castor


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castor:

see beaverbeaver,
either of two large aquatic rodents, Castor fiber and Castor canadensis, known for their engineering feats. They were once widespread in N and central Eurasia except E Siberia, and in North America from the arctic tree line to the S United States.
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.

Castor

(kăs`tər), bright star in the constellation GeminiGemini
[Lat.,=the twins], northern constellation lying on the ecliptic (the sun's apparent path through the heavens) between Taurus and Cancer, N of Canis Minor; it is one of the constellations of the zodiac. Gemini is traditionally depicted as two men.
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; Bayer designation α Geminorum; 1992 position R.A. 7h34.1m, Dec. +31°54'. Slightly dimmer than PolluxPollux,
brightest star in the constellation Gemini; Bayer designation Beta Geminorum; 1992 position R.A. 7h44.8m, Dec. +28°03'. An orange giant of spectral class K0 III, it is the nearest giant star, lying at a distance of 35 light-years.
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, with which it forms the Twins, Castor has an apparent magnitudemagnitude,
in astronomy, measure of the brightness of a star or other celestial object. The stars cataloged by Ptolemy (2d cent. A.D.), all visible with the unaided eye, were ranked on a brightness scale such that the brightest stars were of 1st magnitude and the dimmest stars
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 of 1.58, which still makes it one of the 25 brightest stars in the sky. Castor is actually a six-star system, being a visual triple each component of which is a binary starbinary star
or binary system,
pair of stars that are held together by their mutual gravitational attraction and revolve about their common center of mass. In 1650 Riccioli made the first binary system discovery, that of the middle star in the Big Dipper's handle, Zeta
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; the three components are an eclipsing binary and a pair of spectroscopic binaries. The two brightest components are white, main-sequence stars of spectral classesspectral class,
in astronomy, a classification of the stars by their spectrum and luminosity. In 1885, E. C. Pickering began the first extensive attempt to classify the stars spectroscopically.
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 A1 and A5. The system is about 50 light-years distant.

Castor

(kass -ter, kahss -) (α Gem) A white star that is the second-brightest in the constellation Gemini. It is a visual triple star, the two brighter components having an orbital period of about 470 years; the third component, a flare star, is located some distance away. All three are spectroscopic binaries. mv : 1.9 (A), 2.9 (B), 1.57 (AB); Mv : 0.5 (AB); spectral type: A1 V (A), A2 V (B); distance: 15 pc.

Castor

[′kas·tər]
(astronomy)
A multiple star of spectral classification A0 in the constellation Gemini; the star α Geminorum.

castor

1. the brownish aromatic secretion of the anal glands of a beaver, used in perfumery and medicine
2. the fur of the beaver
3. a less common name for beaver
References in periodicals archive ?
Farahani and Aref (2008) conducted an experiment in which castor bean was treated with four nitrogen levels (0, 40, 80 and 120 kg ha-1) and showed that highest seed yield, biological yield and oil yield were achieved under application of 80 kg N ha-1, highest 1000 seed weight was received with 120 kg N ha-1.
La filosofia de ese plan estaba basada en controlar la poblacion en areas de gran productividad a traves del aprovechamiento del recurso, mediante la extraccion sostenida de entre 6000 a 10 000 animales por ano, motorizada por el interes del mercado por pieles del castor. Estos mercados demandaban utilizar trampas de captura humanitaria, asi como obtener pieles de mayor calidad peletera durante el otono y el invierno.
The eri silkworms fed on selected castor cultivars registered a significant variation in the economic traits viz., cocoon weight, shell weight, pupal weight, shell ratio and silk productivity.
India's global dominance makes IAPL a global giant too, with the company providing about a fourth of the world's castor oil.
The starting point of the present work is acrylated castor oil (ACO), of which only little has been published concerning its profile as a resin for coatings, except for analytical studies (Scheme 1).
Castor wax segment is projected to generate the highest CAGR during the forecast period owing to growing usage for coatings and cosmetic.
One of those who were killed three years ago was 17-year-old Michael Dela Cruz who was Castor's childhood friend.
WHAT YOU'LL NEED Filling 500g rhubarb 150g raspberries 150g castor sugar Small slice fresh ginger Crumble topping; 150g soft butter 150g castor sugar 150g porridge 120g plain flour WHAT TO DO Wash and cut rhubarb into three inch long sticks, place into oven tray with the ginger, castor sugar and a splash of water.
Udeshi, better known as 'Vamanbhai', Director of Ihsedu Agrochem, for Global Castor Lifetime Achievement Award.
Brazil has one of the smallest grain yields of castor bean (Ricinus communis L.) among the producing countries, with an average of approximately 300 kg [ha.sup.-1] (Sa et al., 2015), because of the low use of technology in the production systems.