Q81749899

RR Lyrae variable star in the constellation Serpens
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Q81749899

Summary

Q81749899 is a RR Lyrae variable[1].

Key Facts

  • Q81749899's instance of is recorded as RR Lyrae variable[2].
  • Q81749899's constellation is recorded as Serpens[3].
  • Q81749899's spectral class is recorded as sdA[4].
  • Q81749899's catalog code is recorded as [SHM2017] J228.42959-01.99560[5].
  • Q81749899's catalog code is recorded as SDSS J151343.10-015944.2[6].
  • Q81749899's catalog code is recorded as Gaia DR2 4415071383508973056[7].
  • Q81749899's type of variable star is recorded as RR Lyrae variable with asymmetric light curves[8].
  • Q81749899's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.3530'}[9].
  • Q81749899's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.2847'}[10].
  • Q81749899's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.4487'}[11].
  • Q81749899's apparent magnitude is recorded as {'unit': '1', 'amount': '+21.160'}[12].
  • Q81749899's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.690'}[13].
  • Q81749899's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.5658'}[14].
  • Q81749899's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+0.1456'}[15].
  • Q81749899's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+228.42958655702310'}[16].
  • Q81749899's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '-1.99563719181530'}[17].
  • Q81749899's epoch is recorded as J2000.0[18].
  • Q81749899's effective temperature is recorded as {'unit': 'http://www.wikidata.org/entity/Q11579', 'amount': '+7584'}[19].
  • Q81749899's surface gravity is recorded as {'unit': 'http://www.wikidata.org/entity/Q39699418', 'amount': '+935000'}[20].
  • Q81749899's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-0.258'}[21].
  • Q81749899's right ascension component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-1.896'}[22].

Body

Definition and Type

Q81749899's instance of is recorded as RR Lyrae variable[2].

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] . New white dwarf and subdwarf stars in the Sloan Digital Sky Survey Data Release 12. wikidata.org.
  4. [5] . SIMBAD. wikidata.org.
  5. [6] . SIMBAD. wikidata.org.
  6. [7] . SIMBAD. wikidata.org.
  7. [8] . Machine-learned Identification of RR Lyrae Stars from Sparse, Multi-band Data: The PS1 Sample. wikidata.org.
  8. [9] . The Pan-STARRS release 1 (PS1) Survey - DR1. wikidata.org.
  9. [10] . The Pan-STARRS release 1 (PS1) Survey - DR1. wikidata.org.
  10. [11] . The Pan-STARRS release 1 (PS1) Survey - DR1. wikidata.org.
  11. [12] . New white dwarf and subdwarf stars in the Sloan Digital Sky Survey Data Release 12. wikidata.org.
  12. [13] . New white dwarf and subdwarf stars in the Sloan Digital Sky Survey Data Release 12. wikidata.org.
  13. [14] . Gaia Data Release 2. wikidata.org.
  14. [15] . Gaia Data Release 2. wikidata.org.
  15. [16] . Gaia Data Release 2. wikidata.org.
  16. [17] . Gaia Data Release 2. wikidata.org.
  17. [18] . Gaia Data Release 2. wikidata.org.
  18. [19] . New white dwarf and subdwarf stars in the Sloan Digital Sky Survey Data Release 12. wikidata.org.
  19. [20] . New white dwarf and subdwarf stars in the Sloan Digital Sky Survey Data Release 12. wikidata.org.
  20. [21] . Gaia Data Release 2. wikidata.org.
  21. [22] . Gaia Data Release 2. 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). Q81749899. Retrieved May 7, 2026, from https://4ort.xyz/entity/q81749899
MLA “Q81749899.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q81749899.
BibTeX @misc{4ortxyz_q81749899_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q81749899}}, year = {2026}, url = {https://4ort.xyz/entity/q81749899}, note = {Accessed: 2026-05-07}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q81749899 — https://4ort.xyz/entity/q81749899 (retrieved 2026-05-07)

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