V817 Herculis

white dwarf in the constellation Hercules
Place white_dwarf Q78255639
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V817 Herculis

Summary

V817 Herculis is a white dwarf[1].

Key Facts

  • V817 Herculis's instance of is recorded as white dwarf[2].
  • V817 Herculis's instance of is recorded as pulsating variable star[3].
  • V817 Herculis's instance of is recorded as ultraviolet source[4].
  • V817 Herculis's constellation is recorded as Hercules[5].
  • V817 Herculis's spectral class is recorded as PG1159[6].
  • V817 Herculis's catalog code is recorded as SDSS J170847.68+424100.7[7].
  • V817 Herculis's catalog code is recorded as SDSS J170847.69+424100.7[8].
  • V817 Herculis's catalog code is recorded as SDSS J170847.68+424100.6[9].
  • V817 Herculis's catalog code is recorded as Gaia DR2 1355161726346266112[10].
  • V817 Herculis's catalog code is recorded as V817 Her[11].
  • V817 Herculis's catalog code is recorded as SDSS J170847.68+424100.8[12].
  • V817 Herculis's catalog code is recorded as Gaia DR3 1355161726346266112[13].
  • V817 Herculis's apparent magnitude is recorded as {'unit': '1', 'amount': '+15.966'}[14].
  • V817 Herculis's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.409'}[15].
  • V817 Herculis's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.948'}[16].
  • V817 Herculis's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.356'}[17].
  • V817 Herculis's apparent magnitude is recorded as {'unit': '1', 'amount': '+17.661'}[18].
  • V817 Herculis's apparent magnitude is recorded as {'unit': '1', 'amount': '+16.647861'}[19].
  • V817 Herculis's parallax is recorded as {'unit': 'http://www.wikidata.org/entity/Q21500224', 'amount': '+1.4019'}[20].
  • V817 Herculis's distance from Earth is recorded as {'unit': 'http://www.wikidata.org/entity/Q12129', 'amount': '+713.318'}[21].
  • V817 Herculis's SIMBAD ID is recorded as PG 1707+427[22].
  • V817 Herculis's right ascension is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+257.19869550647'}[23].
  • V817 Herculis's declination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+42.68348845296001'}[24].
  • V817 Herculis's epoch is recorded as J2000.0[25].
  • V817 Herculis's effective temperature is recorded as {'unit': 'http://www.wikidata.org/entity/Q11579', 'amount': '+0'}[26].

Body

Designation and Status

Recorded instance of include white dwarf[2], pulsating variable star[3], and ultraviolet source[4].

History and Context

Catalog codes include SDSS J170847.68+424100.7[7], SDSS J170847.69+424100.7[8], SDSS J170847.68+424100.6[9], Gaia DR2 1355161726346266112[10], V817 Her[11], and SDSS J170847.68+424100.8[12].

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] . SDSS DR7 white dwarf catalog. 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] . The SDSS Photometric Catalog, Release 9. wikidata.org.
  14. [15] . The SDSS Photometric Catalog, Release 9. wikidata.org.
  15. [16] . The SDSS Photometric Catalog, Release 9. wikidata.org.
  16. [17] . The SDSS Photometric Catalog, Release 9. wikidata.org.
  17. [18] . The SDSS Photometric Catalog, Release 9. wikidata.org.
  18. [19] . Gaia Early Data Release 3. wikidata.org.
  19. [20] . Gaia Early Data Release 3. wikidata.org.
  20. [21] . Gaia Early Data Release 3. wikidata.org.
  21. [22] . wikidata.org.
  22. [23] . Gaia Early Data Release 3. wikidata.org.
  23. [24] . Gaia Early Data Release 3. wikidata.org.
  24. [25] . Gaia Data Release 2. wikidata.org.
  25. [26] . SDSS DR7 white dwarf catalog. 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). V817 Herculis. Retrieved May 3, 2026, from https://4ort.xyz/entity/v817-herculis
MLA “V817 Herculis.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/v817-herculis.
BibTeX @misc{4ortxyz_v817-herculis_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{V817 Herculis}}, year = {2026}, url = {https://4ort.xyz/entity/v817-herculis}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): V817 Herculis — https://4ort.xyz/entity/v817-herculis (retrieved 2026-05-03)

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