How Cardan exercised Astrology

I am reading Cardan’s “De exemplis centum geniturarum” (Examples of 100 Horoscopes) this morning, so I want to share with you his approach in examining a natal chart, which I think is more of an exercising of his astrological abilities presented in this book.

In the 4th geniture, he gives and explains the chart of his father Fazio Cardan. Fazio Cardano (1444 – August 28, 1524) was famous mathematician and professor, lover of the occult sciences and friend with Leonardo da Vinci. In his 50’s married a young widow in her 30’s whose all 3 children from the first marriage died, and Jerome Cardan was actually a child born after a failed abortion. Fazio was pretty old when Jerome was born.

This is the geniture as it is given in Libelli Quinque:


His chart calculated in modern astrology software (with longitudes of certain planets slightly off of the values giving by Cardan):


Here Cardan uses the so called Equal House system (Iuxta gradus aequales) and later in his life, in his commentaries on Ptolemy (published 1554), he used Regiomontanus house system.
As you can see in the box with information, inside the chart, it is given the degree of the MC because in the Equal House system, this doesn’t coincide with the 10th house cusp.

Cardan is pretty much basic-oriented in his explanations of these charts. He gives the longitudinal coincidences of certain planets (and angles) with fixed stars and then tries to find correlation with the significations of the stars and planets with certain accidents in person’s life.

He starts with giving the coincidence of the longitudinal positions of the planets with certain stars.I will give the Latin names of the stars as they are given in his book.

Saturn is with Borealis Cancris, nature Saturn/Mercury, 5th magnitude.

Jupiter is with Extra Formam Cancri, nature Saturn/Mercury, 4th magnitude.

Mars is with Extremitas Pedis Dextri Praecedentis, nature of Mercury and little bit of Venus, 4th magnitude.

Sun is with Asinus, 4th magnitude, nature of Mars/Sun.

Ascendant with Apolline, nature of Mercury, magnitude 2.

Co-ascends Orion Cingulus, nature of Saturn and Jupiter.

With MC is Ventre Piscis, 5th magnitude, nature Mercury and Mars.

He names all the stars just to have them as a point of reference in his future analysis, and then he goes on to explain the position of the planets

Calculating the length of life, Cardan notices Sun in its own sign in Ascendant with Jupiter. Venus and Saturn also on ascendant, increase the strength of life, yet there are malice effects also. His length of life was 79 years, concludes Cardan. So, he doesn’t follow the Hyleg & Alcocoden procedure or any other established practice of the predecessors, he just follows his astrological logic and examines the planets on ascendant, although very briefly, just makes a short notice.

Next Cardan makes notice about his father’s immense love for study. He sees the star Orionis Cingulus co-ascending, while Saturn adds patience and labor. The genius is given by the star Apolline (nature Mercury), but also by Orion Cingulus (nature Saturn and Jupiter).

Fazio’s interest in occult matters, Cardan delineates through Saturn on ascendant and Moon in 6th in trine with Mercury. Saturn is very esoteric planet, and being on ascendant is one indication of a person whose nature is to study the secrets and mysteries. Fazio was involved in the practice of Necromancy too, and here it is why Cardan adds the point that Moon (representing mind) is in 6th (bad fortune, diseases) in trine with Mercury (curiosity, interest, intellect). So, the interest in such a non-orthodox type of divination such as Necromancy, is seen by Cardan to has something to do with the bad placement of Moon, lady of ascendant, in 6th house, a house filled with bad significations, with Saturn on ascendant adding to that.

Fazio lost all his teeth in his 58 year, and then lived 21 year without teeth.
Saturn [representing the teeth] in ascendant in debilitated sign, under the Sun’s rays, is the cause for the lost of the teeth, according to Cardan. Probably the star of Saturn’s nature in the longitudinal position of Saturn, added to this, concludes Cardan.

Sun with unfortunate star Assinus, and Moon in 6th, corrupted his eyes.

That he was a man of integrity, is seen by the presence of Moon, Lady of Asc, in domicile of Jupiter and trine Mercury in domicile of Sun. Also, Jupiter with Sun in its own domicile in the 1st house. These are the factors according to Cardan, which added to his integrity and dignity.

