- Salt (chemistry) (Wikipedia)
In chemistry, a salt is a chemical compound consisting of an ionic assembly of positively charged cations and negatively charged anions, which results in a compound with no net electric charge. A common example is table salt, with positively charged sodium ions and negatively charged chloride ions.
- Alphecca (stars.astro.illinois.edu)
ALPHECCA or GEMMA (Alpha Coronae Borealis). One of the very few stars with two commonly used names, Alphecca is the dominant (mid- second magnitude, 2.23) Alpha star of the delightful constellation Corona Borealis, the Northern Crown, a semicircle of stars to the east of Arcturus that truly reminds the viewer of a heavenly crown, the constellation representing the crown of Ariadne.
- Alpha Coronae Borealis (Wikipedia)
Alpha Coronae Borealis (α Coronae Borealis, abbreviated Alpha CrB, α CrB), officially named Alphecca /ælˈfɛkə/, is an eclipsing binary star in the constellation of Corona Borealis. It is located about 75 light years from the Sun and contains two main sequence stars, one class A and one class G.
