HD 21004

star in the constellation Perseus
Thing high_proper_motion_star Q10849366
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HD 21004

Summary

HD 21004 is a high proper-motion star[1].

Key Facts

  • HD 21004's instance of is recorded as high proper-motion star[2].
  • HD 21004's constellation is recorded as Perseus[3].
  • HD 21004's spectral class is recorded as A9III-IV[4].
  • HD 21004's catalog code is recorded as HD 21004[5].
  • HD 21004's catalog code is recorded as GCRV 1881[6].
  • HD 21004's catalog code is recorded as GSC 03703-00364[7].
  • HD 21004's catalog code is recorded as HIC 15979[8].
  • HD 21004's catalog code is recorded as HIP 15979[9].
  • HD 21004's catalog code is recorded as HR 1020[10].
  • HD 21004's catalog code is recorded as 2MASS J03254788+5355173[11].
  • HD 21004's catalog code is recorded as PPM 28464[12].
  • HD 21004's catalog code is recorded as SAO 24024[13].
  • HD 21004's catalog code is recorded as TD1 2142[14].
  • HD 21004's catalog code is recorded as UBV M 9480[15].
  • HD 21004's catalog code is recorded as uvby98 100021004[16].
  • HD 21004's catalog code is recorded as YZ 53 1480[17].
  • HD 21004's catalog code is recorded as AG+53 315[18].
  • HD 21004's catalog code is recorded as BD+53 657[19].
  • HD 21004's catalog code is recorded as TYC 3703-364-1[20].
  • HD 21004's catalog code is recorded as Gaia DR1 446568674847721472[21].
  • HD 21004's catalog code is recorded as WEB 3052[22].
  • HD 21004's catalog code is recorded as Gaia DR2 446568679146449024[23].
  • HD 21004's apparent magnitude is recorded as {'unit': '1', 'amount': '+6.801'}[24].
  • HD 21004's apparent magnitude is recorded as {'unit': '1', 'amount': '+6.517'}[25].
  • HD 21004's apparent magnitude is recorded as {'unit': '1', 'amount': '+6.4235'}[26].

References

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

Direct Wikidata claims

  1. [2] . SIMBAD. wikidata.org.
  2. [3] . VizieR. vizier.u-strasbg.fr. Provenance: wikidata.org.
  3. [4] . MK spectral types for 185 bright stars. wikidata.org.
  4. [5] . SIMBAD. wikidata.org.
  5. [6] . SIMBAD. wikidata.org.
  6. [7] . SIMBAD. wikidata.org.
  7. [8] . SIMBAD. wikidata.org.
  8. [9] . SIMBAD. wikidata.org.
  9. [10] . SIMBAD. wikidata.org.
  10. [11] . SIMBAD. wikidata.org.
  11. [12] . SIMBAD. wikidata.org.
  12. [13] . SIMBAD. wikidata.org.
  13. [14] . SIMBAD. wikidata.org.
  14. [15] . SIMBAD. wikidata.org.
  15. [16] . SIMBAD. wikidata.org.
  16. [17] . SIMBAD. wikidata.org.
  17. [18] . SIMBAD. wikidata.org.
  18. [19] . SIMBAD. wikidata.org.
  19. [20] . SIMBAD. wikidata.org.
  20. [21] . SIMBAD. wikidata.org.
  21. [22] . SIMBAD. wikidata.org.
  22. [23] . SIMBAD. wikidata.org.
  23. [24] . The Tycho-2 catalogue of the 2.5 million brightest stars. wikidata.org.
  24. [25] . The Tycho-2 catalogue of the 2.5 million brightest stars. wikidata.org.
  25. [26] . 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). HD 21004. Retrieved May 7, 2026, from https://4ort.xyz/entity/q10849366
MLA “HD 21004.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q10849366.
BibTeX @misc{4ortxyz_q10849366_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{HD 21004}}, year = {2026}, url = {https://4ort.xyz/entity/q10849366}, note = {Accessed: 2026-05-07}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): HD 21004 — https://4ort.xyz/entity/q10849366 (retrieved 2026-05-07)

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