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HD 20644

star in the constellation Aries
Thing star Q3780756
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HD 20644

Summary

HD 20644 is a star[1]. It has Wikipedia articles in 5 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • HD 20644's instance of is recorded as star[3].
  • HD 20644's constellation is recorded as Aries[4].
  • HD 20644's spectral class is recorded as K3IIIaBa0.5[5].
  • HD 20644's spectral class is recorded as K3IIIa_Ba0.5[6].
  • HD 20644's catalog code is recorded as HR 999[7].
  • HD 20644's catalog code is recorded as HD 20644[8].
  • HD 20644's catalog code is recorded as HIP 15549[9].
  • HD 20644's catalog code is recorded as IRAS 03173+2852[10].
  • HD 20644's catalog code is recorded as SAO 75871[11].
  • HD 20644's catalog code is recorded as 2MASS J03202038+2902545[12].
  • HD 20644's catalog code is recorded as GSC 01796-01306[13].
  • HD 20644's catalog code is recorded as AG+28 342[14].
  • HD 20644's catalog code is recorded as BD+28 516[15].
  • HD 20644's catalog code is recorded as FK5 2234[16].
  • HD 20644's catalog code is recorded as GC 3981[17].
  • HD 20644's catalog code is recorded as GCRV 1846[18].
  • HD 20644's catalog code is recorded as HIC 15549[19].
  • HD 20644's catalog code is recorded as IRC +30062[20].
  • HD 20644's catalog code is recorded as JP11 768[21].
  • HD 20644's catalog code is recorded as PLX 693[22].
  • HD 20644's catalog code is recorded as PLX 693.00[23].
  • HD 20644's catalog code is recorded as PMC 90-93 1216[24].
  • HD 20644's catalog code is recorded as PPM 92402[25].
  • HD 20644's catalog code is recorded as RAFGL 477[26].
  • HD 20644's catalog code is recorded as ROT 454[27].

Why It Matters

HD 20644 has Wikipedia articles in 5 language editions, a strong signal of global cultural recognition.[2]

References

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

Direct Wikidata claims

  1. [3] ↑ . SIMBAD. wikidata.org.
  2. [4] ↑ . VizieR. wikidata.org.
  3. [5] ↑ . The Perkins catalog of revised MK types for the cooler stars. wikidata.org.
  4. [6] ↑ . The Perkins catalog of revised MK types for the cooler stars. wikidata.org.
  5. [7] ↑ . SIMBAD. wikidata.org.
  6. [8] ↑ . SIMBAD. wikidata.org.
  7. [9] ↑ . SIMBAD. wikidata.org.
  8. [10] ↑ . SIMBAD. wikidata.org.
  9. [11] ↑ . SIMBAD. wikidata.org.
  10. [12] ↑ . SIMBAD. wikidata.org.
  11. [13] ↑ . SIMBAD. wikidata.org.
  12. [14] ↑ . SIMBAD. wikidata.org.
  13. [15] ↑ . SIMBAD. wikidata.org.
  14. [16] ↑ . SIMBAD. wikidata.org.
  15. [17] ↑ . SIMBAD. wikidata.org.
  16. [18] ↑ . SIMBAD. wikidata.org.
  17. [19] ↑ . SIMBAD. wikidata.org.
  18. [20] ↑ . SIMBAD. wikidata.org.
  19. [21] ↑ . SIMBAD. wikidata.org.
  20. [22] ↑ . SIMBAD. wikidata.org.
  21. [23] ↑ . SIMBAD. wikidata.org.
  22. [24] ↑ . SIMBAD. wikidata.org.
  23. [25] ↑ . SIMBAD. wikidata.org.
  24. [26] ↑ . SIMBAD. wikidata.org.
  25. [27] ↑ . SIMBAD. wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikidata sitelinks. 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 20644. Retrieved May 7, 2026, from https://4ort.xyz/entity/hd-20644
MLA “HD 20644.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/hd-20644.
BibTeX @misc{4ortxyz_hd-20644_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{HD 20644}}, year = {2026}, url = {https://4ort.xyz/entity/hd-20644}, note = {Accessed: 2026-05-07}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): HD 20644 — https://4ort.xyz/entity/hd-20644 (retrieved 2026-05-07)

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