What is interesting for me in studying Cardan and Gauricos (from the Renaissance masters) is that they even though read the old masters, they used their own logic and made the experience their greatest teacher. They drew charts and studied them day by day, making connections and concluding with deductions as to why something in someone’s life happened according to which symbols in the natal chart. Thus, examining hundreds and hundreds of horoscopes, they build their enormous corpus of knowledge and experience which later on gave them the ability to predict future events.

Dividing the Year into 13 monthly Revolutions

Happy New Year!

I have not blogged for a while. I felt the need to let the material I presented here to play a little in our heads and to actually incorporate the material in our astrological practice.

I have studied late medieval and early Renaissance astrology in the previous month due to the need of an investigation of a more practical approach in my astrology. I was particularly interested in learning more about the Solar Revolutions, and while I was studying Abu Ma’shar’s On Solar Revolutions I felt the need to see those principles applied in actual prognosis.

I like the predictive art, and being practical astrologer dealing with clients, I want to get better and better in actual prediction and not merely astrological researching or theorizing. When you have a client, all they ask (many of them) is “what to expect from the year in front of me”. This is the answer most often asked from astrologer. The other question which is also very often asked is “When will I marry” and “When will I have children” et cetera. Very rarely you would be asked to delineate a chart from a Spiritual Astrology perspective [though this kind of question is not excluded also].

So, when you deal with clients you want to be able to predict. They don’t want to know where Masha’allah and Umar disagree or whether I use whole-signs or alcabitius divisions. They want to know “what to expect from life and particularly from the following year”.

For getting better in this I throw my eye in the Renaissance Astrologers like: Regiomontanus, Schoener, Cardan, Morinus and Gauricus. I found that Google Books contains good deal of these books in Latin language, which sparked my enthusiasm for learning even more.

What I found in reading those authors is that they are practical embodiment of the Perso-Arabian astrology. They learned those principles and incorporated them in their astrological practice.

In particular, when I investigated their Solar Revolutions practice, I also found that they [especially Gauricus and Schoener] use monthly revolutions which I never used or even heard before. That is, dividing the year into 13 monthly revolutions.

Now, I have heard and I have used 13 monthly profections in a year. Morinus software luckily, has that option incorporated in it; but I have never used those 13 monthly revolutions in a year, so when I started using them I found that they are very, very useful and precise in life description of the actual month.

Divisions of monthly profections in a year by 13

Now, if you press Ctrl in Morinus software and then press F7 while holding Ctrl (Ctrl + F7) you would calculate the monthly profections in a successive row of life years. Then if you press the year in question with left mouse click, an option would ask you if you want monthly profections by 12 or 13. You will click 13 and then Morinus software will calculate the division of the year by 13 monthly profections.

I use those profections and I found them very useful and precise!

In the analysis of the Three Annual Horoscopes for Ferdinand I, Gauricus used the Lord of the Monthly Profections and [lord of the sign of the monthly profections] and delineated its state in the monthly revolutions of the type of which we are speaking here.

Dividing the Year into 13 monthly Revolutions

Usual monthly revolutions we use today are so called “Lunar Returns” in which the chart was drawn for every successive month when Moon comes exactly at the position she had in the nativity.

But Ptolemy’s [or pseudo-Ptolemy] Centiloquium [aphorism 87], and especially the comment of Haly ibn-Ridwan speaks about another kind of monthly revolutions:

Tempus mutationis signorum in revolutione ex parte signi profectionis sunt XXVIII dies et due hore: et XVIII minuta unius hore fere. Ex parte autem ascendenti hemisperio seu in oriente XXVIII dies: et quinta diei fere mensis vero solaris est a mutatione solis de gradu in quo fuerit nativitas in gradu sibi consimilem in signo altero.

In revolution, the time of changes of the signs based upon the profections’ sign are 28 days, 2 hours and about 18 minutes. Based upon the ascending hemisphere, that is, the one oriental, 28 days and about a fifth of a day. Solar months, on the other hand, rely on the changes of the Sun from the degree that held in the nativity to the exact degree in the following sign.

