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Q77973917

RR Lyrae variable star in the constellation Boötes
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Q77973917

Summary

Q77973917 is a RR Lyrae variable[1].

Key Facts

  • Q77973917's instance of is recorded as RR Lyrae variable[2].
  • Q77973917's constellation is recorded as Boötes[3].
  • Q77973917's catalog code is recorded as SDSS J153930.77+523403.7[4].
  • Q77973917's catalog code is recorded as SDSS J153930.77+523403.9[5].
  • Q77973917's catalog code is recorded as 2MASS J15393082+5234033[6].
  • Q77973917's catalog code is recorded as CRTS J153930.7+523404[7].
  • Q77973917's catalog code is recorded as Gaia DR2 1596835752225013504[8].
  • Q77973917's type of variable star is recorded as RR Lyrae variable[9].
  • Q77973917's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.301'}[10].
  • Q77973917's apparent magnitude is recorded as {'unit': '1', 'amount': '+18.291'}[11].
  • Q77973917's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.069'}[12].
  • Q77973917's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.160'}[13].
  • Q77973917's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.250'}[14].
  • Q77973917's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.722'}[15].
  • Q77973917's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.157'}[16].
  • Q77973917's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.27'}[17].
  • Q77973917's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.2694'}[18].
  • Q77973917's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+0.0299'}[19].
  • Q77973917's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '-157.6'}[20].
  • Q77973917's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q11929860', 'amount': '+19.5'}[21].
  • Q77973917's SIMBAD ID is recorded as CRTS J153930.7+523404[22].
  • Q77973917's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+234.87823070615740'}[23].
  • Q77973917's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+52.56769290419080'}[24].
  • Q77973917's epoch is recorded as J2000.0[25].
  • Q77973917's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-0.768'}[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] ↑ . Newly discovered RR Lyrae stars in the SDSS-Pan-STARRS1-Catalina footprint. wikidata.org.
  9. [10] ↑ . The SDSS Photometric Catalog, Release 7. wikidata.org.
  10. [11] ↑ . The SDSS Photometric Catalog, Release 8. wikidata.org.
  11. [12] ↑ . The SDSS Photometric Catalog, Release 8. wikidata.org.
  12. [13] ↑ . The SDSS Photometric Catalog, Release 8. wikidata.org.
  13. [14] ↑ . The SDSS Photometric Catalog, Release 8. wikidata.org.
  14. [15] ↑ . VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
  15. [16] ↑ . VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003). wikidata.org.
  16. [17] ↑ . The Catalina surveys periodic variable star catalog. wikidata.org.
  17. [18] ↑ . Gaia Data Release 2. wikidata.org.
  18. [19] ↑ . Gaia Data Release 2. wikidata.org.
  19. [20] ↑ . Quantifying kinematic substructure in the Milky Way's stellar halo. wikidata.org.
  20. [21] ↑ . Quantifying kinematic substructure in the Milky Way's stellar halo. wikidata.org.
  21. [22] ↑ . 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] ↑ . Gaia Data Release 2. 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). Q77973917. Retrieved May 7, 2026, from https://4ort.xyz/entity/q77973917
MLA “Q77973917.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q77973917.
BibTeX @misc{4ortxyz_q77973917_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q77973917}}, year = {2026}, url = {https://4ort.xyz/entity/q77973917}, note = {Accessed: 2026-05-07}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q77973917 — https://4ort.xyz/entity/q77973917 (retrieved 2026-05-07)

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