The rules of course. I read the whole thread and I am applying the rules. According to the rules, first look to the Moon in a nocturnal chart. The Moon qualifies: it is above the horizon, 7th house, feminine quarter, aspected by two planets which have dignities in its degree, not USB. Perfect fit, right? But whoops, the Moon is peregrine! Presumably, Hyleg cannot be debilitated, so we must renounce the Moon. Back to the drawing board.
Next we look at the Sun. According to the rules the Sun qualifies: is under the horizon, 1st house, masculine quarter, in aspect with a planet which has dignity in its degree. Even if it had no aspect, Abu Ali states: "When the Sun is chosen as Hyleg and is in Aries or Leo and none of the rulers of the five dignities aspect it, it will be both Hyleg and Alcocoden." That's it then, yes? Well, maybe not. The Sun rules the 6th house, so according to some authors it cannot be Hyleg!
Is this true? I can't seem to find more information on it, so I am ASKING YOU.
For the moment, let's assume it is certain, so the Sun too drops out of the race.
According to Lilly, if neither the Sun nor Moon may be accepted as hyleg then in a nocturnal chart "consider the planet that has most essential dignities in these three places:
-The degree of the Moon in the nativity
-The place of the luminary (Sun or Moon) found above the earth in the Full Moon preceding the nativity
-The place of the Part of Fortune in the nativity
If this planet falls in an hylegiacal house accept it as hyleg.
If not, then use the ascendant if the birth was preceded by a New Moon.
If the birth was preceded by a Full Moon, take the Part of Fortune if it falls in an hylegiacal house; if not, use the ascendant."
If I understand what he is saying here then:
a) in the degree of the Moon most dignity goes to Venus, then Saturn. But Venus is combust, hyleg cannot be debilitated, so we forget about Venus.
b) no need to take the place of the luminary (Sun or Moon) found above the earth in the Full Moon preceding the nativity because the chart is conjunctional.
c) if we were to take the PoF hyleg would be Mercury. But Mercury is retro and USB, so it is debilitated and cannot be hyleg. Besides PoF does not fall into a hylegical house, so it has to be disregarded for that reason as well.
At this point we either accept Saturn as Hyleg, or we look at the Asc.
The planet with most dignity at the degree of the Asc. is convincingly Jupiter. But Jupiter is on Algol. Again we must remember the rule that states the hyleg cannot be hyleg if it is debilitated. Lilly does in fact take Algol in consideration, so Jupiter must be disqualified. Also all the other planets that have dignity in the degree of the Ascendant, as they are either combust or retro, and as such debilitated, hence unacceptable for hyleg.
If I got all this right (which I am not sure of for a single moment), then we are left with Saturn as hyleg. However, Saturn rules the 12th house so it too is unacceptable - according to the rules.
Even if we don't go through all this procedure, we can see right away that in this chart there is not a single planet except the Sun that is not debilitated one way or another. If we stick to the rule that hyleg cannot be debilitated in order to be hyleg we have nothing left to choose from! Except the Sun. But again - the Sun rules the 6th house, so can it even qualify?
At this point I am completely lost. So I am asking YOU to please explain.
Btw, english is not my native language so please forgive my mistakes and ignorance.