Yogas in Your Chart

What this long read adds

The panel above runs your chart and lists the yogas it forms. This section is the reference behind that list: which classical texts each rule comes from, the exact test the code applies, where the code and the texts part ways, what a typical chart returns, and how much a few minutes of birth time can change. Every figure below was produced by running this calculator's own engine, and every textual claim names the chapter it comes from. For a shorter introduction to what having a yoga means, and how often Gaj Kesari, the five Mahapurusha yogas and the four Raj-named rules appear, read what a yoga in your chart means first; this page does not repeat those figures.

One idea runs through everything here. A yoga in this calculator is a rule that matched, not a measurement of strength and not a forecast. The classical authors attach conditions about strength, dignity and timing to most of these rules, and the calculator applies few of them. Where that gap matters, this page says so, rule by rule, so you can see exactly what a line in your result does and does not claim.

Where the rules come from

In a horoscope, a yoga names a recognised arrangement of grahas. Brihat Parashara Hora Shastra (BPHS) sets most of them out across Chapters 34 to 42: the lordship rules of Chapter 34, the 32 Nabhasa yogas of Chapter 35, a chapter of assorted named yogas (36), the yogas counted from the Moon (37) and from the Sun (38), the Raj Yoga chapter (39), yogas for royal association (40) and the combinations for wealth (41). Argala is in Chapter 31, and the five Mahapurusha natives are described in Chapter 75. Kalyana Varma's Saravali covers the same ground in its own order: yogas from the Moon in Chapter 13, from the Sun in Chapter 14, the Nabhasa yogas in Chapter 21, and the Raja Yogas, Chandradhi Yoga among them, in Chapter 35.

Two more sources are cited in the code itself. Amala and Mudrika Yoga, and the trika-lord rule behind Vipareeta Raja Yoga, come from Dr. S. S. Chatterjee's Advanced Predictive Astrology (2000), a modern case-study book that applies them to real charts. Dharma-Karmadhipati and Parivarthana Yoga carry a citation in the engine to S. Kannan's Fundamentals of Hindu Astrology, p. 52, and the 5th-and-9th-lord Raja Yoga to Jyotisha-Siddhanta-Sara, Ch. V. Neither book is in the searchable text set this page was checked against, so their wording is not compared here. The sources page lists every book the app uses and what it takes from each.

Yogas counted from the Moon

Saravali Ch. 13, Sl. 1 defines three yogas by what flanks the Moon: a graha other than the Sun in the 2nd sign from the Moon gives Sunapha, in the 12th gives Anapha, and in both gives Durudhura. BPHS Ch. 37, Sl. 7-10 gives the same three. The calculator counts whole signs and considers only Mars, Mercury, Jupiter, Venus and Saturn, because Saravali's own per-planet readings in Sl. 10-29 name only those five; Rahu and Ketu are not counted. It reports exactly one of the three, Durudhura first, and lists every planet involved followed by the Moon.

Kemadruma, the unsupported Moon, is where texts and code diverge most. Saravali Ch. 13, Sl. 2 joins its conditions with 'or': none of the three flanking yogas, or no planet in the Moon's angles, or no aspect on the Moon. BPHS Ch. 37, Sl. 11-13 counts the angles from the Lagna instead of from the Moon. The calculator takes the narrowest reading of all. Kemadruma appears only when no flanking yoga exists, none of the five planets stands in the 1st, 4th, 7th or 10th sign from the Moon, and no graha at all, the Sun and the nodes included, aspects the Moon's house. Saravali's verdict for it is very bleak; the engine words it instead as a placement that needs conscious support.

Saravali also asks that these yogas be read against the Moon's own state, full or new, and the strength of the planets causing them (Ch. 13, Sl. 8-9), and it gives a separate reading for each causing planet and each pair (Sl. 10-29). The calculator gives one reading per yoga and does not weigh the Moon's phase; the moon phase calculator shows the phase on its own, and the Moon sign calculator shows the sign every count here starts from.

