In astrology, a natal chart is a stylized map of the universe with the "native" (the individual or subject or anything Created or Built to be studied) at the center. It is calculated for the exact time and location of the native's birth for the purposes of gaining insight into the native's personality and potential. Commonly used alternative names for the natal chart include birth chart, horoscope, natus, nativity, radix, geniture and genethliac chart, among others. The chart shows the positions of the sun, moon, planets, and potentially other celestial objects, all referred to as the native's "planets," within the frames of references defined by the astrological signs and houses.