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NGC 1023

barred spiral galaxy in the constellation Perseus
Thing Interacting Galaxy Q639434

Facts

15 properties
Instance of
interacting galaxy, barred spiral galaxy, lenticular galaxy, interacting galaxies[2][3][4]
Followed by
NGC 1024[6]
Part of
NGC 1023 Group, [CHM2007] HDC 155, [CHM2007] LDC 160, [T2015] nest 200807, [TSK2008] 324[9][10][11][12][13]
Apparent magnitude
6.24 (6.24–10.9, n=7)[27][28][29][30][31][32][33]
Catalog code
NGC 1023, MCG+06-06-073, UGC 2154, PGC 10123, 2MASX J02402401+3903477, APG 135, Z 523-83, UZC J024023.8+390347, Z 0237.2+3851, LEDA 10123[14][15][16][17][18][19][20][21][22][23]
Constellation
Perseus[5]
Declination
39.0632500°[50]
Discoverer or inventor
William Herschel[1]
Distance from Earth
10.42 Mpc[44][45][46][47][48]
Epoch
J2000.0[51]
Galaxy morphological type
E/SB0, SB(rs)0-[7][8]
Radial velocity
645 km/s[34][35][36][37][38][39][40][41][42][43]
Redshift
0.002071, 0.002125[25][26]
Right ascension
40.1000500°[49]
Time of discovery or invention
October 18, 1786[24]
🏷️ Also known as
en New General Catalogue 1023 ar NGC ١٠٢٣ cs Arp 135 fa ان‌جی‌سی ۱۰۲۳ fa ان جی سی 1023 fa ان جی سی ۱۰۲۳ fr NGC1023
🔖 Identifiers · 9
Image (Wikimedia Commons)
NGC1023 JeffJohnson.jpg ↗
Freebase ID
/m/0fpgxd5
Gaia ID
334230923297722368
New General Catalogue ID
1023
Principal Galaxies Catalogue ID
10123
SIMBAD ID
NGC 1023
Topic's main category
Category:NGC 1023
Uppsala General Catalogue ID
2154
Wolfram Language entity code
Entity["Galaxy", "NGC1023"]

