Carina

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Carina

(kərē`nə) [Lat.,=the keel], southern 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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, representing the keel of the ancient constellation Argo Navis, or Ship of the Argonauts. Carina contains CanopusCanopus,
in astronomy, 2d brightest star in the sky, located in the constellation Carina, which is part of the ancient constellation Argo Navis; Bayer designation α Carinae; 1992 position R.A. 6h23.8m, Dec. −52°41'.
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, the second brightest star in the sky. It also contains the False Cross, a combination of four stars very similar to the Southern Cross (see CruxCrux
[Lat.,=cross], small but brilliant southern constellation whose four most prominent members form a Latin cross, the famous Southern Cross. The long arm of the cross, terminating in the brightest member, Acrux (Alpha Crucis), points almost directly at the south celestial
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); however, the long axis of the False Cross does not point toward the south celestial pole. In the 1840s a nova associated with η Carinae, a binary star consisting of a massive star with at least 90 times the mass of the sun (and perhaps more than 120 times the mass) and a companion with about 30 times the sun's mass, was observed in Carina. The nova made η Carinae the second brightest star in the sky for a time, and produced the Homunculus Nebula. The star also lies within the much larger Eta Carinae Nebula, one of the largest diffuse nebulae. Carina reaches its highest point in the evening sky in March.

Carina

(kă-ree -nă, -rÿ ) (Keel) A constellation in the southern hemisphere near Crux. It was once part of the constellation Argo. The brightest stars are the bright white giant Canopus (α) and some 1st-and 2nd-magnitude stars. The irregular variable star Eta (η) Carinae is associated with extensive nebulosity (see Eta Carinae; Eta Carinae Nebula). The area also contains two open clusters: the 2nd-magnitude IC 2602, centered on Theta (θ) Carinae, and the brilliant NGC 3532, located just west of Eta Carinae; and the large globular cluster NGC 2808. Abbrev.: Car; genitive form: Carinae; approx. position: RA 9h, dec –60°; area: 494 sq deg.

Carina

 

(in birds, keel), a longitudinal process of the sternum that serves for attachment of the well-developed pectoral muscles in a number of vertebrates.

The presence of the carina is connected with the character of movement of the anterior extremities: a carina is present in some rooting animals (moles) and is especially well developed in flying animals (the extinct flying lizards, or pterosaurs; birds; bats). In birds, the degree of development and particular features of the shape of the keel are associated with the type of flight. Carinatae, which fly well (for example, hummingbirds and martlets), have an especially large keel. A keel is also present in birds that are incapable of flight but swim by means of their wings (for example, penguins). In flightless birds (ostriches, certain water rails, and parrots), the keel is absent or very poorly developed. In some swans and cranes the keel is hollow and encloses part of the convoluted trachea, which acts as a resonator.

carina

[kə′rī·nə]
(biology)
A ridge or a keel-shaped anatomical structure.
(vertebrate zoology)

Carina

[kə′rī·nə]
(astronomy)
A constellation, right ascension 9 hours, declination 60°S. Abbreviated Car. Also known as Keel.
References in periodicals archive ?
Video assisted thoracoscopic surgery tracheal resection and carinal reconstruction for tracheal adenoid cystic carcinoma.
It is present along almost the entire plate and gradually becomes crude at the posterior margin with the carinal process, resembling the specimens of Dunkleosteus illustrated by Heintz (1932, text-fig.
Hong, and P Sriragavan, "Carinal resection for stenotic tuberculosis tracheitis," Thorax, vol.
Treatment of severe carinal stenosis with overlapping metallic endoprosthesis.
The hydraulic architecture of Equisetum stems has yet to be elucidated, although the carinal canals in each internode appear to provide low resistance pathways through internodes, analogous to the role played by vessels in angiosperms (Leroux et al., 2011; Xia et al., 1993; Bierhorst, 1958).
Surgical technique and results of tracheal and carinal replacement with aortic allografts for salivary gland-type carcinoma.
La longitud de los organos falcados como las flores, el estandarte, la quilla y el gineceo se midio en linea recta de la base al apice; y las dimensiones del caliz se registraron en el costado carinal incluido el espolon.
Head: Entirely yellow, only ocelli ringed with black, fr broad, converging anteriorly so that at level of antennae it is about 0.7 as wide as at level of anterior oc, face small, depressed (carinal area not visible), eye narrow, oval, lying oblique, gena yellow, shrivelled, probably about half height of eye and having numerous yellow setulae, setae at vibrissal corner not seen, mouthparts yellow, 4 setulae on fr with 2 pairs of longer setulae, one above lunule and one in front of oc triangle, 2 short orb and in front of these 2 very short fine setulae,1 vti and 1 vte,pvt distinct and convergent, oc long, divergent, antennal segment 3 yellow, arista dark brown on apical 2/3 of segment 2 of arista.
Nomenclature and mensuration primarily follow Stahnke (1970), with the following exceptions: metasomal carinal terminology after Francke (1977), pedipalp carinae terminology after Acosta et al.
1 mm de largo) y petalo carinal glabro en ambas caras, apice entero y los petalos laterales, 3-4 x ca.