Q91970439

RR Lyrae variable star in the constellation Leo
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Q91970439

Summary

Q91970439 is a RR Lyrae variable[1].

Key Facts

  • Q91970439's instance of is recorded as RR Lyrae variable[2].
  • Q91970439's constellation is recorded as Leo[3].
  • Q91970439's catalog code is recorded as [SHM2017] J155.57442+20.41089[4].
  • Q91970439's catalog code is recorded as LINEAR 21924376[5].
  • Q91970439's catalog code is recorded as SDSS J102217.85+202439.0[6].
  • Q91970439's catalog code is recorded as [DCD2013] CSS J102217.8+202439[7].
  • Q91970439's catalog code is recorded as Gaia DR2 625589032071750784[8].
  • Q91970439's type of variable star is recorded as RR Lyrae variable with asymmetric light curves[9].
  • Q91970439's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.3407'}[10].
  • Q91970439's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.032'}[11].
  • Q91970439's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.930'}[12].
  • Q91970439's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.682'}[13].
  • Q91970439's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.618'}[14].
  • Q91970439's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.52'}[15].
  • Q91970439's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.4144'}[16].
  • Q91970439's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-45.0'}[17].
  • Q91970439's metallicity is recorded as {'unit': '1', 'amount': '-1.82'}[18].
  • Q91970439's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q11929860', 'amount': '+22.49'}[19].
  • Q91970439's SIMBAD ID is recorded as ZTF J102217.85+202439.0[20].
  • Q91970439's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+155.57439811935580'}[21].
  • Q91970439's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+20.41085254683700'}[22].
  • Q91970439's epoch is recorded as J2000.0[23].
  • Q91970439's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-1.683'}[24].
  • Q91970439's right ascension component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-1.477'}[25].
  • Q91970439's Gaia ID is recorded as 625589032071750784[26].

References

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

Direct Wikidata claims

  1. [2] . SIMBAD. wikidata.org.
  2. [3] . wikidata.org.
  3. [4] . SIMBAD. wikidata.org.
  4. [5] . SIMBAD. wikidata.org.
  5. [6] . SIMBAD. wikidata.org.
  6. [7] . SIMBAD. wikidata.org.
  7. [8] . SIMBAD. wikidata.org.
  8. [9] . Machine-learned Identification of RR Lyrae Stars from Sparse, Multi-band Data: The PS1 Sample. wikidata.org.
  9. [10] . The Pan-STARRS release 1 (PS1) Survey - DR1. wikidata.org.
  10. [11] . The SDSS Photometric Catalog, Release 7. wikidata.org.
  11. [12] . The SDSS Photometric Catalog, Release 7. wikidata.org.
  12. [13] . The SDSS Photometric Catalog, Release 7. wikidata.org.
  13. [14] . The SDSS Photometric Catalog, Release 7. wikidata.org.
  14. [15] . Probing the outer galactic halo with RR Lyrae from the Catalina surveys. wikidata.org.
  15. [16] . Gaia Data Release 2. wikidata.org.
  16. [17] . Tracing the Orphan stream to 55 kpc with RR Lyrae stars. wikidata.org.
  17. [18] . Tracing the Orphan stream to 55 kpc with RR Lyrae stars. wikidata.org.
  18. [19] . Exploring the variable sky with LINEAR. II. Halo structure and substructure traced by RR Lyrae stars to 30 kpc. wikidata.org.
  19. [20] . wikidata.org.
  20. [21] . Gaia Data Release 2. wikidata.org.
  21. [22] . Gaia Data Release 2. wikidata.org.
  22. [23] . Gaia Data Release 2. wikidata.org.
  23. [24] . Gaia Data Release 2. wikidata.org.
  24. [25] . Gaia Data Release 2. wikidata.org.
  25. [26] . 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). Q91970439. Retrieved May 7, 2026, from https://4ort.xyz/entity/q91970439
MLA “Q91970439.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q91970439.
BibTeX @misc{4ortxyz_q91970439_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q91970439}}, year = {2026}, url = {https://4ort.xyz/entity/q91970439}, note = {Accessed: 2026-05-07}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q91970439 — https://4ort.xyz/entity/q91970439 (retrieved 2026-05-07)

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