Every reading the classical tradition supports.

Book §22 — Casting the Chart

The chart is the foundation of every other reading. Cast once at chart creation and cached forever — recomputed only when you explicitly ask.

Lagna (ascendant)

The rashi rising on the eastern horizon at the moment of birth. AstroRight uses Whole Sign houses by default, the convention every classical text from Brihat Parashara Hora Shastra onward describes.

Nine Grahas

Sun (Surya), Moon (Chandra), Mars (Mangala), Mercury (Budha), Jupiter (Brihaspati / Guru), Venus (Shukra), Saturn (Shani), and the lunar nodes Rahu and Ketu — the latter two mathematical points, always retrograde in the classical convention.

Sixteen Vargas

Sixteen divisional charts — D1 (Rashi, the foundational chart), D9 (Navamsa, marriage and dharma), D10 (Dasamsha, career), D60 (Shastiamsha, past karma) and twelve more. Each surfaces a particular life domain at a particular resolution.

Dignity tables

Every graha gets its dignity classification — exalted (Uchcha), debilitated (Neecha), in mooltrikona, in own sign, in friendly / neutral / enemy / great-enemy sign — per the classical tables in Book §11.

North + South Indian rendering

Both layouts ship as first-class. The chart switches per language preference but the data is identical — Tamil and Malayalam users default to South Indian, Hindi and Bengali default to North.

Book §3 — The Five Limbs

The classical almanac, computed for any place on Earth — never copy-pasted from a wire service. AstroRight runs Swiss Ephemeris locally for every Panchanga lookup, so the times are accurate to your exact location.

Vara

The seven-day weekday cycle, with classical lord assignments (Sun for Sunday, Moon for Monday, and so on through Saturn for Saturday). Each weekday carries its own classical associations.

Tithi

The lunar day — the angular distance between the Moon and the Sun, divided into 30 segments per lunar cycle. 1–15 are Shukla Paksha (waxing); 16–30 are Krishna Paksha (waning). 30 is Amavasya, 15 is Purnima.

Nakshatra

One of 27 lunar mansions — the segment of the ecliptic the Moon currently occupies. Each nakshatra has 4 padas. The Moon's nakshatra at birth keys the entire Vimshottari Dasha system.

Yoga

The Sun-Moon angular sum, divided into 27 named yogas. Vyatipata, Vaidhriti, Parigha and others are classically set aside from new beginnings.

Karana

Half-tithi — there are 11 karanas, of which Vishti (also called Bhadra) is classically the one to avoid for major undertakings.

Caution windows

Rahu Kalam, Yamaganda, Gulika Kalam — daily inauspicious windows derived from the local sunrise/sunset for each weekday. Computed for the user's actual GPS, not a city default.

Book §41–43 — Dasha Periods

The dasha system is what makes Vedic astrology time-windowed rather than abstract. Vimshottari is the dominant system — 120 years partitioned across the nine grahas, sequenced from the lord of your Moon's nakshatra at birth.

Mahadasha — the major period

There are nine major periods, totalling 120 years across the planets: Sun 6, Moon 10, Mars 7, Rahu 18, Jupiter 16, Saturn 19, Mercury 17, Ketu 7, Venus 20. Each major period is read for the themes its planetary lord classically governs.

Antardasha — the sub-period

Inside each Mahadasha, every planet gets its own slice — proportional to that planet's own number of years. Inside a 16-year Jupiter Mahadasha you pass through nine sub-periods, one for each planet.

Pratyantardasha — the sub-sub-period

A finer slice still — useful for reading the texture of any given month or two. Even-finer levels (Sukshma, Prana) are available when you need them.

Lord's start point

Vimshottari starts from the planetary lord of the nakshatra your Moon was in at the precise moment of birth. The remaining portion of that lord's Mahadasha you were 'born into' is calculated from how far the Moon had already travelled through the nakshatra — small details the app computes automatically and verifies for accuracy on every release.

Yogini + Ashtottari

Two alternative dasha systems shipped alongside Vimshottari for advanced users. Surface only when you opt in — most users live inside Vimshottari.

Book §45–48 — Transits

Where each graha is right now, evaluated against your natal Lagna and your natal Moon. The most-cited transit reading — Sade Sati — is shown as a single phase indicator, not as alarmist copy.

From-Lagna reading

The classical transit interpretation — counted from your natal Lagna sign. Tells you which house each transiting graha occupies right now.

From-Moon reading (Chandra-Lagna)

The classical complement — counted from your natal Moon sign. The Vedic tradition reads both, simultaneously; AstroRight surfaces both on the same screen.

