.org, amount: +12

Redshift unit: 1, amount: +0.00004

Right ascension unit: www.wikidata.org, amount: +139.70646517335190

Right ascension component of proper motion unit: www.wikidata.org, amount: -8.450

Spectral class DA+M

Surface gravity unit: www.wikidata.org, amount: +102000

External References (2)

Gaia id 1023298846153772288

Simbad id GALEX J091849.5+545602

References

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

Direct Wikidata claims

[2] ↑ Q89415581 — instance of (P31): white dwarf. SIMBAD. wikidata.org.
[3] ↑ Q89415581 — constellation (P59): Ursa Major. wikidata.org.
[4] ↑ Q89415581 — spectral class (P215): DA+M. SDSS DR7 white dwarf catalog. wikidata.org.
[5] ↑ Q89415581 — catalog code (P528): WD 0915+551. SIMBAD. wikidata.org.
[6] ↑ Q89415581 — catalog code (P528): 2MASS J09184954+5456018. SIMBAD. wikidata.org.
[7] ↑ Q89415581 — catalog code (P528): SDSS J091849.56+545601.8. SIMBAD. wikidata.org.
[8] ↑ Q89415581 — catalog code (P528): SDSS J091849.54+545601.8. SIMBAD. wikidata.org.
[9] ↑ Q89415581 — catalog code (P528): SDSS J091849.55+545601.8. SIMBAD. wikidata.org.
[10] ↑ Q89415581 — catalog code (P528): [HHD2009] SDSS J0918+5456. SIMBAD. wikidata.org.
[11] ↑ Q89415581 — catalog code (P528): [SHW2006] J091849.55+545601.8. SIMBAD. wikidata.org.
[12] ↑ Q89415581 — catalog code (P528): [SLH2007] J091849.56+545601.8. SIMBAD. wikidata.org.
[13] ↑ Q89415581 — catalog code (P528): [RGS2010] J091849.55+545601.8. SIMBAD. wikidata.org.
[14] ↑ Q89415581 — catalog code (P528): WIRED J091849.55+545601.8. SIMBAD. wikidata.org.
[15] ↑ Q89415581 — catalog code (P528): SDSS J091849.54+545602.1. SIMBAD. wikidata.org.
[16] ↑ Q89415581 — catalog code (P528): Gaia DR2 1023298846153772288. SIMBAD. wikidata.org.
[17] ↑ Q89415581 — redshift (P1090): {'unit': '1', 'amount': '+0.00004'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[18] ↑ Q89415581 — apparent magnitude (P1215): {'unit': '1', 'amount': '+15.493'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[19] ↑ Q89415581 — apparent magnitude (P1215): {'unit': '1', 'amount': '+14.743'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[20] ↑ Q89415581 — apparent magnitude (P1215): {'unit': '1', 'amount': '+14.505'}. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
[21] ↑ Q89415581 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.426'}. The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
[22] ↑ Q89415581 — apparent magnitude (P1215): {'unit': '1', 'amount': '+18.223'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[23] ↑ Q89415581 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.542'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[24] ↑ Q89415581 — apparent magnitude (P1215): {'unit': '1', 'amount': '+16.961'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[25] ↑ Q89415581 — apparent magnitude (P1215): {'unit': '1', 'amount': '+16.579'}. The SDSS Photometric Catalog, Release 7. wikidata.org.
[26] ↑ Q89415581 — apparent magnitude (P1215): {'unit': '1', 'amount': '+17.6086'}. Gaia Data Release 2. wikidata.org.

Class ancestry

[1] ↑ Q89415581 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). Q89415581. Retrieved May 7, 2026, from https://4ort.xyz/entity/q89415581

MLA “Q89415581.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q89415581.

BibTeX

@misc{4ortxyz_q89415581_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q89415581}}, year = {2026}, url = {https://4ort.xyz/entity/q89415581}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q89415581 — https://4ort.xyz/entity/q89415581 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q89415581 · Last refreshed: May 7, 2026