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NGC 7840

galaxy
Galaxy Q1133153
NGC 7840
NASA · Public Domain · Wikimedia

Facts

10 properties

Identity

Instance of
galaxy, spiral galaxy[3]
More facts +9
Apparent magnitude
15.2[10]
Catalog code
NGC 7840, PGC 1345780, LEDA 1345780[6][7][8]
Constellation
Pisces[4]
Declination
8.38472°[12]
Discoverer or inventor
Albert Marth[2]
Epoch
J2000.0[13]
Galaxy morphological type
S[5]
Right ascension
1.78625°[11]
Time of discovery or invention
November 29, 1864[9]
🏷️ Also known as
en NGC 7840 ar NGC ٧٨٤٠ fa ان‌جی‌سی ۷۸۴۰ th เอ็นจีซี 7840
🔖 Identifiers · 4
Freebase ID
/m/0cz9jk8
New General Catalogue ID
7840
Principal Galaxies Catalogue ID
1345780
SIMBAD ID
LEDA 1345780

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🔗 Connections
Instance of 2
galaxy, spiral galaxy
Constellation 1
Pisces
Discoverer or inventor 1
Albert Marth
Epoch 1
J2000.0
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Summary

NGC 7840 is a galaxy[1].

Related Entities

Albert Marth

References

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

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [2] ↑ . wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . SIMBAD. wikidata.org.
  8. [9] ↑ . wikidata.org.
  9. [10] ↑ . wikidata.org.
  10. [11] ↑ . HYPERLEDA. I. Identification and designation of galaxies. wikidata.org.
  11. [12] ↑ . HYPERLEDA. I. Identification and designation of galaxies. wikidata.org.
  12. [13] ↑ . HYPERLEDA. I. Identification and designation of galaxies. 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). NGC 7840. Retrieved November 11, 2026, from https://4ort.xyz/entity/ngc-7840
MLA “NGC 7840.” 4ort.xyz Knowledge Graph, 4ort.xyz, 11 Nov. 2026, https://4ort.xyz/entity/ngc-7840.
BibTeX @misc{4ortxyz_ngc-7840_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{NGC 7840}}, year = {2026}, url = {https://4ort.xyz/entity/ngc-7840}, note = {Accessed: 2026-11-11}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): NGC 7840 — https://4ort.xyz/entity/ngc-7840 (retrieved 2026-11-11)

Canonical URL: https://4ort.xyz/entity/ngc-7840 · Last refreshed:

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. 22w ago · MsynBot bot · 2026-06-09 view diff on Wikidata ↗
    Declination → 8.38472 degree
    Right ascension → 1.78625 degree
    Epoch → J2000.0
    Discoverer or inventor → Albert Marth
    + 3 other properties edited (see Wikidata diff for full list)
    "Changed the item: remove sitelink "ruwikinews:Категория:NGC 7840" (page does not exist on client wiki; from client wiki log: page was deleted by User:Mitte27 on 2026-04-10, 20:07:34) #ruwik"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.