Sade Sati

Saturn's seven-and-a-half year transit through the signs flanking your natal Moon. Phases — rising, peak, setting — are shown as classical observations. No fear-framing, no countdown.

Rahu / Ketu

Always retrograde, by classical convention. Their transit interpretations get equal billing with the visible grahas.

Book §49 — Ashtakavarga

A classical scoring of how favourable each rashi is for transit, derived from contributions across eight reference points (the seven visible grahas plus the Lagna). Surfaced as a heatmap by sign and a per-planet BAV breakdown.

BAV

Bindu-Ashtakavarga — the per-planet score, one row per graha, 12 columns per rashi.

SAV

Sarvashtakavarga — the sum across all seven visible grahas. The signs with the highest SAV are classically read as the most-supported transit fields right now.

Heatmap rendering

AstroRight's sign-by-sign heatmap uses a single warm sage ramp — never red or green. Vedic astrology does not code houses or signs as 'good' or 'bad,' and our visual language refuses to either.

Book §29–40

Combinations of placements that classical literature emphasises. Every yoga and dosha in AstroRight is hand-authored from the canonical chapter it cites. No artificial-intelligence has invented patterns the tradition does not actually contain.

Pancha Mahapurusha Yogas

Hamsa (Jupiter), Malavya (Venus), Ruchaka (Mars), Bhadra (Mercury), Shasha (Saturn) — each forms when its graha sits in own or exalted sign in a kendra (1, 4, 7, 10).

Gajakesari Yoga

Jupiter and Moon in mutual kendra positions (1, 4, 7, 10 from each other). Among the most-cited supportive yogas.

Raja, Dhana, Vipreet-Raj, Neecha-Bhanga

Power, wealth, reversal-of-malefic, and cancellation-of-debility yogas. Each is a classical pattern with explicit source citations in the app.

Dosha-considerations

Mangal Dosha (Mars in 1, 4, 7, 8, 12 from Lagna), Kaal Sarp Yoga (twelve named variations based on Rahu-Ketu axis), Sade Sati phasing, Pitru Dosha, Gandanta. AstroRight presents all of these as classical considerations — never as afflictions, never as fates to be cancelled with paid remedies.

Book §44 — Compatibility

The classical eight-koota compatibility analysis. AstroRight presents the full breakdown — every koota, the points each scores — but never collapses it into a single "compatible / incompatible" verdict. The tradition does not.

The eight kootas

Varna, Vashya, Tara, Yoni, Graha-Maitri, Gana, Bhakoot, Nadi — totalling 36 points across the eight factors.

No verdict

AstroRight refuses to produce a single yes/no compatibility judgment. The eight-koota breakdown IS the answer — collapsing it into a number is what lets bad-faith practitioners reject matches as "impossible." We won't do that.

Mangal-Dosha framing

Mangal Dosha shows up here as a classical consideration with the well-established exceptions (cancellation rules from §35). Two Manglik partners, one Manglik partner with explicit cancellation, debilitated Mars, etc. — all surfaced.

Book §52 — Muhurta

Sahi margdarshan, sahi samay par. Find favourable windows for marriage, vehicle purchase, griha-pravesh, business start, travel, surgery, education start, property purchase. Five to ten ranked options per query, every option annotated with the reasoning that earned its rank.

Filter pipeline

AstroRight applies the classical filters in order: Vara → Tithi → Nakshatra → Yoga → Karana → Lagna at the moment → personal-chart match (Chandra Ashtama exclusion, 8th-lord checks) → Rahu/Yamaganda/Gulika exclusions.

Ranked output

Never auto-pick "the best" moment. The output is always a list of windows, each with an explanation. The user chooses, with help.

Per-activity rules

Marriage uses different favourable nakshatras than vehicle purchase. Education start and griha-pravesh have their own classical lists. AstroRight encodes the full activity-to-rules mapping from §52.

Book §53 — Prashna; Book §54 — Rectification

Two advanced surfaces shipping in the same release: cast a chart for the moment a question is asked (Prashna), or refine an approximate birth time using known life events (Rectification).

Prashna (horary)

The classical horary system — the question asked at a particular moment encodes its own answer. AstroRight records the precise moment your question is submitted, casts a chart for that instant, and reads it for the type of question you asked. Hora Lagna, Ghati Lagna, Bhava Lagna, and Arudha Lagna are all available alongside the regular Lagna.

Rectification

Lagna shifts roughly one degree every four minutes, so an approximate birth time leaves real uncertainty. Provide a window (±30 minutes, ±2 hours) and a list of significant life events with dates; AstroRight sweeps candidate birth times, ranks them by Vimshottari-lord match against your event history, and returns the top candidates with per-event breakdowns.