Yogas counted from the Sun

The same structure is measured from the Sun. Saravali Ch. 14, Sl. 1 leaves out the Moon and the nodes and names the sides: a planet in the 12th from the Sun gives Vasi, in the 2nd Vesi, in both Ubhayachari. BPHS Ch. 38, Sl. 1 agrees, spelling Vasi as Vosi. The code once had the two sides the wrong way round; its own notes record the correction against both texts, and the output now follows them.

Two textual details are not applied. BPHS Ch. 38, Sl. 4 says these yogas give their stated results only when benefics cause them, and the contrary when malefics do; Saravali Ch. 14, Sl. 10 asks that the strength of the Sun and of the causing planets be weighed. The calculator treats a Vasi caused by Mars exactly like one caused by Jupiter. The two texts do not even agree on Vesi itself: Saravali's Vesi native is hard-working and keeps his word, while BPHS's is truthful but indolent. The calculator's line follows Saravali.

In the same 40,000 charts Vesi appeared in 27.5%, Vasi in 28.3% and Ubhayachari in 34.0%. Only 10.3% had none of the three, against 43.4% with no Moon-flanking outcome. The difference comes from Mercury and Venus, which always travel close to the Sun and so often occupy a sign beside it.

Chandradhi Yoga, the one graded line

Saravali Ch. 35, Sl. 20-21 forms Adhi Yoga from the Moon when the benefics occupy the 6th, 7th and 8th signs from it, those places free of the Sun and unaspected by malefics. BPHS Ch. 37, Sl. 5 gives the same arrangement and adds that its result scales with the strength of the planets taking part. The calculator checks Mercury, Venus and Jupiter in those three signs, drops any that shares a house with a malefic (the Sun counts as one) or receives a malefic aspect, and grades the result by how many remain: one gives the modest wording, two strong, three exceptionally strong. No other yoga on this page is graded.

Across the sample it appeared in 16.4% of charts: 5,445 with one qualifying benefic, 1,030 with two and 104 with all three. A sister rule, Lagna Adhi Yoga, counts from the ascendant instead: Saravali Ch. 34, Sl. 13 uses the same three places, while BPHS Ch. 36, Sl. 37 names only the 7th and 8th. It is not computed.

The Nabhasa yogas: the shape of the whole chart

BPHS Ch. 35, Sl. 1-2 counts 32 Nabhasa yogas in four groups: 3 Asraya, 2 Dala, 20 Akriti and 7 Sankhya. Saravali Ch. 21, Sl. 2-6 credits the Asraya yogas to Manitha, the two Dala yogas to Parashara and the twenty Akriti yogas to Savitracharya. They describe how the seven classical grahas, Sun to Saturn, are spread around the chart rather than where any one planet stands, which is why the Sankhya, Asraya and most Akriti entries come back with no planets named. The calculator builds all 32: the seven Sankhya, the three Asraya, both Dala and the twenty Akriti yogas.

The Asraya yogas need all seven grahas in one kind of sign: all movable gives Rajju, all fixed Musala, all dual Nala (BPHS Ch. 35, Sl. 7; Saravali Ch. 21, Sl. 18). Only 50 of the 40,000 charts had one. Several Sankhya and Asraya readings are among the harshest in either text, and the engine softens them: Gola, for example, becomes a placement that calls for extra effort to build stability.

Maala and Sarpa: how many angles?

The two Dala yogas ask whether the angles, the 1st, 4th, 7th and 10th houses, hold only benefics (Maala) or only malefics (Sarpa). The texts disagree on how many angles must be occupied: BPHS Ch. 35, Sl. 8 says three, Saravali Ch. 21, Sl. 18 says all of them. For Sarpa the calculator follows BPHS: malefics in at least three angles and no benefic in any. Of the seven grahas only the Sun, Mars and Saturn are malefics, so all three must stand in different angles. That is why a single Saturn in the 7th, as in the sample chart, does not form Sarpa. Maala is the mirror image: benefics in at least three angles and no malefic in any. The benefics among the seven grahas are the Moon, Mercury, Jupiter and Venus, so three of them must stand in different angles; a single Venus in the 1st does not form Maala.

