TROPICAL, VEDIC, SIDEREAL, 13-SIGN: which is best?
Comparison of systems; I use the IAU (International Astronomy Union) dates, because they are actual times of the Sun's travel. Everything else is a distortion of some kind. To the right are the stars central to each constellation.
Go with Sidereal astrology, or the "Fagan-Bradley" system. This is the most accurate Western type of astrology, since, unlike Tropical astrology, it factors in the precession of the equinoxes, which makes ALL tropical astrology charts false and phony. Tropical astrology--a modern joke, and the butt of ridicule--calculates using the Julian calendar and Ptolemy's ephemeris, which claimed the Sun revolved around the Earth. Ptolemy didn't include the 1-degree-every-75-years retro movement of the Earth's wobble and now tropical is a whole sign off.
Vedic astrology has traditionally been based on observation, and never took up with the tropical ephemeris, and stayed pure in that way. However, just because Vedic can't see them, the outer planets matter. I prefer the circle chart to the square chart, as being closer to the scientific view of the solar system, without an irrelevant god system Vedic insists we use.
Sidereal astrology will essentially DEDUCT about 28 degrees from your tropical sun's position, and all the planets and angles. Astro.com has a setting for Fagan Bradley in their special charts section, where there is a option for it--although Astro has seen fit to WARN you in red letters, away from using it!! WTF???
Sidereal astrology is better than Tropical because it's accurate, and better than Vedic because it includes everything and is non-sectarian. The only problem with Sidereal is, as with all western astrology, it uses the 12-base system and the 12 month Solar Gregorian calendar, developed by the church to authenticate its power. In reality the Zodiac has 13 signs, and always has. It was designed with 13 signs and the Greeks, and later the Romans (who stole everything from the Greeks) changed it to 12 in order to delete women from the Zodiac. They changed the gender of Ophiuchus, the 13th sign and a female, into a man. They also turned Aries the female warrior into the ram, Taurus the female acrobat into a bull, and Leo the female huntress into a lion.
The 13 sign system is a further refinement of scientific astrology--the astronomically correct system. Original astrology probably was devised 30,000 years ago by women shamans who based the calendar--and the Zodiac, on the 28 day 13 month lunar calendar. The 13-sign view of the ecliptic uses the actual, on-point degree of the sun's true time of travel across each of the 13 eponymous signs--including Ophiuchus, the sign of the (female) snake handler and shaman. In fact, the time the Sun spends in each of the constellations varies, over 45 days in Virgo, and only 7 in Scorpio. Ophiuchus is now back as the powerful Medusa, a female once again, the eagle to the larval scorpion, and unafraid of persecution.
So--scrap the tropical, pass over vedic, and go right to the source--13-sign, sidereal astrology. Go to my website for a complete explanation and to find out more about your true sign.