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NGC 4619

galaxy

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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 authorityQ1112938 ↗
Source-derived summary

NGC 4619 is a barred spiral galaxy in the constellation of Canes Venatici. Its velocity with respect to the cosmic microwave background is 7,176±18 km/s, which corresponds to a Hubble distance of 345.2 ± 24.2 Mly (105.84 ± 7.41 Mpc). However, 15 non-redshift measurements give a closer mean distance of 331.74 ± 12.34 Mly (101.713 ± 3.783 Mpc). It was discovered by German-British astronomer William Herschel on 1 May 1785.

NGC 4619 is a Seyfert II galaxy, i.e. it has a quasar-like nucleus with very high surface brightnesses whose spectra reveal strong, high-ionisation emission lines, but unlike quasars, the host galaxy is clearly detectable.

Supernova

One supernova has been observed in NGC 4619:

SN 2006ac (Type Ia, mag. 16.0) was discovered by the Lick Observatory Supernova Search (LOSS) on 9 February 2006.

Editorial summary

The public source identifies “NGC 4619” as galaxy. This brief keeps that definition visible, then builds a research path around galaxy.

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, 2006—that can be checked directly. The selected authority fields contribute no independent date. Its value is orientation rather than verdict, with galaxy providing the first useful test.
Editorial analysis

Why this record matters

A short description can identify a subject without explaining its stakes. For “NGC 4619”, the useful work is to connect “galaxy” to the records capable of establishing context and consequence.

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 linked authority identifier is Q1112938. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1785 and 2006.

Critical limits

Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. 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 4619”, its source revision and the description used here.
  2. Expand the search: follow NGC 4619 primary sources, NGC 4619 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 4619”?
  2. Which institution is responsible for the underlying evidence?
  3. What terminology or title could unlock a more precise catalogue search?
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Source & attribution

This entry incorporates text from “NGC 4619” 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.