NGC 991

galaxy
Thing low_surface_brightness_galaxy Q1040765
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NGC 991

Summary

NGC 991 is a low-surface-brightness galaxy[1]. It draws 4 Wikipedia views per month (low_surface_brightness_galaxy category, ranking #13 of 19).[2]

Key Facts

  • NGC 991 is credited with the discovery of William Herschel[3].
  • NGC 991's image is recorded as NGC 0991 SDSS.jpg[4].
  • NGC 991's instance of is recorded as low-surface-brightness galaxy[5].
  • NGC 991's instance of is recorded as spiral galaxy[6].
  • NGC 991's constellation is recorded as Cetus[7].
  • NGC 991's galaxy morphological type is recorded as SBc[8].
  • NGC 991's galaxy morphological type is recorded as SABcd[9].
  • NGC 991's part of is recorded as Q67793291[10].
  • NGC 991's Commons category is recorded as NGC 991[11].
  • NGC 991's catalog code is recorded as 6dFGS gJ023532.8-070916[12].
  • NGC 991's catalog code is recorded as AGC 420153[13].
  • NGC 991's catalog code is recorded as HIPASS J0235-07[14].
  • NGC 991's catalog code is recorded as MCG-01-07-023[15].
  • NGC 991's catalog code is recorded as NGC 991[16].
  • NGC 991's catalog code is recorded as SDSS J023532.68-070915.9[17].
  • NGC 991's catalog code is recorded as PGC 9846[18].
  • NGC 991's catalog code is recorded as LEDA 9846[19].
  • NGC 991's catalog code is recorded as Gaia DR2 5178210999550720768[20].
  • NGC 991's time of discovery or invention is recorded as +1785-09-10T00:00:00Z[21].
  • NGC 991's redshift is recorded as {'amount': '+0.00510'}[22].
  • NGC 991's apparent magnitude is recorded as {'amount': '+11.7'}[23].
  • NGC 991's apparent magnitude is recorded as {'amount': '+12.36'}[24].
  • NGC 991's apparent magnitude is recorded as {'amount': '+12.7'}[25].
  • NGC 991's apparent magnitude is recorded as {'amount': '+12.6'}[26].
  • NGC 991's apparent magnitude is recorded as {'amount': '+19.4716'}[27].

Body

Works and Contributions

NGC 991 is credited with the discovery of William Herschel[3].

Why It Matters

NGC 991 draws 4 Wikipedia views per month (low_surface_brightness_galaxy category, ranking #13 of 19).[2] It has Wikipedia articles in 13 language editions, a strong signal of global cultural recognition.[28]

References

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

Direct Wikidata claims

  1. [4] . wikidata.org.
  2. [5] . SIMBAD. wikidata.org.
  3. [6] . wikidata.org.
  4. [7] . wikidata.org.
  5. [3] . wikidata.org.
  6. [8] . wikidata.org.
  7. [9] . A catalog of visually classified galaxies in the local (z ~ 0.01) universe. wikidata.org.
  8. [10] . SIMBAD. wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . SIMBAD. wikidata.org.
  11. [13] . SIMBAD. wikidata.org.
  12. [14] . SIMBAD. wikidata.org.
  13. [15] . SIMBAD. wikidata.org.
  14. [16] . SIMBAD. wikidata.org.
  15. [17] . SIMBAD. wikidata.org.
  16. [18] . SIMBAD. wikidata.org.
  17. [19] . SIMBAD. wikidata.org.
  18. [20] . SIMBAD. wikidata.org.
  19. [21] . wikidata.org.
  20. [22] . The SDSS Photometric Catalog, Release 7. wikidata.org.
  21. [23] . wikidata.org.
  22. [24] . The GALEX Ultraviolet Atlas of Nearby Galaxies. wikidata.org.
  23. [25] . The HIPASS catalogue — III. Optical counterparts and isolated dark galaxies. wikidata.org.
  24. [26] . The HIPASS catalogue — III. Optical counterparts and isolated dark galaxies. wikidata.org.
  25. [27] . Gaia Data Release 2. wikidata.org.

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [28] . Wikidata sitelinks. 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). NGC 991. Retrieved May 3, 2026, from https://4ort.xyz/entity/ngc-991
MLA “NGC 991.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/ngc-991.
BibTeX @misc{4ortxyz_ngc-991_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{NGC 991}}, year = {2026}, url = {https://4ort.xyz/entity/ngc-991}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): NGC 991 — https://4ort.xyz/entity/ngc-991 (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/ngc-991 · Last refreshed: