Ayanamsa Revati Paksha for Vedic Astrology 1 by voltecerdi Surya Siddhanta 1.27 states that the starting point of the sidereal zodiac is at the end of the constellation Revati. Therefore, the authentic ayanamsa is Surya Siddhanta Revati. Revati Paksha was used in some traditional Panchangas and was the main ayanamsa in Jyotish books published before the 1950s. According to "Ayanamsas — A Statistical Study. Buz Overbeck. 2007" - only ayanamsas based on the star Revati (Sassanian, Hipparchos, Ushashashi) showed good results. Today, modern scientific calculations (Drik Ganita) is commonly used to cast Indian horoscopes, so True Revati ayanamsa must be applied. Quote Mon Aug 22, 2022 9:41 am
2 by voltecerdi Martin Gansten wrote:Would you perhaps like to offer some examples that, in your opinion, demonstrate the superiority of your preferred precessional value?I rely on statistical research - https://shenjiva.com/Vedic/AyanStat.pdf Quote Tue Aug 23, 2022 4:52 pm
3 by Martin Gansten voltecerdi wrote:I rely on statistical research - https://shenjiva.com/Vedic/AyanStat.pdf I took the trouble of glancing through the thirty-odd pages of that paper but am still in the dark as to precisely what astrological factors were considered. I did, however, note the author's repeated statements to the effect that his research did not indicate a single 'true' ayan??ṃśa. This seems to contrast with your statement that you base your choice of ayan??ṃśa on the statistics in question. https://astrology.martingansten.com/ Quote Tue Aug 23, 2022 8:12 pm
4 by voltecerdi No one here promised you "true ayanamsa". Nobody knows it, due to the fact that the speed of precession is not constant. Otherwise it would be a worldwide sensation. This test simply revealed the most normal ayanamsas available today. All the most normal ayanamsas turned out to be associated with the star Revati. If you have some other open statistical study, with opposite results, then this can be discussed, but for now there is nothing to talk about. Quote Tue Aug 23, 2022 8:57 pm
5 by Martin Gansten On the contrary, there is a great deal to talk about, the first question being what astrological assumptions were being tested. The paper is far from clear on that. https://astrology.martingansten.com/ Quote Wed Aug 24, 2022 6:53 am
6 by carriere.francois voltecerdi, If I may... About Surya Siddhanta... Although it assumes Revati (zeta Piscium) as fiduciary star, if one reads the chapter on the lunar mansions (the nakshatras), one will discover that although most fiduciary stars fit zeta Piscium, when it comes to Spica, it is well placed in the midlle of its nakshatra (Çitrâ), at 180°. Clearly, the astronomical treaty was edited to fit the practice of the astrologers, then. Furthermore, when Rev. E. Burgess follow the rules to cast an example chart (1st jan, 1860, if I remember correctly), if fits Lahiri. Conclusion: it is not possible to assume the standard was always Revati... However, I do agree some astrologers continued to use Revati as fiducial star (with specific panchangs). Now, there are other traditional ayanamshas. For instance, KAS (or Krushna's Ashtakavarga System) assumes Spica to be around 180°50 (+/- few minutes), which was Varaha Mihira position of the star... Krushna's value for J2000 is 22:58:18 (no nutation applied, he just try to reproduce his Guru's values)... As I always say: use the parameters the astrological system needs... Regards, François CARRIÈRE Quote Wed Sep 21, 2022 8:14 pm
Re: 7 by zastreluga carriere.francois wrote: Wed Sep 21, 2022 8:14 pmFurthermore, when Rev. E. Burgess follow the rules to cast an example chart (1st jan, 1860, if I remember correctly), if fits Lahiri. Conclusion: it is not possible to assume the standard was always Revati... Ayanamsha Lahiri has no historical basis at all. And in Surya Siddhanta there are no direct indications of her, but in Revati there are. Another question is why exactly is ayanamsha given in Surya Siddhanta? There is an opinion that ayanamsha is needed only for nakshatras, because only they must be sidereal, and the zodiac must remain a tropical chakra. For example, Vic DiCara thinks so. But this is contrary to the Puranas, which state that the zodiac and nakshatras are one chakra and not two. However, I do agree some astrologers continued to use Revati as fiducial star (with specific panchangs).Not just some, but two of the most traditional and most ancient temple Panchangs. In Tamil Nadu and Kerala i.e. in two entire states of India, which suffered less than others from Muslim invasions and occupations. Ayanamsha in Vakya Panchang is almost identical to Revati. And all Naadi astrologers in these states follow it, and Naadi astrology is the main private astrology there. Now, there are other traditional ayanamshas. For instance, KAS (or Krushna's Ashtakavarga System) assumes Spica to be around 180°50 (+/- few minutes), which was Varaha Mihira position of the star... Krushna's value for J2000 is 22:58:18 (no nutation applied, he just try to reproduce his Guru's values)...Varahamihira, like Aryabhata, used Revati Paksha https://archive.org/details/brihatsamhi ... 4/mode/1up Glad to welcome everyone. Quote Sat Dec 23, 2023 12:06 am