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Q89964870

white dwarf in the constellation Boötes
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Q89964870

Summary

Q89964870 is a white dwarf[1].

Key Facts

  • Q89964870's instance of is recorded as white dwarf[2].
  • Q89964870's constellation is recorded as Boötes[3].
  • Q89964870's spectral class is recorded as D+?[4].
  • Q89964870's catalog code is recorded as SDSS J154145.39+412230.4[5].
  • Q89964870's catalog code is recorded as SDSS J154145.40+412230.4[6].
  • Q89964870's catalog code is recorded as Gaia DR2 1390084341652070272[7].
  • Q89964870's apparent magnitude is recorded as {'unit': '1', 'amount': '+21.05'}[8].
  • Q89964870's apparent magnitude is recorded as {'unit': '1', 'amount': '+20.078'}[9].
  • Q89964870's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.287'}[10].
  • Q89964870's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.638'}[11].
  • Q89964870's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.121'}[12].
  • Q89964870's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.3326'}[13].
  • Q89964870's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+2.7558'}[14].
  • Q89964870's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+235.43920427878120'}[15].
  • Q89964870's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+41.37505991346400'}[16].
  • Q89964870's epoch is recorded as J2000.0[17].
  • Q89964870's effective temperature is recorded as {'unit': 'http://www.wikidata.org/entity/Q11579', 'amount': '+16336'}[18].
  • Q89964870's surface gravity is recorded as {'unit': 'http://www.wikidata.org/entity/Q39699418', 'amount': '+91200000'}[19].
  • Q89964870's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '+10.105'}[20].
  • Q89964870's right ascension component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-24.109'}[21].

Body

Definition and Type

Q89964870's instance of is recorded as white dwarf[2].

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 ninth data release of the Sloan Digital Sky Survey: first spectroscopic data from the SDSS-III baryon oscillation spectroscopic survey. wikidata.org.
  8. [9] ↑ . The ninth data release of the Sloan Digital Sky Survey: first spectroscopic data from the SDSS-III baryon oscillation spectroscopic survey. wikidata.org.
  9. [10] ↑ . The ninth data release of the Sloan Digital Sky Survey: first spectroscopic data from the SDSS-III baryon oscillation spectroscopic survey. wikidata.org.
  10. [11] ↑ . The ninth data release of the Sloan Digital Sky Survey: first spectroscopic data from the SDSS-III baryon oscillation spectroscopic survey. wikidata.org.
  11. [12] ↑ . The ninth data release of the Sloan Digital Sky Survey: first spectroscopic data from the SDSS-III baryon oscillation spectroscopic survey. wikidata.org.
  12. [13] ↑ . Gaia Data Release 2. wikidata.org.
  13. [14] ↑ . Gaia Data Release 2. wikidata.org.
  14. [15] ↑ . Gaia Data Release 2. wikidata.org.
  15. [16] ↑ . Gaia Data Release 2. wikidata.org.
  16. [17] ↑ . Gaia Data Release 2. wikidata.org.
  17. [18] ↑ . New white dwarf stars in the Sloan Digital Sky Survey Data Release 10. wikidata.org.
  18. [19] ↑ . New white dwarf stars in the Sloan Digital Sky Survey Data Release 10. wikidata.org.
  19. [20] ↑ . Gaia Data Release 2. wikidata.org.
  20. [21] ↑ . Gaia Data Release 2. 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). Q89964870. Retrieved May 7, 2026, from https://4ort.xyz/entity/q89964870
MLA “Q89964870.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q89964870.
BibTeX @misc{4ortxyz_q89964870_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q89964870}}, year = {2026}, url = {https://4ort.xyz/entity/q89964870}, note = {Accessed: 2026-05-07}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q89964870 — https://4ort.xyz/entity/q89964870 (retrieved 2026-05-07)

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