Roy Kirkland wrote:
"I don't believe it's necessary to think in terms of sidereal and tropical regarding the Babylonian system, because I am not that sure that they used a sign/ruler zodiac anyway."
I don't believe there's any evidence that the Babylonians had a sign/ruler system, but it's a fact that the early system of 18 constellations in "the path of the moon" evolved into a 30 degree 12 sign sidereally based zodiac. The question is wether Hellenistic astrologers adopted the star based zodiac as it was or began to think in tropical terms. That is the big question as I understand it at present. Here's a pertinent summary quote from Rochberg--(She lists the tablets and planetary positions in support of this summary):
"By the early fourth century, all the references in astronomical texts to positions of planets on the ecliptic were made either by the Normal Star system or the zodiac [of 30 degree signs discussed earlier], and the zodiacal constellations, which originally constituted the "stars in the path of the moon," were no longer of any relevance." (The Heavenly Writing, p. 131)
RK: Take a look at Gavin White's book 'Babylonian Star Lore' and let me know what you think.
TH: That's one book that hasn't made its way into my library. I've relied on Rochberg and Pingree.
RK: Nevertheless, I have, for a long time, considered precession correction...
TH: There's a powerful mathematical argument for precession correction (or sidereal charts) in the use of precise transits to natal charts (such as Obama's and Biden's birth charts at the moment of the inauguration--12:00 noon) and solar returns, but it's quite possible--even probable--that the Hellenistic time lord systems work best, or even work only in the tropical zodiac. I haven't yet experimented with the time lord systems.
RK: I do not discount the viability of the sidereal zodiac, nor the techniques used by either eastern or western siderealists. I use them and understand them myself. I believe that these are different systems, different schemes, developed with an internal coherence of their own..."
TH: It's the internal coherence of both systems that we'll eventually be testing. Perhaps Robert Schmidt or someone else might want to elaborate on some of your other points. I have yet to form an opinion on some of the factors you mentioned.
RK: Do Narayana Dasa in the Tropical zodiac - I think you'll be surprised.
TH: Do you mean the Vimshottari dasa system applied to the tropical zodiac? (This would make an interesting discussion on Sam Geppi's new forum if you're interested.)
Therese Hamilton
