Classical Indian astrology knowledge library

Begin with the nine planets, signs, and twelve houses to understand what birth charts, divisional charts, and dashas each reveal.

The references, degrees, and period-start relationships of tropical zodiac signs and Dhruva lunar mansions.

What planets represent, how signs shape expression, and which life areas houses correspond to.

How the ascendant is determined, how its ruler is selected, and the role of its actual placement.

What whole-sign houses, Campanus cusps, and divisional-chart cusps each represent.

How birth-record uncertainty affects planets, the ascendant, cusps, and divisional placements.

How local clock time is converted, and how historical time zones and daylight saving time are accounted for.

Compare two chart calculations step by step, from birth data to coordinates, houses, divisional charts, and dashas.

Planets' natural qualities and house-lord responsibilities, and how the same planet changes with different Ascendants.

The relationship between planetary capacity, actual conditions and outcomes, and how ease and effort can coexist.

What domicile, exaltation, and fall mean, and how dispositors and other support affect expression.

The observational meaning of retrograde motion and its interpretation across planets, cycles and life themes.

The respective conditions for combustion and planetary war, and their roles in interpretation.

Different conventions for planetary and sign aspects, and how both ends of a connection participate in the same question.

Trace rulers through occupied signs to understand final dispositors, mutual reception, and longer loops.

How the three types of mutual reception form, which houses they involve, and what support and difficulties they bring.

Connections between angular and trinal houses, four types of condition, and how interference and planetary periods affect a combination's expression.

How the seven classical planets are distributed across four perspectives: number, quality, angular houses, and shape.

Use the Sun or Moon as a reference to understand planetary combinations on either side and the conditions that modify them.

How degrees map into divisional charts, and how to examine the person, specific subjects, and natural significators.

What D9 and D7 each reveal about marriage choices, shared direction, and everyday life together.

Career abilities, working conditions and changes over time in D10, and their connection to the natal chart.

How D7 offers a closer look at shared life, cooperation, parenting, and responsibility.

Parental indications, formative experiences and family inheritance in D12.

Acquiring, retaining, and using resources, alongside actual income, expenses, and responsibilities.

Sibling relationships, skills and active effort, and their connections to the natal chart and actual circumstances.

Home, property, and belonging, and how D4 adds to discussions of relocation and settling down.

Vehicles, mobility, and comfort in daily life, along with practical conditions for purchase and use.

The direction, effort and support for spiritual practice, and how it fits into daily life.

Understanding, training, examinations and qualifications: Different conditions and outcomes in education.

Specific areas of difficulty and pressure, the D30 calculation method used, and available support.

How half-degree divisions, positional boundaries and birth-time uncertainty affect D60 readings.

Major periods, subperiods and finer timing levels, and how an experience connects with the stages before and after it.

What natal charts, dashas and transits each reveal, and how they work together in timing assessments.

How shared needs, the eight factor scores, key defects, and modifying conditions together describe support and difficulty in a relationship.

Describe what you truly want to ask using your current situation, specific choices and relevant background.

How two selections produce three group counts, and how the original counts and three-digit number enter the divination.

Understand the main house-ruler connections for Aries Ascendant through Mars ruling 1/8, Venus ruling 2/7, and Mercury ruling 3/6.

Venus rules 1/6, Mercury 2/5, and Saturn 9/10. Place stability, creativity and long-term building within their distinct responsibilities.

Mercury rules 1/4, Jupiter 7/10 and Venus 5/12. Explore how expression, environment, cooperation and social action connect.

The Moon rules the Ascendant, Mars rules 5/10, and Saturn rules 7/8. Distinguish personal feelings, creative action and shared foundations.

The Sun rules the ascendant, Mars rules 4/9, and Mercury 2/11. Distinguish autonomous expression, inner support, and external gains.

Mercury rules 1/10, Jupiter 4/7 and Venus 2/9. Their responsibilities offer a way to understand organization, responsibility, values and shared life.

Venus rules 1/8, Mars 2/7, and Saturn 4/5. Link negotiating ability with personal action, trust and long-term cultivation.

Mars rules 1/6, Jupiter 2/5 and Venus 7/12. Explain focused effort, creativity and the costs within relationships separately.

