IV Hydrae

RR Lyrae variable star in the constellation Hydra
Place rr_lyrae_variable Q90072184
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IV Hydrae

Summary

IV Hydrae is a RR Lyrae variable[1].

Key Facts

  • IV Hydrae's instance of is recorded as RR Lyrae variable[2].
  • IV Hydrae's instance of is recorded as peculiar star[3].
  • IV Hydrae's instance of is recorded as near-infrared source[4].
  • IV Hydrae's constellation is recorded as Hydra[5].
  • IV Hydrae's catalog code is recorded as CSV 1440[6].
  • IV Hydrae's catalog code is recorded as GSC 05471-00587[7].
  • IV Hydrae's catalog code is recorded as 2MASS J09222059-1338489[8].
  • IV Hydrae's catalog code is recorded as ASAS J092220-1338.8[9].
  • IV Hydrae's catalog code is recorded as CRTS J092220.6-133849[10].
  • IV Hydrae's catalog code is recorded as Gaia DR2 5737699213623444864[11].
  • IV Hydrae's catalog code is recorded as IV Hya[12].
  • IV Hydrae's catalog code is recorded as Gaia DR3 5737699213623444864[13].
  • IV Hydrae's catalog code is recorded as TIC 293500737[14].
  • IV Hydrae's catalog code is recorded as WISEA J092220.61-133849.0[15].
  • IV Hydrae's type of variable star is recorded as RR Lyrae variable with asymmetric light curves[16].
  • IV Hydrae's apparent magnitude is recorded as {'unit': '1', 'amount': '+13.4611'}[17].
  • IV Hydrae's apparent magnitude is recorded as {'unit': '1', 'amount': '+13.2510'}[18].
  • IV Hydrae's apparent magnitude is recorded as {'unit': '1', 'amount': '+13.3030'}[19].
  • IV Hydrae's apparent magnitude is recorded as {'unit': '1', 'amount': '+13.4560'}[20].
  • IV Hydrae's apparent magnitude is recorded as {'unit': '1', 'amount': '+12.377'}[21].
  • IV Hydrae's apparent magnitude is recorded as {'unit': '1', 'amount': '+12.243'}[22].
  • IV Hydrae's apparent magnitude is recorded as {'unit': '1', 'amount': '+12.168'}[23].
  • IV Hydrae's apparent magnitude is recorded as {'unit': '1', 'amount': '+12.50'}[24].
  • IV Hydrae's apparent magnitude is recorded as {'unit': '1', 'amount': '+13.45'}[25].
  • IV Hydrae's apparent magnitude is recorded as {'unit': '1', 'amount': '+13.467673'}[26].

Body

Designation and Status

Recorded instance of include RR Lyrae variable[2], peculiar star[3], and near-infrared source[4].

History and Context

Catalog codes include CSV 1440[6], GSC 05471-00587[7], 2MASS J09222059-1338489[8], ASAS J092220-1338.8[9], CRTS J092220.6-133849[10], and Gaia DR2 5737699213623444864[11].

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] . SIMBAD. wikidata.org.
  4. [5] . 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] . Gaia Data Release 3. wikidata.org.
  15. [16] . Gaia Data Release 2. wikidata.org.
  16. [17] . The Pan-STARRS release 1 (PS1) Survey - DR1. wikidata.org.
  17. [18] . The Pan-STARRS release 1 (PS1) Survey - DR1. wikidata.org.
  18. [19] . The Pan-STARRS release 1 (PS1) Survey - DR1. wikidata.org.
  19. [20] . The Pan-STARRS release 1 (PS1) Survey - DR1. 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] . The University of New South Wales Extrasolar Planet Search: a catalogue of variable stars from fields observed between 2004 and 2007. wikidata.org.
  24. [25] . Probing the outer galactic halo with RR Lyrae from the Catalina surveys. wikidata.org.
  25. [26] . Gaia Early 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). IV Hydrae. Retrieved May 3, 2026, from https://4ort.xyz/entity/iv-hydrae
MLA “IV Hydrae.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/iv-hydrae.
BibTeX @misc{4ortxyz_iv-hydrae_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{IV Hydrae}}, year = {2026}, url = {https://4ort.xyz/entity/iv-hydrae}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): IV Hydrae — https://4ort.xyz/entity/iv-hydrae (retrieved 2026-05-03)

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