Delta Canis Majoris

Wezenδ CMaδ Canis MajorisDeltaδ Canis Majoris Aaδ CMa (Wezen)
Delta Canis Majoris (Latinised from δ Canis Majoris, abbreviated Delta CMa, δ CMa), officially named Wezen, is a star in the constellation of Canis Major.wikipedia
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Canis Major

CMaGreat DogCanis Major constellation
Delta Canis Majoris (Latinised from δ Canis Majoris, abbreviated Delta CMa, δ CMa), officially named Wezen, is a star in the constellation of Canis Major.
Next in brightness are the yellow-white supergiant Delta (Wezen) at 1.8, the blue-white giant Beta (Mirzam) at 2.0, blue-white supergiants Eta (Aludra) at 2.4 and Omicron 1 at 3.0, and white spectroscopic binary Zeta (Furud), also at 3.0.

Epsilon Canis Majoris

Adharaε CMaε Canis Majoris
Delta Canis Majoris is the third-brightest star in the constellation after Sirius and ε Canis Majoris (Adhara), with an apparent magnitude of +1.83, and is white or yellow-white in colour. In Chinese, 弧矢 (Hú Shǐ), meaning Bow and Arrow, refers to an asterism consisting of δ Canis Majoris, ε Canis Majoris, η Canis Majoris, κ Canis Majoris, ο Puppis, π Puppis, χ Puppis, c Puppis and k Puppis. This star, along with ε Canis Majoris (Adhara), η Canis Majoris (Aludra) and ο 2 Canis Majoris (Thanih al Adzari), were Al ʽAdhārā, the Virgins.
Along with δ Canis Majoris (Wezen), η Canis Majoris (Aludra) and ο² Canis Majoris (Thanih al Adzari), these stars were Al ʽAdhārā, 'the Virgins'.

NGC 2354

The open cluster NGC 2354 is located only 1.3 degrees east of Delta Canis Majoris.
It lies 2 degrees southwest from NGC 2362 and northeast of Delta Canis Majoris.

Eta Canis Majoris

Aludraη Canis Majorisη CMa
In Chinese, 弧矢 (Hú Shǐ), meaning Bow and Arrow, refers to an asterism consisting of δ Canis Majoris, ε Canis Majoris, η Canis Majoris, κ Canis Majoris, ο Puppis, π Puppis, χ Puppis, c Puppis and k Puppis. This star, along with ε Canis Majoris (Adhara), η Canis Majoris (Aludra) and ο 2 Canis Majoris (Thanih al Adzari), were Al ʽAdhārā, the Virgins.
This star, along with Epsilon Canis Majoris (Adhara), Delta Canis Majoris (Wezen) and Omicron 2 Canis Majoris (Thanih al Adzari), were Al ʽAdhārā, 'the Virgins'.

Kappa Canis Majoris

κ Canis Majorisκ CMa
In Chinese, 弧矢 (Hú Shǐ), meaning Bow and Arrow, refers to an asterism consisting of δ Canis Majoris, ε Canis Majoris, η Canis Majoris, κ Canis Majoris, ο Puppis, π Puppis, χ Puppis, c Puppis and k Puppis.
In Chinese, 弧矢 (Hú Shǐ), meaning Bow and Arrow, refers to an asterism consisting of κ Canis Majoris, δ Canis Majoris, η Canis Majoris, HD 63032, HD 65456, ο Puppis, k Puppis, ε Canis Majoris and π Puppis.

Omicron Puppis

ο Pupο Puppis
In Chinese, 弧矢 (Hú Shǐ), meaning Bow and Arrow, refers to an asterism consisting of δ Canis Majoris, ε Canis Majoris, η Canis Majoris, κ Canis Majoris, ο Puppis, π Puppis, χ Puppis, c Puppis and k Puppis.
In Chinese, 弧矢 (Hú Shǐ), meaning Bow and Arrow, refers to an asterism consisting of ο Puppis, δ Canis Majoris, η Canis Majoris, HD 63032, HD 65456, k Puppis, ε Canis Majoris, κ Canis Majoris and π Puppis.