As I understand the text here, and by the comment upon the aphorism from Haly which Rumen K. Kolev has transliterated it in his translation of Lucas Gauricus – Three Annual Charts for Ferdinand I, is that the text actually speaks about 3 kinds of monthly revolutions. The one based upon logic of monthly profections, dividing the year 365.25 into 13 of 28 days, 2 hours and about 17-18 minutes. The other based upon the successive revolution of the SolarRevolution Ascendant in every subsequent year; and the third is that of the revolution of the Sun in every particular year, that is, drawing a chart for the exact moment when the Sun enters the same degree [in every following sign starting from the solar revolution] that held in the nativity and hence in the Solar Revolution. So if Sun in the nativity is in 5° 25′ Leo, then in the Solar Revolution would normally be there. Then the chart for the next month will be drawn for the exact moment when Sun enters 5° 25′ Virgo and so on.

I didn’t try the other two methods, but I am very excited using the first method, and combining it with the monthly profections divided by 13, just as Gauricus did in his analysis to the annual charts of Ferdinand I.

Thanks to the Astrologer Margherita Fiorello, I learned that the astrologers from Ciello e Terra use this same method too, so I read this interesting article by very good Italian Astrologer by name Mario Costantino, where he uses the same method in his analysis:

Schoener in his De Iudiciis Nativitatum Libr. III [picture right],  and Lucas Gauricus in his Tractatus Iudicandi Conversiones Sive Revolutiones Nativitatum [picture left], gives tables about the same method:

Conserviones LunaeTabula Conservionum Menstruarum Lunae

Here is a modern table of this:

Modern Table of Moon Conversions

So what you are doing with this method, is that you start calculating from the hour of the Solar Revolution of the year.
For doing this more precisely, at least, when days are in question, you can use this useful web tool:

So, when you find the time and day needed, you draw a chart for that moment. This would be your monthly revolution.

Delineating Monthly Revolution

What you would do when you look at this chart, is that you will first notice the Ruler of the Month, that is, the planet which rules the sign where the ascendant came by monthly profections. You will note its position by house, sign and the aspects this planet makes in that chart. You would also look at the Lord of the Year and its position and state. That is, you would not go in much details when you look at this chart, because we assume that you already done this by delineating the Solar Revolution and Annual Profections. This monthly chart only gives “triggers”. Although, one can not be surprised to see a pattern playing role in the monthly revolution as well. I try to stick with the “less is more” approach, and I would only notice that Mars as ruler of the year and of the month is in the monthly revolution 2nd, so I may expect some dissipation of substance [money] or something of that sort. If I look someone else’s chart, for that month I will note: “There is a risk for you to dissipate money in useless aims in this month”, than I will note that profected ascendant evolving 1° for 1 day in that month would make some square with the ruler of the 2nd and will note that those days are “days of particular crisis”.

That’s it! We do not want to go into details and mere guessing of little tiny details of the everyday life. Noting the general clime and some important issues is enough.

You would need to experiment with these revolutions and see how they work for you. Practice is everything. It is good to stick with certain approach for a while to see the results. Applying it on great deal of charts, will tell you whether the method is useful or useless. Nothing can be judged on one case alone.


I want to make a note of caution here. I do not claim that Persian Astrology lacks practicality, nor I claim that Renaissance astrology is superior in practice then any other astrology prior. I  fear not to be understood wrongly because in the past months I presented Abu Ma’shar’s approach in delineating Solar Revolutions and now suddenly I speak about Renaissance Astrology. I still use Abu Ma’shar’s approach in delineating Solar Revolutions and I am satisfied with the results I am getting from this great astrologer’s approach. My curiosity led me to yet another masters of this art, like that of Cardan and Gauricus, just to see that their practice is not much away from the Persian practice. It is true that they rarely used the principle of Sect in their delineations, but all in all, their practice is based in great deal of the astrology developed by Perso-Arabian astrologers, and these on Hellenistic Astrologers. I am always curious to see “how the master did it”. Abu Ma’shar didn’t gave actual analysis of a Solar Revolution chart in the translated material we have from his work. Though, I was lucky enough to recognize that some of the astrologers today use his methods with  very great skill, knowledge and precision. I am not one of those who will be a worshiper of one astrologer only. I bear the fruit from all the great ones and incorporate them in my astrological practice, as I am presenting it here. This is why my blog has many sub-sections of Hellenistic, Perso-Arabian, Medieval and Renaissance astrology. I am in love in all of them.


Lucas Gauricus – Three Annual Charts for Ferdinand I, transliterated and translated by Rumen K. Kolev, Varna 2012.

Pars Hyleg: What is the purpose of my life?


