Posted: Sat Nov 10, 2012 6:53 pm
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Skyscript Astrology Forum
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No, Dieter, I am not; but I haven't the time or the inclination to attempt to convince you, particularly as you have a very definite agenda which you seem determined to defend against nearly 1800 years' worth of tradition. I don't care much for arguments from authority, but I will take the liberty of pointing out that I have studied Sanskrit for 30 years (and taught it at two major universities) and Indian astrology for 23. As a result, I do know a thing or two about Sanskrit syntax, and also about the difference between the Indian categories of astronomy (ga?ita-jyoti?a) and astrology (phalita-jyoti?a).dieterkoch wrote:I am afraid, you are wrong.

You apparently refer to Yavanajataka 79.1, which I quoted in my last post.varuna2 wrote: If calendar making and astrology are not separated then we have a huge problem when using a sidereal zodiac and a solar year.
Does not "observed" imply the planets amongst the stars? Is it possible to "observe" Tropical placements of planets? I thought the Tropical placements were dependent upon math?
"The Indians"? Varuna, ancient India had different authors and traditions with different ideas. The ideas of the Brhatsamhita disagree with those of the Yavanajataka.varuna2 wrote: The Brhatsamhita 3.1 cited by you, refutes the Tropicalist position that the Indians were using a Tropical astrology.
It depends on what kind of ephemeris one uses. Ancient Indian astrologers did not need the tropical year or zodiac for sidereal planetary positions as long as they used sidereal ephemerides (e.g. based on the Suryasiddhanta). An ayanamsha would only have been required in order to calculate *tropical* ephemerides.I do not know how to construct astrology charts, but I thought the Solar Year or Tropical Zodiac was necessary for getting information on calculating certain chart placements? Regardless of which zodiac one uses, does not one need to calculate the Tropical Zodiac, in order to get certain data for an astrology chart?
But even today they celebrate uttarayana (the wintersolstice) on 14/15 January. Panchanga almanacs mostly ignore the equinoxes and solstices.I do know the Indians were very concerned with the Solar Cycle for timing of rituals. So that in itself is enough reason (if I am wrong about the need for calculating Tropical positions even if using Sidereal) for them to calculate the "Tropical" or Solar Year.
You refer to Tetrabiblos 1.17, right? This is strange indeed. Ptolemy says that Leo and Cancer were the most northern zodiac signs. But this is in contradiction with his assumption that the solstices are located at the beginning of Cancer and Capricorn. I do not have a simple explanation for this his "bloomer?. I don?t believe that Ptolemy had access to such old sources.I suspect that Ptolemy had access to the Solar Cycle data from about 1900 bc which stated that the summer solstice was at 0 Leo, and I would call this Ptolemy's fundamental error,

Just to clarify I am not the moderator here Martin Gansten is. And my comment was not a personalised attack on anyone. I just wish we could all discuss the sources in a more open minded and respectful manner despite our differences.Our Moderator is alas somewhat off the mark in his expressed perception of yours truly and in my humble opinion would better abstain from personal remarks about his fellow forum members.
My agenda here is the truth about the Yavanajataka, honestly. Independently of the 1800 years of tradition that followed and that did not exist at that time. I find it pity that you are not willing to defend your understanding of the text.Martin Gansten wrote: I haven't the time or the inclination to attempt to convince you, particularly as you have a very definite agenda which you seem determined to defend against nearly 1800 years' worth of tradition.
I knew that when I entered the discussion.
I don't care much for arguments from authority, but I will take the liberty of pointing out that I have studied Sanskrit for 30 years (and taught it at two major universities) and Indian astrology for 23. As a result, I do know a thing or two about Sanskrit syntax, and also about the difference between the Indian categories of astronomy (ga?ita-jyoti?a) and astrology (phalita-jyoti?a).
I am afraid maths is not my strong suit. However, might this give us any clues to what zodiac is involved? Obviously, in the tropical zodiac we have signs of short, intermediate and long rising periods. I am genuinely unclear what is involved in calculating the rising times of sidereal equal sized signs. Would the same terminology make sense there too?68. The measure of the rising-times of the first and last signs is
demonstrated with certainty to be two muhiirtas each; know that the
measure of the rising-times (of the rest of the signs) in the two halves of
the zodiac, taken (respectively) in direct and reverse order, is (two
muhurtas) with a fifth (of that measure) added (successively to each).
69. Knowing that the signs are thus measured as being short, medium, or
long, they consider the lengths of journeys as being similar to the
divisions of the zodiac (and the limbs of the zodiacal man)
Pingree's TranslationMark wrote:I have been looking at the text of the The Yavanajataka of Sphujidhvaja myself. Its a fascinating text for many reasons.
One section that intrigues me is in Chapter 1 68-69 discussing the rising times of signs.
I am afraid maths is not my strong suit. However, might this give us any clues to what zodiac is involved? Obviously, in the tropical zodiac we have signs of short, intermediate and long rising periods. I am genuinely unclear what is involved in calculating the rising times of sidereal equal sized signs. Would the same terminology make sense there too?68. The measure of the rising-times of the first and last signs is
demonstrated with certainty to be two muhiirtas each; know that the
measure of the rising-times (of the rest of the signs) in the two halves of
the zodiac, taken (respectively) in direct and reverse order, is (two
muhurtas) with a fifth (of that measure) added (successively to each).
69. Knowing that the signs are thus measured as being short, medium, or
long, they consider the lengths of journeys as being similar to the
divisions of the zodiac (and the limbs of the zodiacal man)
Incidentally, I have only managed to download a version without David Pingree's commentary. Has anyone read his commentary? What view did Pingree take on the text and the type of zodiac involved?
Mark