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Q89974930

white dwarf in the constellation Ursa Major
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Q89974930

Summary

Q89974930 is a white dwarf[1].

Key Facts

  • Q89974930's instance of is recorded as white dwarf[2].
  • Q89974930's constellation is recorded as Ursa Major[3].
  • Q89974930's spectral class is recorded as DC[4].
  • Q89974930's catalog code is recorded as SDSS J102856.57+640700.1[5].
  • Q89974930's catalog code is recorded as SDSS J102856.58+640700.1[6].
  • Q89974930's catalog code is recorded as WD 1025+643[7].
  • Q89974930's catalog code is recorded as Gaia DR2 1052664426613936384[8].
  • Q89974930's redshift is recorded as {'unit': '1', 'amount': '+2.25705'}[9].
  • Q89974930's apparent magnitude is recorded as {'unit': '1', 'amount': '+20.30'}[10].
  • Q89974930's apparent magnitude is recorded as {'unit': '1', 'amount': '+20.269'}[11].
  • Q89974930's apparent magnitude is recorded as {'unit': '1', 'amount': '+20.57'}[12].
  • Q89974930's apparent magnitude is recorded as {'unit': '1', 'amount': '+20.77'}[13].
  • Q89974930's apparent magnitude is recorded as {'unit': '1', 'amount': '+20.53'}[14].
  • Q89974930's apparent magnitude is recorded as {'unit': '1', 'amount': '+20.4717'}[15].
  • Q89974930's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+2.3599'}[16].
  • Q89974930's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+248141'}[17].
  • Q89974930's SIMBAD ID is recorded as GALEX J102856.5+640700[18].
  • Q89974930's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+157.23569086111450'}[19].
  • Q89974930's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+64.11668009120600'}[20].
  • Q89974930's epoch is recorded as J2000.0[21].
  • Q89974930's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-15.172'}[22].
  • Q89974930's right ascension component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '+10.781'}[23].
  • Q89974930's Gaia ID is recorded as 1052664426613936384[24].

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] ↑ . A catalog of spectroscopically identified white dwarf stars in the first data release of the Sloan Digital Sky Survey. wikidata.org.
  4. [5] ↑ . SIMBAD. wikidata.org.
  5. [6] ↑ . SIMBAD. wikidata.org.
  6. [7] ↑ . SIMBAD. wikidata.org.
  7. [8] ↑ . SIMBAD. wikidata.org.
  8. [9] ↑ . The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
  9. [10] ↑ . The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
  10. [11] ↑ . The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
  11. [12] ↑ . The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
  12. [13] ↑ . The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
  13. [14] ↑ . The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
  14. [15] ↑ . Gaia Data Release 2. wikidata.org.
  15. [16] ↑ . Gaia Data Release 2. wikidata.org.
  16. [17] ↑ . The Sixth Data Release of the Sloan Digital Sky Survey. wikidata.org.
  17. [18] ↑ . wikidata.org.
  18. [19] ↑ . Gaia Data Release 2. wikidata.org.
  19. [20] ↑ . Gaia Data Release 2. wikidata.org.
  20. [21] ↑ . Gaia Data Release 2. wikidata.org.
  21. [22] ↑ . Gaia Data Release 2. wikidata.org.
  22. [23] ↑ . Gaia Data Release 2. wikidata.org.
  23. [24] ↑ . 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). Q89974930. Retrieved May 7, 2026, from https://4ort.xyz/entity/q89974930
MLA “Q89974930.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q89974930.
BibTeX @misc{4ortxyz_q89974930_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q89974930}}, year = {2026}, url = {https://4ort.xyz/entity/q89974930}, note = {Accessed: 2026-05-07}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q89974930 — https://4ort.xyz/entity/q89974930 (retrieved 2026-05-07)

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