“Would you tell me, please, which way I ought to go from here?” asked Alice.
“That depends a good deal on where you want to get to,” said the Cheshire Cat.
“I don’t much care where —” said Alice.
“Then it doesn’t mat­ter which way you go,” said the Cheshire Cat.
“— so long as I get some­where,” Alice added as an explanation.

(Lewis Carol, Alice in Wonderland)

Do you have purpose in life? Or maybe you don’t know it yet? Can Astrology give an answer to this question? One of the most fundamental questions in life: “What is the meaning and purpose of life? What is my role in it? Where is my place in this world?”

This part is the root of the others and is taken by day or night from the degree of the conjunction or prevention which preceded the nativity or the question or the revolution, to the degree of the Moon, and this is then projected from the ascendant. And  this  part is called the radix vitae (root  of  life) because  it comprehends entirely the whole being (esse) of the native or querent or even the revolution, and if it is well disposed, it signifies universally the good “being” (esse) of the native and of other matters. However, if it is evilly disposed, it signifies the contrary of the aforesaid.

(Guido Bonatti – On Arabic Parts, Zoller trans., Ch 4)

Pars Hyleg, or part of hyleg is often associated with the highest spiritual purpose one has in life.
Many suggest to use Pars Hyleg in order to find where the Life Purpose of native lies. Client may come and ask: “What is the purpose of my life?” and you can look at this part, its position by sign, house, its dispositor/s, and answer to him: “Your life path is related to that and that subject or theme (something connected with creative arts if part is in 5th for example). You can also look the planet which aspects or conjunct the part in order to see which “color” or “blend” will they add, or how easy or with hardship this purpose can be achieved (malefics in bad aspect for example).

Pars Hyleg can be found by taking the distance from the degree of the prenatal new or full moon, up to the natal Moon’s degree, and project that from Ascendant.

The formula would look like this: ASC + Natal Moon – SAN (Syzygyium Ante Nativatem).

You don’t reverse this part; it is the same for day and night births.

Jon Bon Jovi

We all know who Jon Bon Jovi is.  I don’t feel the need to present his biography, and you can easily read that on Wikipedia or any other free internet source.
Some scatch of his life can be found on astro databank where I found his chart rated with highest AA:,_Jon


His Pars Hyleg is in 12 Pisces in exact conjunction with the Sun. Sun is naturally associated with fame, success, rank, glory and etc.  Sun also rules in 10th (Leo has a part of the 10th house division), so our first conclusion about this nativity would be that his purpose in life is to be famous through his career.  Sun is virtually non afflicted by malefic stars. It is peregrine but it is good that Venus gives him reception by exaltation. Venus also helps the lot because it is exalted ruler of Pisces, while the domicile lord Jupiter is in aversion to the part; exalted ruler – Venus, would take the significance of dispositor to the lot.

We can see that the lot is in Pisces, a sign which is of a dreamy and spiritual nature, watery and gives sensitivity. It is a sign which is related to music through Venus, Venus is its exalted ruler and this Venus is co-present with the Lot and Sun in this sign, and as Ascendant ruler highly accentuates the artesian nature of Jon.  This same Venus is aspecting the Midheaven in 3 degrees and in trigon relationship. We can see here very subtle relationship between his artesian nature, skills and praxis, career and fame.

Furthermore, the Sun is ruler of 11th and 7th by exaltation. We know that all that Jon made in his career, is due to his partnership (7th) with Richie Sambora (one of my favorite guitar players).
There are some astrologers who associate the 11th with the audience (through the opposition of 5th which is related to the performance). I’m not sure how justified this is from traditional astrology logic, but it makes sense to me, because one’s audience, one’s fans are his Group.
However, 7th is the house of Other People in general, so Sun has rulership here too.

His chart has some very good spear-bearers too. Moon as a Light of Sect is angular, though in bad zodiacal state has good spear-bearer – Venus (an evening rising) in her exaltation. She is just out of combustion and she assist the MC (has configuration with the MC, something which is very important).
Sun has Jupiter, Mercury and Saturn as a spear-bearers. Saturn in its own domicile, Mercury (morning star) in its own triplicity (1st triplitiy ruler of Air Signs by night), and Jupiter good enough with not being in debility or peregrine, having triplicity rulership in Aquarius. They are all in good oriental phases.

