Graham wrote:
It's just that it's often interesting to consider tropical points (VP, solstice points) in a chart, and to do so you have to situate them, sidereally.
I haven't used the tropical points very often in personal work, but I do think they're important and should go into charts for research--sidereally placed, of course! I sometimes look at solstice and equinox charts, but set them within sidereal signs.
Th?r?se wrote:
At this time I assume that there is one point or star that marks the beginning of the sidereal zodiac. This would be in the general area of anti-Spica which is close to the key star of Arcturus. (I'm referring to Edgar Cayce's statements on Arcturus here.)
Graham replied:
I agree with John Addey ("Harmonics in Astrology") is one of the clear-headed and insightful astro books I've read), that a "fixed" point (e.g. star) cannot be the starting point for an equally-divided zodiac, which is by its nature a harmonic pattern - the stars are simple markers, approximate "aide-m?moires".
(Graham, you put the proper accents over my name!)
I've been a big fan of John Addey, but didn't remember his statement about stars. It's been a while since I read Addey's books. They're in my library. I've included his theories of harmonics in my article, "Signs of the Zodiac: What are they?"
http://www.snowcrest.net/sunrise/aharmsign.htm Yes, I believe that signs have to be looked at in terms of harmonics. These are also the basis for the Indian varga charts.
For siderealists, [Addey] says the most likely candidate is the galactic equator (its intersection with the ecliptic at the galactic nodes, in early Sag/Gem sidereal).
I absolutely agree with him, and after much experimenting and thinking about this, and a few other more subjective indicators, I've settled on putting the North Galactic Node at 6?40 Sg, i.e. in the very middle of the Indian nakshatra Mula ("the root")
I can't recall who they are, but one or more astrologers in India suggest the center of Mula for the key point in the sidereal zodiac. There have been articles published on that point.
(the equal, regularised harmonic nakshatra system of 27, ie 27 divisions of 13?20).
I'm not sure how this fits into what you are saying...?
The great circle in question, manifested by the Milky Way, also happens to be visible, unlike the equinox great circle of tropical, which is manifested by nothing at all in space, only in time, and the MW is in fact the most striking feature to be seen, in a clear sky. Being an aggregate of all the fixed stars in our galaxy, it is also much more stable than any given fixed star. Scientists have calculated and measured (visually and using radio signals) its location as being at 270? (0? Cap tropical) to be somewhre between May and November 1998 (a quick google search will confirm this),
This doesn't mean that I think Sagittarius is the first sign, just that the NGN is a sort of anchor. We shouldn't have to use ayanamsa, we imply that it's we who are "off-setting" rather than the tropicalists, and indeed some Indian astronomers have suggested a galactic-node based coordinate system to replace the tropical one. But we can just this data to work out an ayanamsa to enter into our programs, and I'm not the only one, I think, to use a offset of 23?20 in October 1997. it works out at an ayanmasa with about 24' less offset than Krishnamurti, 30' less than Lahiri, halfway between Lahiri and Bhasin, much more than Fagan and much less than Raman, and very close indeed to Babylon Kugler III. But all this is getting very off topic, sorry.
Actually this is all very interesting, and in a way does relate to signs of the zodiac. The problem with an initial start point to a sidereal zodiac, at least as it's used in India, is that the varga or sub-charts have to work out. It's just not the basic 12 sign zodiac, but those sub-charts and also the 27 lunar mansions. It all has to synchronize together. And that is a LOT of research! I know, for example that the Krishnamurti navamsa chart is accurate, so it would be a whole new research project to test another sidereal zero Aries point.
I'm tired this evening, so am not answering in as much detail as I'd like.