Jupiter rules 1/4, Mercury rules 7/10, and Mars rules 5/12. Understand their tasks through meaning, shared life and creative investment.

Saturn rules 1/2, Venus 5/10, and Mercury 6/9. Connect responsibility, accumulation, creative direction, and practical problems.

Saturn rules 1/12, Venus 4/9, and Mercury 5/8. Distinguish solitude, meaning, innovation, and ways of facing change.

Jupiter rules 1/10, Mercury rules 4/7, and Mars rules 2/9. Place meaning, practical contribution and shared life within their specific responsibilities.

The first house describes who is acting and what they seek to embody. Its emphasis differs from the tenth house's achievements and the Sun's function of self.

The second house concerns more than income figures. It includes what one retains, uses and values, and how family, speech and resources connect.

The third house examines how people try, practice and act with those around them. It should be distinguished from the fifth house's creative training and the tenth house's achievement.

Having a place to live, being cared for and feeling safe are related but distinct. The 4th house explores both the physical home and inner foundations.

The fifth house connects intelligence, creative work, romance and children with creative expression. It concerns what can grow through a person's devoted effort.

Why are competition, burdens, debt and habits connected? The sixth house examines how people face tasks that must be handled, rather than merely listing difficulties.

The seventh house extends beyond one's “other half” to matters requiring two parties: spouses, cooperation, public relations and practical responsibilities.

The eighth house connects matters beyond one's sole control. How do intimacy, inheritance, shared resources and change fit into one perspective?

The ninth house is more than “good luck.” Learning, culture, long journeys and beliefs together address how a person understands their path.

The tenth house examines how people accomplish things in the public world. Job titles, actual contributions, daily labor and life direction should each be made clear.

The eleventh house concerns what one gains from social exchange. Connections, titles, income and fulfilled wishes are related, but do not necessarily bring the same kind of satisfaction.

Spending is not necessarily wasteful, and keeping something does not necessarily make it valuable. The twelfth house examines outflows and endings through how resources are used.

The Sun’s confidence comes from recognizing the contribution one can make. This is distinct from the Moon’s story of identity, the person represented by the first house, and the achievements of the tenth house.

The Moon represents more than emotions. It connects the senses, memory, imagination, decisions and how a person receives nourishment in daily life.

Sattvam is not only about competition. It also concerns self-discipline, reliability and whether one can continue to act according to accepted principles when obstacles arise.

Mercury’s speech includes organizing, comparing, negotiating and communicating. Knowing a great deal, speaking fluently and making oneself understood need to be assessed separately.

Jupiter's knowledge is more than information or qualifications. It concerns direction, trust, tolerance and the ability to develop a fuller understanding through change.

Venus symbolizes more than love and beauty. It also concerns how people replenish vitality, recognize value and sustain the life they cherish.

Saturn brings people face to face with conditions they cannot immediately change. Accepting facts, taking on tasks, and enduring prolonged depletion need to be understood separately.

Rahu is the ascending node, symbolizing attraction toward and amplification of areas not yet mastered. How do unfamiliarity, desire and learning interact?

Ketu does not mean only loss. It also concerns why familiar approaches no longer satisfy, and how to recognize which experiences remain worth keeping.

Ashwini is the 1st of the 27 lunar mansions, ruled by Ketu. This page lists its internal intervals and their relationship to the starting Vimshottari period.

Bharani is the 2nd of the 27 lunar mansions, ruled by Venus. This page lists its internal intervals and their relationship to the starting Vimshottari period.

Krittika is the 3rd of the twenty-seven lunar mansions, ruled by the Sun. This page lists its internal divisions and their relationship to the starting Vimshottari dasha.

Rohini is the 4th of the 27 lunar mansions, ruled by the Moon. This page lists its subdivisions and their relationship to the starting Vimshottari period.

Mrigashira is the 5th of the twenty-seven lunar mansions, ruled by Mars. This page lists its internal divisions and their relationship to the starting Vimshottari dasha.

Ardra is the 6th of the 27 lunar mansions, ruled by Rahu. This page lists its internal intervals and their relationship to the starting Vimshottari period.

Punarvasu is the 7th of the twenty-seven lunar mansions, ruled by Jupiter. This page lists its internal divisions and their relationship to the starting Vimshottari dasha.

