Mercury or Budha is the prince in astrology. It represents speech, intelligence, maternal uncles, short journeys, medical profession, trade, computers and the web, astrology and knowledge of the shastras, accounts, mathematics, journalism, printing and publishing. Its metal is bronze; gem is emerald; color is green and direction is north. Mercury takes about a month to travel a rasi. It is always within 27 degree distance from the Sun from astrological point of view.