Fat Jon quotAltaisquot

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=HX9xzpAUgCA

Album - Hundred Eight Stars • • Info. on Star: Altais (Delta Draconis) • Altais, while an actual Arabic word, is here a corruption of a different Arabic word that refers to a serpent, and consequently, to Draco itself. Delta Draconis also goes yet another name, Nodus Secundus (Nodus II), as it marks the second (Secundus) of four loops in the Dragon's long winding mythological body . Nicely visible at mid-third magnitude (3.07), and one of the brighter stars of the far north, it lies only a bit more than 20 degrees from the sky's north pole (marked by Polaris), and is circumpolar (always visible) from everywhere north of the Tropic of Cancer. Within its daily circle about the North Celestial Pole, it is exceeded in brightness only by Polaris, Kochab, and Pherkad, the Alpha, Beta, and Gamma stars of Ursa Minor.Its luminosity and temperature combine to yield a mass almost exactly 2.5 times solar and an age of 700 million years. Altais is a fine example of a helium-fusing giant, one that is now converting its core helium into carbon and oxygen. Sometime in the astronomically near future, the helium will run out and the star will brighten as it prepares to slough its outer envelope and become a mid-mass white dwarf. It is not clear whether Altais is a single or double star...more go to... http://www.astro.uiuc.edu/~kaler/sow/...

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