The ascendant is calculated thanks to the knowledge of the time and place of birth of the person. Learn about Sun in 9th House for Pisces Ascendant.
Some astrologers calculate it using software, others using house tables. These latter indicate in particular what is the degree of the ecliptic where the ascendant is located as a function of the sidereal time of the astral chart considered and of the geographical latitude of the place for which the chart is drawn up. These are tables indicating the ecliptic longitude sought in consecutive columns (each corresponding to a given latitude) with sidereal time in the first column. Also learn about Sun in 10th House for Pisces Ascendant.