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Fomalhaut |
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Fomalhaut (fō`məlhôt'), brightest star in the constellation Piscis Austrinus (southern fish); Bayer designation Alpha Piscis Austrini; 1992 position R.A. 22h57.3m, Dec. −29°39'. A white, main-sequence star of spectral class spectral 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. ..... Click the link for more information. A3 V, its apparent magnitude magnitude, 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 ..... Click the link for more information. of 1.16 makes it one of the 20 brightest stars in the sky. Fomalhaut is one of the nearer bright stars, lying at a distance of 23 light-years. Its name is from the Arabic meaning "mouth of the southern fish." How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| This month, Clampin and his colleagues are using the Keek Observatory to hunt for planets near the lopsided ring around Fomalhaut. The newly imaged inner region of the disk comes as close to Fomalhaut as Saturn does to the sun and may mark the location of an inner asteroid belt circling the star, notes Stapelfeldt. In contrast, three other stars now known to have dust rings--Vega, Fomalhaut, and Beta Pictoris--are much younger and more massive than the sun (SN: 4/25/98, p. |
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