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Nu2 Canis Majoris

Star in the constellation Canis Major

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 12, 2026
Entity authoritySource title only
Source-derived summary

Nu2 Canis Majoris is a star in the southern constellation of Canis Major. Its name is a Bayer designation that is Latinized from ν2 Canis Majoris, and abbreviated Nu2 CMa or ν2 CMa. With an apparent visual magnitude of 3.96, it is bright enough to be seen with the naked eye, close to Sirius. An annual parallax shift of around 50.63 mas, as measured by the Gaia spacecraft, implies a distance of 66.8 light-years (20.5 pc). It is drifting further away with a line of sight velocity of +2.6 km/s. The star has two confirmed exoplanets and no known stellar companion.

Editorial summary

The public source identifies “Nu2 Canis Majoris” as star in the constellation Canis Major. This brief keeps that definition visible, then builds a research path around Canis, Majoris and Star.

Editorial reviewA practical starting point whose main value is the path it opens into stronger specialist and primary sources. The current 101-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. Its value is orientation rather than verdict, with Canis, Majoris and Star providing the first useful test.
Editorial analysis

Why this record matters

A short description can identify a subject without explaining its stakes. For “Nu2 Canis Majoris”, the useful work is to connect “star in the constellation Canis Major” 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 12, 2026.

Critical limits

The absence of detail may reflect summary conventions rather than a lack of surviving documentation. 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 “Nu2 Canis Majoris”, its source revision and the description used here.
  2. Expand the search: follow Nu2 Canis Majoris primary sources, Nu2 Canis Majoris archive and Canis 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 “Nu2 Canis Majoris”?
  2. What terminology or title could unlock a more precise catalogue search?
  3. Which institution is responsible for the underlying evidence?
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Source & attribution

This entry incorporates text from “Nu2 Canis Majoris” 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.