Works containing the degrees of each Zodiac Sign

[Jacob Carolus]

Why are these manuscripts not well understood? It seems as if they were not encoded to the same level of Voynich.
In theory we should be able to read them? Or read any one of the many similar manuscripts, that have been written in Latin or such. When/ where over the hundreds of years, someone should have been able to make sense of most of it - and by extension - others like it?

[denty]

Why are these manuscripts not well understood? It seems as if they were not encoded to the same level of Voynich.
In theory we should be able to read them? Or read any one of the many similar manuscripts, that have been written in Latin or such. When/ where over the hundreds of years, someone should have been able to make sense of most of it - and by extension - others like it?

I believe the squares are horoscopes, I only know this because I was looking at Oresme versions and one made for Charles V had his and his children's horoscopes in the back of the manuscript and they have the same squares and triangles, although more royally done. 

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[MarcoP]

This You are not allowed to view links. Register or Login to view. discusses Paranatellonta and some aspects of Astrolabium Planum.

The squares are indeed (partial) horoscopes, showing the positions of the twelve houses, but of course not showing the planets, whose position varies independently of the zodiac signs.

The positions of the triangles correspond to the apparent movement of the sun. The middle triangle of the left column (Scorpio, in the example below) is the ascendant. The sun appears to move clockwise, so the middle triangle of the top row (Leo in the example) is at the azimuth and so on. See You are not allowed to view links. Register or Login to view..

For each degree of the zodiac, Astrolabium Planum describes the personality of people who were born when that particular degree was at the ascendant (i.e. was rising above the horizon).

E.g. for the first two degrees of Scorpio:

1. Fur erit et nequam (He will be a thief and good-for-nothing)
2. Homo fortis erit et stabilis (He will be a brave and steadfast man)

   

[eggyk]

This manuscript seems to contain tables with groups of 30 horoscopes, similar to these other works.

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1480-1499AD, Netherlands

The first two squares of aries line up almost perfectly (some numbers are 1 off)
   
   

If this is the same content, this at least shows that the layout of the information could change slightly, with 1 zodiac sign per page.

[rikforto]

I am not sure of the details of the computations here, though it is probably explained in each manuscript, but you can get slightly different degrees for each house by varying the location of the horoscope, which fundamental plane you are projecting onto the ecliptic from, and whether you are using temporal or spatial definitions to compute that projection. But in principle, each house should have a degree that is advanced by ~30 degrees from the one before, and we see that here. The variation is important to track because if a luminary falls near one of these cusps, the exact definition can place it in one house or the other. So these aren't quite the same astrological tradition