Description. Alprazolam (Xanax) is a benzodiazepine used to treat anxiety and panic disorder. Benzodiazepines are used to relieve anxiety, nervousness, or tension. Benzodiazepines should not be used for anxiety, nervousness, or tension caused by the stress of everyday life.
Binary Stars. Spica. Spica, Alpha Virginis, is the brightest star in the southern constellation Virgo and the 16th brightest star in the sky. It is a blue subgiant star located at a distance of 262 light years from Earth. Spica is really a close binary star system.
The brightest star in the sky, Sirius is also known as the dog star. This is because it is in the constellation of Canis Major, or the Great Dog. It's name comes from Arabic, meaning the scorched one. However, Sirius is not a lone star at all. It has a companion star, only about the size of the Earth.