Pi Puppis

π Puppisπ PupPi
In Chinese, 弧矢 (Hú Shǐ), meaning Bow and Arrow, refers to an asterism consisting of δ Canis Majoris, ε Canis Majoris, η Canis Majoris, κ Canis Majoris, ο Puppis, π Puppis, χ Puppis, c Puppis and k Puppis.
In Chinese, 弧矢 (Hú Shǐ), meaning Bow and Arrow, refers to an asterism consisting of π Puppis, δ Canis Majoris, η Canis Majoris, HD 63032, HD 65456, ο Puppis, k Puppis, ε Canis Majoris and κ Canis Majoris.

Flag of Brazil

Brazilian flagflagBrazil
Delta Canis Majoris appears on the flag of Brazil, symbolising the state of Roraima.

Omicron2 Canis Majoris

ο 2 CMaOmicron 2 Canis Majorisο 2 Canis Majoris
This star, along with ε Canis Majoris (Adhara), η Canis Majoris (Aludra) and ο 2 Canis Majoris (Thanih al Adzari), were Al ʽAdhārā, the Virgins.
This star, along with ε CMa (Adhara), δ CMa (Wezen) and η CMa (Aludra), were Al ʽAdhārā, the Virgins.

Latinisation of names

LatinizedLatinisedlatinisation
Delta Canis Majoris (Latinised from δ Canis Majoris, abbreviated Delta CMa, δ CMa), officially named Wezen, is a star in the constellation of Canis Major.

Star

starsstellarmassive star
Delta Canis Majoris (Latinised from δ Canis Majoris, abbreviated Delta CMa, δ CMa), officially named Wezen, is a star in the constellation of Canis Major.

Constellation

constellationsEuropean constellationModern constellation
Delta Canis Majoris (Latinised from δ Canis Majoris, abbreviated Delta CMa, δ CMa), officially named Wezen, is a star in the constellation of Canis Major.

Stellar classification

spectral typeK-typeG-type
It is a yellow-white F-type supergiant with an apparent magnitude of +1.83.

Apparent magnitude

apparent visual magnitudemagnitudevisual magnitude
Delta Canis Majoris is the third-brightest star in the constellation after Sirius and ε Canis Majoris (Adhara), with an apparent magnitude of +1.83, and is white or yellow-white in colour. It is a yellow-white F-type supergiant with an apparent magnitude of +1.83.

Astronomical spectroscopy

spectrumspectroscopicspectra
Since 1943, the spectrum of this star has served as one of the stable anchor points by which other stars are classified.

Sirius

Sirius BSirius superclusterDog Star
Delta Canis Majoris is the third-brightest star in the constellation after Sirius and ε Canis Majoris (Adhara), with an apparent magnitude of +1.83, and is white or yellow-white in colour.

Northern Hemisphere

NorthernNorth HemisphereNorthern Hemispheric
As with the rest of Canis Major, Delta Canis Majoris is most visible in winter skies in the northern hemisphere, and summer skies in the southern.

Bayer designation

BayerdesignationBayer letter
δ Canis Majoris (Latinised to Delta Canis Majoris) is the star's Bayer designation.

Arabic

Arabic languageArabic-languageArab
The traditional name, Wezen (alternatively Wesen, or Wezea), is derived from the medieval Arabic وزن al-wazn, which means 'weight' in modern Arabic.

Beta Centauri

Hadarβ Centauriβ Cen
The name was for one of a pair of stars, the other being Hadar, which has now come to refer to Beta Centauri.

Alpha Centauri

Alpha Centauri BAlpha Centauri Aα Centauri
It is unclear whether the pair of stars was originally Alpha and Beta Centauri or Alpha and Beta Columbae.

Alpha Columbae

Phactα ColAlpha
It is unclear whether the pair of stars was originally Alpha and Beta Centauri or Alpha and Beta Columbae.

Beta Columbae

β Colβ ColumbaeWazn
It is unclear whether the pair of stars was originally Alpha and Beta Centauri or Alpha and Beta Columbae.

Star Names

Richard Hinckley AllenStar Names: Their Lore and MeaningR. H. Allen
Richard Hinckley Allen muses that the name alludes to the difficulty the star has rising above the horizon in the northern hemisphere.

James B. Kaler

Jim KalerJames Bailey Kaler
Astronomer Jim Kaler has noted the aptness of the traditional name given the star's massive nature.