Pushya is the 8th of the twenty-seven lunar mansions, ruled by Saturn. This page lists its internal divisions and their relationship to the starting Vimshottari dasha.

Ashlesha is the 9th of the 27 lunar mansions, ruled by Mercury. This page lists its internal intervals and their relationship to the starting Vimshottari period.

Magha is the 10th of the twenty-seven lunar mansions, ruled by Ketu. This page lists its internal divisions and their relationship to the starting Vimshottari dasha.

Purva Phalguni is the 11th of the twenty-seven lunar mansions, ruled by Venus. This page lists its internal divisions and their relationship to the starting Vimshottari dasha.

Uttara Phalguni is the 12th of the 27 lunar mansions, ruled by the Sun. This page lists its subdivisions and their relationship to the starting Vimshottari period.

Hasta is the 13th of the twenty-seven lunar mansions, ruled by the Moon. This page lists its internal divisions and their relationship to the starting Vimshottari dasha.

Chitra is the 14th of the 27 lunar mansions, ruled by Mars. This page lists its internal intervals and their relationship to the starting Vimshottari period.

Swati is the 15th of the 27 lunar mansions, ruled by Rahu. This page lists its subdivisions and their relationship to the starting Vimshottari period.

Vishakha is the 16th of the 27 lunar mansions, ruled by Jupiter. This page lists its subdivisions and their relationship to the starting Vimshottari period.

Anuradha is the 17th of the 27 lunar mansions, ruled by Saturn. This page lists its internal intervals and their relationship to the starting Vimshottari period.

Jyeshtha is the 18th of the twenty-seven lunar mansions, ruled by Mercury. This page lists its internal divisions and their relationship to the starting Vimshottari dasha.

Mula is the 19th of the twenty-seven lunar mansions, ruled by Ketu. This page lists its internal divisions and their relationship to the starting Vimshottari dasha.

Purva Ashadha is the 20th of the twenty-seven lunar mansions, ruled by Venus. This page lists its internal divisions and their relationship to the starting Vimshottari dasha.

Uttara Ashadha is the 21st of the 27 lunar mansions, ruled by the Sun. This page lists its subdivisions and their relationship to the starting Vimshottari period.

Shravana is the 22nd of the 27 lunar mansions, ruled by the Moon. This page lists its subdivisions and their relationship to the starting Vimshottari period.

Dhanishta is the 23rd of the twenty-seven lunar mansions, ruled by Mars. This page lists its internal divisions and their relationship to the starting Vimshottari dasha.

Shatabhisha is the 24th of the 27 lunar mansions, ruled by Rahu. This page lists its subdivisions and their relationship to the starting Vimshottari period.

Purva Bhadrapada is the 25th of the twenty-seven lunar mansions, ruled by Jupiter. This page lists its internal divisions and their relationship to the starting Vimshottari dasha.

Uttara Bhadrapada is the 26th of the 27 lunar mansions, ruled by Saturn. This page lists its subdivisions and their relationship to the starting Vimshottari period.

Revati is the 27th of the twenty-seven lunar mansions, ruled by Mercury. This page lists its internal divisions and their relationship to the starting Vimshottari dasha.

Ketu's major period has a standard length of 7 years. Below are the subperiod sequence, proportional durations and relevant assessment conditions.

The standard length of the Venus major period is 20 years. Below are the subperiod sequence, proportional durations in years and relevant interpretive conditions.

The Sun’s major period has a standard length of 6 years. Below are the subperiod sequence, proportional durations, and relevant assessment conditions.

The standard Moon mahadasha lasts 10 years. Below are the antardasha sequence, proportional durations and relevant assessment conditions.

The standard Mars major period lasts 7 years. Below are the subperiod sequence, proportional durations and relevant assessment conditions.

Rahu's major period has a standard length of 18 years. Below are the subperiod sequence, proportional durations and relevant assessment conditions.

The standard Jupiter mahadasha lasts 16 years. Below are the antardasha sequence, proportional durations and relevant assessment conditions.

Saturn's major period has a standard length of 19 years. Below are the subperiod sequence, proportional durations, and relevant interpretive conditions.

Mercury's mahadasha has a standard length of 17 years. Below are the antardasha sequence, year proportions and relevant assessment conditions.