V556 Hydrae

RR Lyrae variable star in the constellation Hydra
Place rr_lyrae_variable Q85671454
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V556 Hydrae

Summary

V556 Hydrae is a RR Lyrae variable[1].

Key Facts

  • V556 Hydrae's instance of is recorded as RR Lyrae variable[2].
  • V556 Hydrae's instance of is recorded as near-infrared source[3].
  • V556 Hydrae's constellation is recorded as Hydra[4].
  • V556 Hydrae's catalog code is recorded as GSC 06722-01540[5].
  • V556 Hydrae's catalog code is recorded as 2MASS J13395170-2652173[6].
  • V556 Hydrae's catalog code is recorded as Gaia DR1 6190268571961010944[7].
  • V556 Hydrae's catalog code is recorded as Gaia DR2 6190268571961010944[8].
  • V556 Hydrae's catalog code is recorded as V556 Hya[9].
  • V556 Hydrae's catalog code is recorded as Gaia DR3 6190268571961010944[10].
  • V556 Hydrae's catalog code is recorded as TIC 49291533[11].
  • V556 Hydrae's catalog code is recorded as TYC 6722-1540-1[12].
  • V556 Hydrae's catalog code is recorded as ASAS J133952-2652.3[13].
  • V556 Hydrae's catalog code is recorded as CRTS J133951.6-265218[14].
  • V556 Hydrae's catalog code is recorded as ATO J204.9654-26.8715[15].
  • V556 Hydrae's catalog code is recorded as NSVS 18802684[16].
  • V556 Hydrae's catalog code is recorded as WISEA J133951.70-265217.3[17].
  • V556 Hydrae's type of variable star is recorded as RR Lyrae variable with asymmetric light curves[18].
  • V556 Hydrae's apparent magnitude is recorded as {'unit': '1', 'amount': '+11.82'}[19].
  • V556 Hydrae's apparent magnitude is recorded as {'unit': '1', 'amount': '+12.05'}[20].
  • V556 Hydrae's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.584'}[21].
  • V556 Hydrae's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.372'}[22].
  • V556 Hydrae's apparent magnitude is recorded as {'unit': '1', 'amount': '+10.351'}[23].
  • V556 Hydrae's apparent magnitude is recorded as {'unit': '1', 'amount': '+11.615022'}[24].
  • V556 Hydrae's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+0.6718'}[25].
  • V556 Hydrae's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-74.06'}[26].

Body

Designation and Status

Recorded instance of include RR Lyrae variable[2] and near-infrared source[3].

History and Context

Catalog codes include GSC 06722-01540[5], 2MASS J13395170-2652173[6], Gaia DR1 6190268571961010944[7], Gaia DR2 6190268571961010944[8], V556 Hya[9], and Gaia DR3 6190268571961010944[10].

References

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

Direct Wikidata claims

  1. [2] . SIMBAD. wikidata.org.
  2. [3] . SIMBAD. wikidata.org.
  3. [4] . 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] . Gaia Data Release 3. wikidata.org.
  17. [18] . Gaia Data Release 2. wikidata.org.
  18. [19] . The Tycho-2 catalogue of the 2.5 million brightest stars. wikidata.org.
  19. [20] . The Tycho-2 catalogue of the 2.5 million brightest stars. wikidata.org.
  20. [21] . VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
  21. [22] . VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
  22. [23] . VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
  23. [24] . Gaia Early Data Release 3. wikidata.org.
  24. [25] . Gaia Early Data Release 3. wikidata.org.
  25. [26] . Gaia Data Release 3. wikidata.org.

Class ancestry

  1. [1] . Wikidata. wikidata.org.

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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). V556 Hydrae. Retrieved May 3, 2026, from https://4ort.xyz/entity/v556-hydrae
MLA “V556 Hydrae.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/v556-hydrae.
BibTeX @misc{4ortxyz_v556-hydrae_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{V556 Hydrae}}, year = {2026}, url = {https://4ort.xyz/entity/v556-hydrae}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): V556 Hydrae — https://4ort.xyz/entity/v556-hydrae (retrieved 2026-05-03)

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