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 term binary star is a misnomer because it is actually a star system made up of usually two stars that orbit around one center of mass â where the mass is most concentrated.strometric binary stars are systems in which only one star can be observed, and the otherâs presence is inferred by the noticeable wobble of the first star. This wobble happens as a result of the smaller starâs slight gravitational influence on the larger star.