Home › Entities › brown_dwarf › Q81909342

Q81909342

Thing brown_dwarf Q81909342
Press Enter · cited answer in seconds

Q81909342

Summary

Q81909342 is a brown dwarf[1].

Key Facts

  • Q81909342's instance of is recorded as brown dwarf[2].
  • Q81909342's constellation is recorded as Coma Berenices[3].
  • Q81909342's spectral class is recorded as M9V[4].
  • Q81909342's catalog code is recorded as SDSS J131545.55+245407.3[5].
  • Q81909342's catalog code is recorded as 2MASS J13154557+2454072[6].
  • Q81909342's catalog code is recorded as ULAS J131545.52+245407.3[7].
  • Q81909342's catalog code is recorded as Gaia DR2 1447035882875220736[8].
  • Q81909342's redshift is recorded as {'unit': '1', 'amount': '-0.00004'}[9].
  • Q81909342's apparent magnitude is recorded as {'unit': '1', 'amount': '+23.906'}[10].
  • Q81909342's apparent magnitude is recorded as {'unit': '1', 'amount': '+23.992'}[11].
  • Q81909342's apparent magnitude is recorded as {'unit': '1', 'amount': '+22.402'}[12].
  • Q81909342's apparent magnitude is recorded as {'unit': '1', 'amount': '+19.807'}[13].
  • Q81909342's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.957'}[14].
  • Q81909342's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.46'}[15].
  • Q81909342's apparent magnitude is recorded as {'unit': '1', 'amount': '+14.86'}[16].
  • Q81909342's apparent magnitude is recorded as {'unit': '1', 'amount': '+14.33'}[17].
  • Q81909342's apparent magnitude is recorded as {'unit': '1', 'amount': '+20.3111'}[18].
  • Q81909342's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+17.6670'}[19].
  • Q81909342's radial velocity is recorded as {'unit': 'http://www.wikidata.org/entity/Q3674704', 'amount': '+23'}[20].
  • Q81909342's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+56.6027'}[21].
  • Q81909342's SIMBAD ID is recorded as 2MASS J13154557+2454072[22].
  • Q81909342's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+198.93989413575050'}[23].
  • Q81909342's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+24.90203714823520'}[24].
  • Q81909342's epoch is recorded as J2000.0[25].
  • Q81909342's declination component of proper motion is recorded as {'unit': 'http://www.wikidata.org/entity/Q22137107', 'amount': '-15.131'}[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] ↑ . The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
  4. [5] ↑ . SIMBAD. wikidata.org.
  5. [6] ↑ . SIMBAD. wikidata.org.
  6. [7] ↑ . SIMBAD. wikidata.org.
  7. [8] ↑ . SIMBAD. wikidata.org.
  8. [9] ↑ . The SDSS Photometric Catalog, Release 7. wikidata.org.
  9. [10] ↑ . The SDSS Photometric Catalog, Release 7. 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] ↑ . Photometric brown-dwarf classification. II. A homogeneous sample of 1361 L and T dwarfs brighter than J = 17.5 with accurate spectral types. wikidata.org.
  15. [16] ↑ . Photometric brown-dwarf classification. II. A homogeneous sample of 1361 L and T dwarfs brighter than J = 17.5 with accurate spectral types. wikidata.org.
  16. [17] ↑ . Photometric brown-dwarf classification. II. A homogeneous sample of 1361 L and T dwarfs brighter than J = 17.5 with accurate spectral types. wikidata.org.
  17. [18] ↑ . Gaia Data Release 2. wikidata.org.
  18. [19] ↑ . Gaia Data Release 2. wikidata.org.
  19. [20] ↑ . The Sloan Digital Sky Survey Data Release 7 spectroscopic M dwarf catalog. I. Data. wikidata.org.
  20. [21] ↑ . Gaia Data Release 2. 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.

📑 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). Q81909342. Retrieved May 7, 2026, from https://4ort.xyz/entity/q81909342
MLA “Q81909342.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q81909342.
BibTeX @misc{4ortxyz_q81909342_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q81909342}}, year = {2026}, url = {https://4ort.xyz/entity/q81909342}, note = {Accessed: 2026-05-07}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q81909342 — https://4ort.xyz/entity/q81909342 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q81909342 · Last refreshed: