- Vanadium is a chemical element; it has symbol V and atomic number 23. It is a hard, silvery-grey, malleable transition metal. The elemental metal is rarely found in nature, but once isolated artificially, the formation of an oxide layer (passivation) somewhat stabilizes the free metal against further oxidation.
- Al Tarf (stars.astro.illinois.edu)
AL TARF (Beta Cancri). Surely, if Cancer (the Crab) were anywhere but on the ecliptic, the apparent pathway of the Sun, it never would have been made into a constellation by the ancients. Its brightest star, Al Tarf, is fourth magnitude, though in its favor (at 3.59) it is just over the line from third.