Differences Between Jyotish and Western Astrology

The most important thing to understand about any branch of astrology is that the same planets and luminaries are used everywhere. Differences arise only in the methods used to analyze their positions. Water boils at 100 degrees Celsius, but the same water also boils at 212 degrees Fahrenheit. The water is the same, and so is the boiling process, but if something needs to be calculated, one must first decide on a scale. For astrologers, the choice of an "astrological scale" is just as important; for those asking questions, it does not matter which scale is used. The main thing is that the interpretation suits the person.

The first difference between Western and Indian astrology is what to use as the starting point, the zero point, in a natal chart. Western astrology ties it to the spring equinox, which occurs between March 19 and 21. It varies from year to year, but in Western astrology it is customary to begin the zodiac on March 21. This is the zero point, also called zero degrees of Aries.

In Indian astrology, Jyotish, the zero point of the constellation Aries lies opposite the star Spica in the constellation Virgo, or near the star Zeta in the constellation Pisces, which is called Revati.

This already seems complicated and confusing: why speak of Aries in Indian astrology if the point is located in the constellation Pisces?

It is because Western astrology builds its scale using only the position of the Sun, while Indian astrology uses a solar-lunar scale. In addition to tracking the Sun's position, Indian astrologers also track the Moon's position. Besides the solar zodiac, Indian astrology, Jyotish, also has a lunar zodiac: the so-called lunar mansions, or nakshatras.

This brings the first benefit for the person asking: in Western astrology, it is not possible to analyze a chart without an exact birth time, whereas in Indian astrology a natal chart can be constructed even without an exact birth time, starting from the Moon's position: Chandra Lagna. In that case, forecasts lose some accuracy, but they are possible in principle; in Western astrology, they are not.

The second fundamental difference between the two schools is house division: the way the sky is divided into 12 sectors from the zero point. Until approximately the second or third century CE, this difference did not exist, and both schools used the same division of the sky into 12 equal parts from the zero point of Aries. Before Hipparchus discovered the effect of precession, the slow wobble of the Earth's axis itself, no one was concerned with this phenomenon. But in the Ptolemaic era, astrologers decided to account for this wobble of the Earth's axis and began inventing new ways to divide the sky into 12 sectors. Different approaches to analyzing the wobble of that axis gave rise to many house systems: Equal Houses, Porphyry, Alcabitius, Sripati, Campanus, Regiomontanus, Placidus, Morinus, Koch, and Topocentric.

Usually, the person asking is not told which house system a Western astrologer uses. These systems are chosen according to personal preference, and there are no clear criteria for which system of dividing the sky to use. The difficulty of this choice is simply not shown.

The next major difference between the Western and Indian systems is that the Western system uses exact angles between planets and luminaries, called aspects. Here is the list of these angles between planets: conjunction - 0°, semisextile - 30°, semisquare - 45°, sextile - 60°, quintile - 72°, square - 90°, trine - 120°, sesquiquadrate - 135°, biquintile - 144°, quincunx - 150°, opposition - 180°.

In Indian astrology, aspects are considered not between planets but between the houses in which particular planets are located. Here is the list: all planets - the 7th aspect (180°); Mars additionally - the 4th and 8th (90° and 210°); Jupiter - the 5th and 9th (120° and 240°); Saturn - the 3rd and 10th (60° and 270°).

These three main differences influenced the methods used to analyze a natal chart, and the two schools came to differ greatly from one another. The methods of one school are now inapplicable to those of the other.

In 1781, when Uranus was discovered, the differences grew because newly discovered planets began to be used alongside the seven planets visible to the naked eye. Perhaps Western astrologers from the eighteenth century onward decided to keep pace with modern science and began using everything astronomers found in the solar system. Here are the additional physical objects used today: Uranus, Neptune, Pluto, Ceres, Pallas, Juno, Vesta, Chiron, Eris, Sedna, Haumea, Makemake, Pholus, Nessus.

Besides real objects in the solar system, astrologers of both schools also use fictitious points. Such points help with analysis, but they do not independently influence the birth chart and are not used in calculations. Both schools have long used the points where lunar and solar eclipses occur: Rahu and Ketu. Beyond those, each school uses its own fictitious points. Western astrology uses: Black Moon (Lilith), Priapus, White Moon (Selena), Vertex, Antivertex, East Point, Part of Fortune, Part of Spirit, other Arabic Parts, and midpoints.

In Jyotish: Gulika, Mandi, Kala, Mrityu, Ardhaprahara, Yamagantaka, Dhuma, Vyatipata, Parivesha, Indrachapa, Upaketu.

Although Western astrology has more "participants" in the birth chart, it is limited to just 12 zodiac signs. Indian astrology did not stop at dividing the sky into 12 parts and created additional divisions of the sky: Rashi (D1) - 12 parts, Hora (D2) - 24 parts, Nakshatras - 27 parts, Drekkana (D3) - 36 parts, Chaturthamsa (D4) - 48 parts, Saptamsa (D7) - 84 parts, Navamsa (D9) - 108 parts, Dasamsa (D10) - 120 parts, Dwadashamsa (D12) - 144 parts, Shodashamsa (D16) - 192 parts, Vimshamsa (D20) - 240 parts, Chaturvimshamsa (D24) - 288 parts, Saptavimshamsa (D27) - 324 parts, Trimshamsa (D30) - 360 parts, Khavedamsa (D40) - 480 parts, Akshavedamsa (D45) - 540 parts, Shashtiamsa (D60) - 720 parts.

To give some sense of the difference, I use a rough mathematical calculation in which each object can occupy only one sector of the sky once. This is not true, but it gives an approximate understanding of the number of possibilities, and the more possibilities there are, the more detail there is. Thus, for Western astrology, the number came to 12²⁹ possibilities, and for Jyotish, 5.046 × 10¹⁷³. That is approximately 2.55 × 10¹⁴² times more.

Intuitively it seems that, because Western astrology has more objects, it must provide more detail. In practice, however, the Jyotish system can accommodate a number of Western astrological possibilities equal to 255 followed by 140 zeros.

If we assess methods for analyzing a planet's strength, Western astrology has 10-12 main methods, while Jyotish has 18. If all factors of analysis are taken into account, Western astrology has 15-20 and Jyotish 25-30.

If we consider predictive methods, Jyotish also wins in terms of quantity:

Western Astrology: Main Methods Used

Transits
Secondary progressions
Tertiary progressions
Minor progressions
Primary directions
Solar arc directions
Symbolic directions: degree-for-a-year, Naibod's arc, and other arcs
Converse progressions and directions
Solar return - solar chart
Lunar return - lunar chart
Returns of Saturn, Jupiter, and other planets
Annual and monthly profections
Zodiacal releasing
Firdaria
Decennials
Distribution through the terms - circumambulations/distributions
Synodic planetary cycles
Lunations and eclipses
Planetary ingresses, especially the Sun's cardinal ingresses
Age harmonics
Progressed lunations
Transits and progressions to midpoints
Horary astrology
Electional astrology
Mundane cycles and national charts

Jyotish: Main Methods Used

Gochara - transits
Double transit of Saturn and Jupiter
Sade Sati
Dhaiya and Kantaka Shani
Vedha and Viparita Vedha of transits
Tara Bala and transits relative to Janma Nakshatra
Chandra Bala
Ashtakavarga: Bhinna-, Sarva-, and Prastarashtakavarga
Vimshottari Dasha
Ashtottari Dasha
Yogini Dasha
Kalachakra Dasha
Other conditional nakshatra dashas
Jaimini Chara Dasha
Narayana Dasha
Sthira Dasha
Shula Dasha
Manduka Dasha
Other rashi dashas
Varshaphala - solar return
Muntha
Varshesha - ruler of the year
Mudda Dasha
Patyayini Dasha
Tajika yogas and annual sahams
Tithi Pravesha - lunar-phase return
Dasha Pravesha - chart for the start of a period
Forecasting with divisional charts: D9, D10, D7, and other vargas
Sudarshana Chakra
Sarvatobhadra Chakra
Kota Chakra
Bhrigu Chakra Paddhati
Jaimini: karakas, arudhas, and rashi drishti
Nadi methods, including Bhrigu Nandi Nadi
Krishnamurti Paddhati - KP: sublords and ruling planets
Prashna - horary astrology
Muhurta - choosing a time
Panchang as a system of daily forecasting
Eclipses, paksha kundali, and solar ingresses
Mundane chakras and charts of the year

In addition to everything said above, a horoscope constructed according to the principles of Western astrology cannot predict events, because it takes into account only the position of the Sun, whereas a lagnoscope makes it possible to construct a forecast without much difficulty from the position of the Sun and its constant astrological companions, Mercury and Venus. This is described in the book "Astrology Without an Astrologer." That is because the lagnoscope uses a calculated Lagna based on the birth time or, if that is unknown, on the Moon's position.

The popularity of Western astrology is explained by its inheritance of a materialistic approach to interpretation and its exclusion of the inner perception of reality. This is closer and more understandable to a Western person.

Indian astrology, Jyotish, differs not only in its details and set of mathematical methods. It also incorporates general principles of Vedic knowledge, which includes yoga, Ayurveda, Vastu, and many others. For Indian astrologers, a planet is not only a physical object but also a capturer of the human mind's attention. That is why planets in Jyotish are called grahas, not planets. The Indian approach to analyzing the time of human life rests on the idea of panpsychism: that all beings in the universe are within the meditation of an enormously vast intelligent being and therefore can be personified. For Jyotish, mastering only mathematical methods is not enough; one must understand the particular character of each graha (planet).