Canopus

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Canopus

(kənō`pəs), ancient city of N Egypt, 12 mi (19 km) E of Alexandria. Canopus, the pilot of MenelausMenelaus
, in Greek mythology, king of Sparta, son of Atreus. He was the husband of Helen, father of Hermione, and younger brother of Agamemnon. When Paris, prince of Troy, abducted Helen, Menelaus asked the other Greek kings to join him in an expedition against Troy, beginning
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' ship, was said to have died there. In Hellenistic times Canopus was known as a pleasure city for the rich. Vases capped with the figure of a human head, called Canopic vases, were used to hold the viscera of embalmed bodies. The Decree of Canopus, issued there in 238 B.C. and found at Tanis, has been of value in studying the ancient Egyptian language. The eastern portion of the city was submerged and not rediscovered (along with Thonis-Heracleion) until 2000. The modern village of Abu QirAbu Qir
or Abukir
, village, N Egypt, on a promontory in the Nile River delta. Admiral Horatio Nelson's victory over the French fleet off Abu Qir on Aug. 1–2, 1798 (sometimes called the battle of the Nile), restored British prestige in the Mediterranean region
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 is near the ancient ruins.

Canopus,

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'. It 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 −0.72, second only to Sirius among the bright stars. Canopus is a yellowish-white giant star of spectral classspectral 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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 F0 I-II. Its distance is about 100 light-years. It is probably named after the ancient Egyptian city of Canopus.

Canopus

(kă-noh -pŭs) (α Car) A conspicuous and luminous white giant that is the brightest star in the constellation Carina and the third-brightest star in the sky after the Sun and Sirius. mv : –0.72; Mv : –2.5; spectral type: A9 II; distance: 23 pc.

Canopus

[kə′nō·pəs]
(astronomy)
A star that is 180 light-years from the sun; spectral classification F0Ia. Also known as α Carinae.

Canopus

a port in ancient Egypt east of Alexandria where granite monuments have been found inscribed with the name of Rameses II and written in languages similar to those of the Rosetta stone