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Research dossier · General Reference

NGC 547

Galaxy in the constellation Cetus

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 3, 2026
Entity authoritySource title only
Source-derived summary

NGC 547 is an elliptical galaxy and radio galaxy located in the constellation Cetus. It is located at a distance of about 214 million light years from Earth, which, given its apparent dimensions, means that NGC 547 is about 147,000 light years across. It was discovered by German-British astronomer William Herschel on October 1, 1785. It is a member of the Abell 194 galaxy cluster and is included along with NGC 547 in the Atlas of Peculiar Galaxies.

Editorial summary

This brief starts where responsible research should: with the source description of “NGC 547” as galaxy in the constellation Cetus. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—1785—that can be checked directly. The selected authority fields contribute no independent date. The account is most persuasive where Galaxy, constellation and Cetus can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the general reference register because the source frames it as galaxy in the constellation Cetus. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Sep 3, 2026. The first chronological checks are 1785.

Critical limits

A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “NGC 547”, its source revision and the description used here.
  2. Expand the search: follow NGC 547 primary sources, NGC 547 archive and Galaxy research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “NGC 547”?
  2. Which cited source is closest to the event, object or claim?
  3. What terminology or title could unlock a more precise catalogue search?
Subject index

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Source & attribution

This entry incorporates text from “NGC 547” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.