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W Hydrae

variable star in the constellation Hydra
Thing optical_double Q2568924
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W Hydrae

Summary

W Hydrae is an optical double[1]. It draws 17 Wikipedia views per month (optical_double category, ranking #18 of 44).[2]

Key Facts

  • W Hydrae's instance of is recorded as optical double[3].
  • W Hydrae's instance of is recorded as variable star[4].
  • W Hydrae's instance of is recorded as Mira variable[5].
  • W Hydrae's instance of is recorded as astrophysical maser[6].
  • W Hydrae's instance of is recorded as high proper-motion star[7].
  • W Hydrae's instance of is recorded as double star[8].
  • W Hydrae's instance of is recorded as near-infrared source[9].
  • W Hydrae's instance of is recorded as ultraviolet source[10].
  • W Hydrae's constellation is recorded as Hydra[11].
  • W Hydrae's spectral class is recorded as M7.5-9e[12].
  • W Hydrae comprises Q88593147[13].
  • W Hydrae's catalog code is recorded as GSC 06728-00019[14].
  • W Hydrae's catalog code is recorded as HD 120285[15].
  • W Hydrae's catalog code is recorded as 2MASS J13490199-2822034[16].
  • W Hydrae's catalog code is recorded as HIP 67419[17].
  • W Hydrae's catalog code is recorded as IRAS 13462-2807[18].
  • W Hydrae's catalog code is recorded as SAO 181981[19].
  • W Hydrae's catalog code is recorded as CCDM J13491-2822A[20].
  • W Hydrae's catalog code is recorded as FK5 5220[21].
  • W Hydrae's catalog code is recorded as GC 18659[22].
  • W Hydrae's catalog code is recorded as GCRV 8148[23].
  • W Hydrae's catalog code is recorded as HIC 67419[24].
  • W Hydrae's catalog code is recorded as IDS 13434-2752 A[25].
  • W Hydrae's catalog code is recorded as IRC -30207[26].
  • W Hydrae's catalog code is recorded as JP11 2429[27].

Body

Definition and Type

Recorded instance of include optical double[3], variable star[4], Mira variable[5], astrophysical maser[6], high proper-motion star[7], and double star[8].

Use and Application

W Hydrae comprises Q88593147[13].

Why It Matters

W Hydrae draws 17 Wikipedia views per month (optical_double category, ranking #18 of 44).[2] It has Wikipedia articles in 12 language editions, a strong signal of global cultural recognition.[28] It is known by 13 alternative names across languages and contexts.[29]

References

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

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . General Catalogue of Variable Stars. wikidata.org.
  3. [5] ↑ . SIMBAD. wikidata.org.
  4. [6] ↑ . SIMBAD. wikidata.org.
  5. [7] ↑ . SIMBAD. wikidata.org.
  6. [8] ↑ . SIMBAD. wikidata.org.
  7. [9] ↑ . SIMBAD. wikidata.org.
  8. [10] ↑ . SIMBAD. wikidata.org.
  9. [11] ↑ . wikidata.org.
  10. [12] ↑ . Revised catalog of spectra of Mira variables of types Me and Se. wikidata.org.
  11. [13] ↑ . Washington Double Star Catalog. 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] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [28] ↑ . Wikidata sitelinks. wikidata.org.
  3. [29] ↑ . Wikidata aliases. 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). W Hydrae. Retrieved May 3, 2026, from https://4ort.xyz/entity/w-hydrae
MLA “W Hydrae.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/w-hydrae.
BibTeX @misc{4ortxyz_w-hydrae_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{W Hydrae}}, year = {2026}, url = {https://4ort.xyz/entity/w-hydrae}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): W Hydrae — https://4ort.xyz/entity/w-hydrae (retrieved 2026-05-03)

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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 6w ago · Dirac · 2026-07-20 view diff on Wikidata ↗
    Constellation → Hydra
    Apparent magnitude → {'amount': '+8.97'}, {'amount': '+7.70'}, {'amount': '-1.59'} +3
    Epoch → J2000.0
    Luminosity → {'unit': 'Q843877', 'amount': '+11050'}
    + 14 other properties edited (see Wikidata diff for full list)
    "/* wbcreateclaim-create:1| */ [[Property:P18]]: WHyaLightCurve.png, [[:toollabs:quickstatements/#/batch/261337|batch #261337]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.