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References

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

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [3] ↑ . haroldcorwin.net. Retrieved . haroldcorwin.net. Provenance: wikidata.org.
  3. [4] ↑ . SIMBAD. wikidata.org.
  4. [5] ↑ . VizieR. wikidata.org.
  5. [1] ↑ . wikidata.org.
  6. [6] ↑ . wikidata.org.
  7. [7] ↑ . wikidata.org.
  8. [8] ↑ . Peanuts at an angle: detecting and measuring the three-dimensional structure of bars in moderately inclined galaxies. wikidata.org.
  9. [9] ↑ . wikidata.org.
  10. [10] ↑ . SIMBAD. wikidata.org.
  11. [11] ↑ . SIMBAD. wikidata.org.
  12. [12] ↑ . SIMBAD. wikidata.org.
  13. [13] ↑ . SIMBAD. wikidata.org.
  14. [14] ↑ . SIMBAD. wikidata.org.
  15. [15] ↑ . SIMBAD. wikidata.org.
  16. [16] ↑ . SIMBAD. wikidata.org.
  17. [17] ↑ . SIMBAD. Retrieved . haroldcorwin.net. Provenance: wikidata.org.
  18. [18] ↑ . SIMBAD. wikidata.org.
  19. [19] ↑ . SIMBAD. wikidata.org.
  20. [20] ↑ . SIMBAD. wikidata.org.
  21. [21] ↑ . SIMBAD. wikidata.org.
  22. [22] ↑ . SIMBAD. wikidata.org.
  23. [23] ↑ . SIMBAD. wikidata.org.
  24. [24] ↑ . wikidata.org.
  25. [25] ↑ . wikidata.org.
  26. [26] ↑ . Третий справочный каталог ярких галактик. wikidata.org.
  27. [27] ↑ . The GALEX Ultraviolet Atlas of Nearby Galaxies. wikidata.org.
  28. [28] ↑ . The GALEX Ultraviolet Atlas of Nearby Galaxies. wikidata.org.
  29. [29] ↑ . The GALEX Ultraviolet Atlas of Nearby Galaxies. wikidata.org.
  30. [30] ↑ . Dwarf galaxies in the NGC 1023 group. wikidata.org.
  31. [31] ↑ . The Two Micron All Sky Survey (2MASS). wikidata.org.
  32. [32] ↑ . The Two Micron All Sky Survey (2MASS). wikidata.org.
  33. [33] ↑ . The Two Micron All Sky Survey (2MASS). wikidata.org.
  34. [34] ↑ . Cosmicflows-3. wikidata.org.
  35. [35] ↑ . Hunting for supermassive black holes in nearby galaxies with the Hobby-Eberly telescope. wikidata.org.
  36. [36] ↑ . Dwarf galaxies in the NGC 1023 group. wikidata.org.
  37. [37] ↑ . Cosmic flows: Green Bank Telescope and Parkes H I observations. wikidata.org.
  38. [38] ↑ . Groups of Galaxies in the Two Micron All Sky Redshift Survey. wikidata.org.
  39. [39] ↑ . The WSRT wide-field HI survey. I. The background galaxy sample. wikidata.org.
  40. [40] ↑ . A Search for “Dwarf'' Seyfert Nuclei. III. Spectroscopic Parameters and Properties of the Host Galaxies. wikidata.org.
  41. [41] ↑ . A search for 'dwarf' Seyfert nuclei. 2: an optical spectral atlas of the nuclei of nearby galaxies. wikidata.org.
  42. [42] ↑ . General study of group membership. II. Determination of nearby groups. wikidata.org.
  43. [43] ↑ . Uppsala General Catalogue of Galaxies. Data for 12,921 galaxies north of delta =-2 30. wikidata.org.
  44. [44] ↑ . Cosmicflows-3. wikidata.org.
  45. [45] ↑ . The ATLAS3D project - I. A volume-limited sample of 260 nearby early-type galaxies: science goals and selection criteria. wikidata.org.
  46. [46] ↑ . Our Peculiar Motion Away from the Local Void. wikidata.org.
  47. [47] ↑ . The GALEX Ultraviolet Atlas of Nearby Galaxies. wikidata.org.
  48. [48] ↑ . Groups of Galaxies in the Two Micron All Sky Redshift Survey. wikidata.org.
  49. [49] ↑ . The Two Micron All Sky Survey (2MASS). wikidata.org.
  50. [50] ↑ . The Two Micron All Sky Survey (2MASS). wikidata.org.
  51. [51] ↑ . The Two Micron All Sky Survey (2MASS). 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). NGC 1023. Retrieved November 14, 2026, from https://4ort.xyz/entity/ngc-1023
MLA “NGC 1023.” 4ort.xyz Knowledge Graph, 4ort.xyz, 14 Nov. 2026, https://4ort.xyz/entity/ngc-1023.
BibTeX @misc{4ortxyz_ngc-1023_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{NGC 1023}}, year = {2026}, url = {https://4ort.xyz/entity/ngc-1023}, note = {Accessed: 2026-11-14}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): NGC 1023 — https://4ort.xyz/entity/ngc-1023 (retrieved 2026-11-14)

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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 16w ago · JAnDbot bot · 2026-07-22 view diff on Wikidata ↗
    SIMBAD ID → NGC 1023
    Declination → 39.06325 degree
    Time of discovery or invention → October 18, 1786
    Radial velocity → 645 kilometre per second, 570.5 kilometre per second, 637 kilometre per second +7
    + 22 other properties edited (see Wikidata diff for full list)
    "Created claim: Followed by: NGC 1024"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.