NGC 634
galaxy in the constellation Triangulum
NGC 634 is a spiral galaxy, lying at a distance of 217.1 megalight-years away from the Milky Way in the northern constellation of Triangulum. This object was discovered on 26 October 1876 by French astronomer Édouard Stephan. It is inclined by an angle of 82.4° to the line of sight from the Earth, and thus is being viewed nearly edge on.
Supernovae
One supernovae have been observed in NGC 634:
SN 2006Q (Type II, mag. 17.2) was discovered by the Lick Observatory Supernova Search (LOSS) on January 24, 2006. It was 2.5″ east and 1.0″ north of the galactic core.
SN 2008A (Type Iax, mag. 17.6) was discovered by Yoshimi Ichimura on January 2, 2008. It was positioned 16.6 arcseconds west and 20.2 arcseconds north of the Galactic Center. This supernova reached a peak magnitude of 16.7 on January 3.
The public source identifies “NGC 634” as galaxy in the constellation Triangulum. This brief keeps that definition visible, then builds a research path around galaxy, constellation and Triangulum.
Why this record matters
A short description can identify a subject without explaining its stakes. For “NGC 634”, the useful work is to connect “galaxy in the constellation Triangulum” to the records capable of establishing context and consequence.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 3, 2026. The linked authority identifier is Q904230. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1876, 2006 and 2008.
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.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “NGC 634”, its source revision and the description used here.
- Expand the search: follow NGC 634 primary sources, NGC 634 archive and galaxy research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “NGC 634”?
- Which institution is responsible for the underlying evidence?
- What terminology or title could unlock a more precise catalogue search?
Search terms from this dossier
This entry incorporates text from “NGC 634” 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.