It was believed that Regiomantanus was mistaken with his interpretation of Ptolemy. Although Regiomontanus believed he had fulfilled all the conditions put forward by the great Ptolemy, he had come under fire with his house system. And also by publishing his Tables of Houses with fully calculated house cusps he ensured a wide dissemination of this method.' Regiomontanusįor the learned astrology, Ptolemy was the unimpeachable authority in astronomy. In it, he also constructed house tables in the Ptolemaic way, of which the results were similar to that of Placidus.' Knappich further on: 'Therefore Placidus had many forerunners and exponents of the 'Ptolemaic Method' at the time and his contribution was only that he gave this method a completely new philosophical foundation.

Hilarius Altobelli also made a critique of the then known house systems in his 'Tabulae Regiae divisorum duodecim partium coeli ad mentem Ptolemaei' (1628). Knappich: 'After Magini another Italian astrologer P. The Italian monk and mathmatician Placidus de Titis (1603-1668) is erroneously considered to be the 'Founding Father' of this system. The essential idea is that the conditions laid out by Ptolemy for the Primary Directions are also used to formulate and calculate the so-called Placidus House System. The mathematical foundations for the house system that is most popular today, were first calculated and formulated by the astronomer, mathematician and cartographer Giovanni Magini. Get Your Natal ChartĮnter your Date of Birth, Your exact time of birth and place of birth to generate your Natal chart online and find the position of planets, sun and moon at the time of your birth.Chart according to Ptolemaic method Magini You can use our birth chart system to calculate your natal chart and find out what it means for you.For accurate prediction, you need to put in your Time Of Birth (TOB), Date Of Birth (DOB)and Place Of Birth (POB) and the system calculates your wheel graphic and gives an interpretation of your personality. These degrees, known as angles, are needed to mark the position of the native’s twelve houses. The accurate time of birth and location are very important for the calculation of the exact degree of the signs that are rising or setting. Therefore dawning the Natal chart is of paramount importance. The astrological prediction is purely based on the birth chart drawn so.

The chart drawn precisely calculates the positions of the Sun, moon and planets to an exact degree.

The planets are placed in each of these houses and they influence each other positively or negatively. A chart is drawn and cut into 12 houses and each house is ruled by a Zodiac sign.

The stars in the sky make up constellations in the sky and they reside in 12 sections or houses.

House calculation astrology