Jorge_Stolfi > 18-04-2026, 02:28 AM
(17-04-2026, 09:52 PM)Rafal Wrote: You are not allowed to view links. Register or Login to view.Baby Moses taken out of the water by Pharaoh's daughter in Egypt?
rikforto > 18-04-2026, 03:28 AM
(17-04-2026, 09:32 PM)Jorge_Stolfi Wrote: You are not allowed to view links. Register or Login to view.Most elements of the drawings are clearly just decoration. Even if the hairdos and poses of the Zodiac nymphs are encoding some part of the contents, their "European" appearance is certainly not determined by the encoding. Those are not portraits of specific people. The Artist could have used winged monkeys, trees, fishes, Inuits in winter clothing with Bantu spears, ... The choice or European-looking ladies with light hair was a decision by the Artist (with or without input from the Author) determined only by the intention of making those diagrams "look nice".
(17-04-2026, 09:32 PM)Jorge_Stolfi Wrote: You are not allowed to view links. Register or Login to view.The Zodiac diagrams themselves are rather unusual for European astrology, because each sign i divided into 30 degrees of arc, 360 in total -- instead of 30/31 days, 365 in total. That conception was not unknown in Europe; but what is (AFAIK) quite unusual is the division of two signs into halves of 15 degrees. On the other hand, both of those features are familiar in Chinese astrology.
All the best, --stolfi
Jorge_Stolfi > 18-04-2026, 07:18 AM
(18-04-2026, 03:28 AM)rikforto Wrote: You are not allowed to view links. Register or Login to view.(17-04-2026, 09:32 PM)Jorge_Stolfi Wrote: You are not allowed to view links. Register or Login to view.Most elements of the drawings are clearly just decoration. The choice or European-looking ladies with light hair was a decision by the Artist (with or without input from the Author) determined only by the intention of making those diagrams "look nice".
If you would be kind enough to share your source on the artist's intentions, I will be happy to concede the point. I was not aware anything of this nature was in the public record.
Quote:The 360 degree division of the ecliptic was the standard way to do Astronomy in Greece two centuries before the birth of Christ, and proved so influential it is still the main way astronomy is conducted in the modern world. The Zodiac was perfectly commensurate with this, with each sign being assigned, definitionally, 30 degrees well before it came to Europe.
Quote:By contrast, the 360 degree division was not adopted in China until later, about two centuries after the Voynich was supposed to be written. What was current was You are not allowed to view links. Register or Login to view.. An arc did not have 360 degrees in China in 1420.
Quote:Pisces only has 29 nymphs
rikforto > 18-04-2026, 10:52 AM
rikforto > 20-04-2026, 02:54 PM
(17-04-2026, 09:32 PM)Jorge_Stolfi Wrote: You are not allowed to view links. Register or Login to view.The Zodiac diagrams themselves are rather unusual for European astrology, because each sign i divided into 30 degrees of arc, 360 in total -- instead of 30/31 days, 365 in total. That conception was not unknown in Europe; but what is (AFAIK) quite unusual is the division of two signs into halves of 15 degrees. On the other hand, both of those features are familiar in Chinese astrology.
Jorge_Stolfi > 22-04-2026, 03:37 PM
(20-04-2026, 02:54 PM)rikforto Wrote: You are not allowed to view links. Register or Login to view. You are not allowed to view links. Register or Login to view. is that the longest entries are the two that are split, coming in more than twice as long as the more "typical" entry. If we assume a meaningful text, as we both do, and that the text is the only source of meaning, as you do, this is more conservatively read as an indication that the scribe duplicated Zodiacs so as to have enough space to contain the longer entries.
Quote:In fact, European astrology does have a dedicated "half sign", and it is far from obscure---it is the You are not allowed to view links. Register or Login to view.. Sometimes the signs were fitted to the unequal hour, but the equal hour is defined such that each one passes through 15 degrees and divides each sign of the zodiac.
Quote:The divided signs are odd, granted, but we can place their 30 degree totals with stars and labels in a European context.
Quote:As mentioned, a circle was divided into 365.25 degrees
Quote:What, in a 15th Century Chinese context, do we suppose these labels on these degrees represent?
Quote:the practice of associating stars with the degrees of the signs does not need a foreign explanation
rikforto > 22-04-2026, 06:43 PM
(22-04-2026, 03:37 PM)Jorge_Stolfi Wrote: You are not allowed to view links. Register or Login to view.Even if that is correct for Chinese astronomy in general (and one must be wary of possible of undue generalizations by scholars), the "solar terms" were definitely a division of the Ecliptic (or of the year) into 360 parts...
