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.
Two bright stars, Alpha Centauri A and B, form a binary system orbiting each other at about the distance from our sun to the planet Uranus. A third star, Proxima, is much dimmer and may be gravitationally bound to the other two.These are the stars closest to Earth.wo bright stars, Alpha Centauri A and B, form a binary system orbiting each other at about the distance from our sun to the planet Uranus. A third star, Proxima, is much dimmer and may be gravitationally bound to the other two.