Horary Astrology Horary astrology is the branch of astrology that deals with answering a question by studying the astrological charts set for the exact time and place of asking a question. The fruitful results is depend upon ,using a number between 1 and 249, each number representing the sub division of the zodiac. More recent researc studies added a new sub division (subsub) and the number range 1-2193 is also used.