Jorge_Stolfi > 22-04-2026, 10:32 PM
(22-04-2026, 06:43 PM)rikforto Wrote: You are not allowed to view links. Register or Login to view.If you divide a circle into 24 arcs, you will have 24 parts. As there are only 24 solar terms, they could only divide the ecliptic into 24 such arcs.
rikforto > 25-04-2026, 03:34 PM
(22-04-2026, 10:32 PM)Jorge_Stolfi Wrote: You are not allowed to view links. Register or Login to view.A small point: it seems that up to the 1600s the solar terms were 24 divisions of the year into equal parts. That is, a solar term was 365.25.../24 days. The defintion was changed to be a division of the Ecliptic itself into 24 equal parts in the 1600s. This makes a small difference: because the orbit of the Earth is not circular, during each 1/24 of the year the sun seems to travel sometimes a bit more, sometime less than 1/24 of the Ecliptic. But those variations are small and the two divisions agree year over year. And note that neither definition depends on what was the unit of angle at the time.If this is the case, and you do appear to be correct, this means that these do not define geometries and could not be used to find objects. If I'm understanding You are not allowed to view links. Register or Login to view. correctly, it was not used to actually find the sun, but rather to model it, and that's the thing it conceptually finds! That essentially precludes the use you imagine here prior to the Jesuits in the 1620s.
Quote:In specifying RA, the astronomers of China did not employ a single coordinate origin (such as the vernal equinox). Instead, they measured the positions of celestial bodies eastward from a series of twenty-eight unequally spaced local meridians. These meridians were defined by selected determinative stars (juxing), one in each of the lunar lodges; coordinates measured relative to them were termed ruxiudu (degrees within a lodge). The term xiu came to imply both the asterism itself and the zone of RA it covered. As in the case of north polar distance, RA was expressed in du. The equatorial extension of a particular xiu (the angular separation between the standard meridian of that lodge and the adjacent reference meridian of the next xiu to the east) could range from as small as one or two degrees to some thirty-three degrees.Chinese astronomers did not find objects by counting degrees around a great circle. That is, this is not "Chinese" practice:
(22-04-2026, 10:32 PM)Jorge_Stolfi Wrote: You are not allowed to view links. Register or Login to view.Maybe the labels are star names, and the label of each of those 1-degree arcs is the name of the star that lies on that meridian, or between two meridians.
(22-04-2026, 03:37 PM)Jorge_Stolfi Wrote: You are not allowed to view links. Register or Login to view.But then for some reason the Author decided to switch to 30-degree diagrams. Maybe he found that he did not have enough vellum for 24 diagrams. Maybe he wanted to make his Zodiac more compatible with the Western ones. Anyway, he told the Scribe to use that format from then on, using three bands of nymphs instead of two. And he had him go back and do Pisces that way -- before Aries, instead of at the end of the section. (Note that the Chinese 24x15 degree thing starts in February.)(emphasis mine) This is only true after the Gregorian reforms. For most of the middle ages---I did not care to figure out the exact cutoff, but it is going to be well before the 1420s---the procession of the equinoxes had shifted Lichun into January on the Julian calendar. Unless our scribe is in the missionary period, then the start of the solar term cycle would have been approximately January 25th, give or take. This reading is only possible after Inter gravissimus in 1582.
(22-04-2026, 10:32 PM)Jorge_Stolfi Wrote: You are not allowed to view links. Register or Login to view.Is there a book from that time that does this -- depicts each sign as a circle divided into 30 sectors (rather than mixed 30/31 days) ?I'll expand, though you are active on other threads where this has come up recently. You are not allowed to view links. Register or Login to view. is the standard identification here. The paranatellonta tradition is a way to get an arbitrary sign first, though not in the presentation style we see in the VMS. It associates degrees with labels, and those labels overwhelmingly have etymologies in stars and constellations. Fitting it to the VMS is not unproblematic, as we do not seem to have a direct source for the diagrams in there (presuming, not trivially, such a thing ever existed) and the Voynichese labels are awfully short at face. Those problems, however, are not the same thing as these identifications not existing.
rikforto > 25-04-2026, 05:56 PM
Quote:In 525 B.C. another comet was reported, this time at Dachen. Later known as Dahuo, Dachen was one of the ci, or "jupiter stations." Here we have one of the earliest references in Chinese history to these twelve equal divisions of the sky (and later of the celestial equator) based on the motion of jupiter, or rather its supposed invisible counterrotating correlative planet Taisu.3o Since Jupiter completes a full circuit of the sky in almost twelve years, the sun in its annual course would spend a month in each division. Apart from the number of stations, the ci (which were still important in Chinese astrology in relatively recent times) had nothing in common with the signs of the Western zodiac. The latter divisions are based on the ecliptic rather than the celestial equator. In Chinese astronomy and astrology the zodiac has never held a special place except in popular thinking.You have to look at how he is using "popular" elsewhere, which I don't think is the best word choice, to really see the sense here, but he means in opposition to the kind of astronomical practice that found stars and recorded them.