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Q81748618

white dwarf in the constellation Ursa Major
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Q81748618

Summary

Q81748618 is a white dwarf[1].

Key Facts

  • Q81748618's instance of is recorded as white dwarf[2].
  • Q81748618's constellation is recorded as Ursa Major[3].
  • Q81748618's spectral class is recorded as D+?[4].
  • Q81748618's catalog code is recorded as SDSS J102119.36+545025.4[5].
  • Q81748618's catalog code is recorded as SDSS J102119.36+545025.7[6].
  • Q81748618's catalog code is recorded as Gaia DR2 852240293142339328[7].
  • Q81748618's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.364'}[8].
  • Q81748618's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.517'}[9].
  • Q81748618's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.277'}[10].
  • Q81748618's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.637'}[11].
  • Q81748618's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.988'}[12].
  • Q81748618's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.2964'}[13].
  • Q81748618's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+1.2773'}[14].
  • Q81748618's SIMBAD ID is recorded as GALEX J102119.4+545024[15].
  • Q81748618's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+155.33070835366420'}[16].
  • Q81748618's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+54.84042821525800'}[17].
  • Q81748618's epoch is recorded as J2000.0[18].
  • Q81748618's effective temperature is recorded as {'unit': 'http://www.wikidata.org/entity/Q11579', 'amount': '+15891'}[19].
  • Q81748618's surface gravity is recorded as {'unit': 'http://www.wikidata.org/entity/Q39699418', 'amount': '+37800000'}[20].
  • Q81748618's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-27.183'}[21].
  • Q81748618's right ascension component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-7.955'}[22].
  • Q81748618's Gaia ID is recorded as 852240293142339328[23].

References

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

Direct Wikidata claims

  1. [2] ↑ . SIMBAD. wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [4] ↑ . The SDSS spectroscopic catalogue of white dwarf-main-sequence binaries: new identifications from DR 9-12. wikidata.org.
  4. [5] ↑ . SIMBAD. wikidata.org.
  5. [6] ↑ . SIMBAD. wikidata.org.
  6. [7] ↑ . SIMBAD. wikidata.org.
  7. [8] ↑ . The SDSS Photometric Catalog, Release 9. wikidata.org.
  8. [9] ↑ . The SDSS Photometric Catalog, Release 9. wikidata.org.
  9. [10] ↑ . The SDSS Photometric Catalog, Release 9. wikidata.org.
  10. [11] ↑ . The SDSS Photometric Catalog, Release 9. wikidata.org.
  11. [12] ↑ . New white dwarf and subdwarf stars in the Sloan Digital Sky Survey Data Release 12. wikidata.org.
  12. [13] ↑ . Gaia Data Release 2. wikidata.org.
  13. [14] ↑ . Gaia Data Release 2. wikidata.org.
  14. [15] ↑ . wikidata.org.
  15. [16] ↑ . Gaia Data Release 2. wikidata.org.
  16. [17] ↑ . Gaia Data Release 2. wikidata.org.
  17. [18] ↑ . Gaia Data Release 2. wikidata.org.
  18. [19] ↑ . New white dwarf and subdwarf stars in the Sloan Digital Sky Survey Data Release 12. wikidata.org.
  19. [20] ↑ . New white dwarf and subdwarf stars in the Sloan Digital Sky Survey Data Release 12. wikidata.org.
  20. [21] ↑ . Gaia Data Release 2. wikidata.org.
  21. [22] ↑ . Gaia Data Release 2. wikidata.org.
  22. [23] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . 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). Q81748618. Retrieved May 7, 2026, from https://4ort.xyz/entity/q81748618
MLA “Q81748618.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q81748618.
BibTeX @misc{4ortxyz_q81748618_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q81748618}}, year = {2026}, url = {https://4ort.xyz/entity/q81748618}, note = {Accessed: 2026-05-07}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q81748618 — https://4ort.xyz/entity/q81748618 (retrieved 2026-05-07)

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