Canis Major

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Related to Canis Major constellation: Sirius, Canis Minor constellation

Canis Major

(kā`nĭs) [Lat.,=greater dog], constellationconstellation,
in common usage, group of stars that appear to form a configuration in the sky; properly speaking, a constellation is a definite region of the sky in which the configuration of stars is contained.
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 lying near the celestial equator, SE of Orion. Known as the Large Dog (Canis MinorCanis Minor
[Lat.,=lesser dog], small constellation ying near the celestial equator, E of Orion and NE of Canis Major, the Large Dog. Known as the Small Dog, Canis Minor is traditionally identified as one of Orion's hunting dogs. It contains the bright star Procyon.
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 is the Small Dog), it was associated with the figure of a dog by many cultures; the ancient Greeks identified it as one of Orion's hunting dogs, while the Scandinavians called it Sigurd's dog. It contains SiriusSirius
, or Dog Star,
brightest star in the sky. It is located in the constellation Canis Major (1992 position R.A. 6h44.8m, Dec. −16°42'); its Bayer designation is Alpha Canis Majoris. Sirius [Gr.
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, the brightest star in the heavens, also known as the Dog Star. Other bright stars in Canis Major are AdharaAdhara
, bright star in the constellation Canis Major; Bayer designation ε Canis Majoris; 1992 position R.A. 6h58.3m, Dec. −31°54'. A bluish-white giant (spectral class B2 II) with apparent magnitude 1.
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 (Epsilon Canis Majoris), Mirzam (Beta Canis Majoris), and Wezen (Delta Canis Majoris). The constellation reaches its highest point in the evening sky in February.

Canis Major

(kay -niss) (Great Dog) A conspicuous constellation in the southern hemisphere, lying partly in the Milky Way. The brightest stars are Sirius (α), the second brightest star in the sky (after the Sun) and one of the nearest stars to our Solar System; the 1st-magnitude giant Adhara (∊); and the giant Mirzam (β) and supergiant Wezen (δ), both close to 2nd magnitude and very remote and luminous. The area contains the open cluster M41 (NGC 2287). Another cluster, NGC 2362, apparently centered on Tau (τ) Canis Majoris, makes an interesting telescopic sight. Abbrev.: CMa; genitive form: Canis Majoris; approx. position: RA 7h, dec –20°; area: 380 sq deg.

Canis Major

 

a constellation in the southern hemisphere, whose brightest star, Sirius, has a visual stellar magnitude of -1.4. Best visibility conditions occur in December and January. Canis Major is visible in the central and southern regions of the USSR.

Canis Major

[‚kā·nəs ′mā·jər]
(astronomy)
A constellation with right ascension 7 hours, declination 20°S. Abbreviated CMa. Also known as Greater Dog.