An astrology birth chart consists of twelve houses, twelve signs, and nine planets. Astrological houses create a blueprint to reading your past, present, and future. The placement of each planet, asteroid or astronomical point that exists within a House, provides precious insight about your personality and your outer world. The planets are spread across all 12 houses and represent various areas of life. The specific placement of these planets in the houses at the time of your birth forms a birth chart.