The whole chart and points in it are inter-related. You saw from the example above how one point in chart took us in examination of another point in relation to a particular theme in life.  We saw how Pars Hyleg ,can give a testimony of the purpose one has in life; in this case a famous artesian of high eminency and rank.

Paul Foster Case

Let’s look now at different nativity.
For those who are interested or have ever been interested into esoteric subjects, this name would sound familiar. Paul Foster Case was a well-known Hermeticist and Rosicrucian from the early 20th century.

His mother was a music teacher and Paul early in life was directed in that direction and indeed he was very talented musician. His father was a head of a library, so Paul was from his early days associated with many books too. He was especially interested in mystical books and had early records of mystical experiences.

Lee Moffitt explains his turning point in the “Paul Foster Case Timeline” brochure:

“1909-10- Case was approached on the streets of Chicago by a stranger who called him by name, and revealed Case’s “most secret thoughts, hopes, and activities”. The stranger told Case he came from the Master of Wisdom who was the teacher of them both. Case was at a crossroads. He could either continue with his musical career and have a life of relative ease and comfort, or dedicate himself to fully serve humanity and play a vital part in its evolution for this coming Aquarian Age. He was told that road would be hard, with much trials and sorrow. From that moment on, although Case went on to become an orchestral conductor, every spare moment went into his dedicated service.”

It is suspected that he is one of the authors of today well known book on modern hermetic “Kybalion”.  The occult order of B.O.T.A. today still exist and it is well known through the occult circles.
He was a teacher, a lecturer, writer and experimenter in many occult and mystical exercises, especially experimentation in relation with meditation and sound.

Here you can read more on his nativity and chart:,_Paul_Foster

Let’s look at his chart.


We can see that Pars Hyleg is at 3 degrees Gemini, in the 7th house. Ruler Mercury is on MC in its own sign and regards the part. So, from this first examination we can conclude that the purpose of this native is something related to speaking (Mercury and Gemini), also something related with sharing information (Gemini is centrifugal sign, spreading information in the environment).
He would take this as a career (Mercury on MC).

Furthermore, Saturn is co-present with the part in same sign; he will add some color into it.
Saturn is associate with discipline and hard work. In relation to Mercury would give a deep thinker and disciplined mind (Mercury from his own side, gives perfect reception to Saturn, in application).

But we cannot always and easily and naively judge the nativity by looking at one segment only, we must examine some other factors too. Looking at the ruler of his ascendant – Jupiter In 9th alongside Venus (the two benefics in 9th!) we can judge that the primary motivation, the quest for happiness in his life, he would seek in religion, spirituality, occult sciences (his special affinity was to Tarot, and was fascinated by Astrology too).

Abu Ali says that Jupiter in 9th gives:

“Good faith, true dreams and truthful interpretation of them”.

For Venus:

“Pleasure and good fortune through travel, religion, fear of God, true dreams and truthful interpretation of them”.
(Abu Ali – The Judgments of Nativities, Holden trans., p.73)

But the ruler of the pars hyleg – Mercury, has rulership in the 9th division by the virtue of Virgo having part of that division itself.

Moon in Pisces would give mystical blend to the whole character.

Sun as Light of the Sect being angular in masculine sign, and having some good spear-bearers would give distinguished nativity. Mercury angular configured with MC in its own sign and exaltation, being a morning star, is highly powerful Mercury. This Mercury also get out of the Sun’s beams (made an appearance) in 7 days prior the birth, distinguishing itself even more. Jupiter in its own triplicity and Saturn too, in trigonal relationship with Sun, direct in motion gives good spear-bearers too.

We can conclude that this nativity will be distinguished (deep) thinker, orator, and writer in the religious, spiritual, and mystical fields.


Pars Hyleg can be very valuable and useful tool for delineating native’s purpose in life. I hope that I was able to show you my approach in using it in the 2 nativities above. The holistic approach to the chart is needed. The whole chart operates as a whole and the parts are only parts of the whole. So, one must look at the big picture in every instance and to compare the parts with that big picture.


Guido Bonatti – On Arabic Parts, translated by Robert Zoller, 2000.

Abu Ali – The Judgments of Nativities, translated by James H. Holden, 1998.

Paul Foster Case Timeline – Editor Lee Moffitt, 9/26/97

Source for the picture of the “life of purpose”: florindasdesigns-flickr