The difference is large. Before both were brought into line with BPHS, the engine fired whenever the occupied angles held only benefics or only malefics. On that reading Maala appeared in 9,270 of the sampled charts, 6,203 of them with a single occupied angle and 251 with three or more, and Sarpa in 5,146, 3,827 of them with one occupied angle. On the BPHS rule, in a fresh 40,000, Maala forms on 254 charts, about one in 157, and Sarpa on 47, about one in 850. Not one chart in the earlier groups had all four angles occupied, so Saravali, read literally, would keep no Maala and no Sarpa at all.

The twenty Akriti yogas: shapes in the houses

BPHS Ch. 35, Sl. 9-15 defines the twenty by which houses, counted from the ascendant, the seven grahas fill, and Saravali Ch. 21, Sl. 11-16 gives the same shapes. Gada is all seven in two successive angles, Shakata in the 1st and 7th, Vihaga in the 4th and 10th, Shringataka in the 1st, 5th and 9th, and Hala in one of the other three sets of trines. Kamala fills all four angles, and Vapi all of the 2nd, 5th, 8th and 11th or all of the 3rd, 6th, 9th and 12th. Yupa, Shara, Shakti and Danda are four houses in a row starting from the 1st, 4th, 7th and 10th; Nauka, Koota, Chatra and Chapa are seven in a row from the same four houses, and Ardha Chandra is seven in a row from any other house. Chakra fills the six alternate houses from the 1st, Samudra the six from the 2nd. The calculator reads every shape strictly: all seven grahas inside the named houses and each named house holding at least one, so one crowded house never counts as several shapes at once.

Vajra and Yava are the two that depend on which grahas stand where. BPHS Sl. 9-11 says Vajra forms when all the benefics are in the 1st and 7th, or all the malefics in the 4th and 10th, and Yava the reverse. The calculator follows that "or": either half forms the yoga, and the entry names the group that formed it. Saravali Ch. 21, Sl. 14 asks for both halves at once, which puts all seven grahas in the four angles. That is a Kamala chart, and the sample has none, so on Saravali's reading Vajra and Yava would not have appeared at all.

The zeros are a property of the sky, not a gap in the code. Mercury is never more than one sign from the Sun and Venus never more than two, so shapes that need the grahas spread evenly - all four angles, six alternate houses, four houses three apart - are very hard to reach, while four houses in a row, which can hold the Sun, Mercury and Venus side by side, are the commonest shapes.

When two Nabhasa yogas collide

Both texts say Nabhasa yogas do not simply stack, but they rank them in opposite directions. BPHS Ch. 35, Sl. 16-17 says a Sankhya yoga does not operate when another Nabhasa yoga can be derived. Saravali Ch. 21, Sl. 7 says that when another Nabhasa yoga is present beside an Asraya yoga, the Asraya's effects do not come to pass and the other prevails. The calculator applies neither rule and lists every match. Every chart carries one Sankhya name, so every Maala, Sarpa, Asraya or Akriti chart shows the clash; that was 1,073 of the 40,000 sampled charts, 2.7% (350, 0.9%, before the Akriti yogas were built).

A chart cast for 5 April 1981 at 14:17 in Delhi shows the collision at its sharpest. Its seven grahas sit in Pisces and Virgo only, so it returns Yuga (two signs) and Nala (all dual signs) together. BPHS would set the Yuga aside; Saravali would set the Nala aside. On one point the two books agree: Nabhasa results are not tied to dasha periods. BPHS Ch. 35, Sl. 50 says they are felt through all the dashas, and Saravali Ch. 21, Sl. 20-21 says they act at all times, independent of dashas.

Amala, Mudrika and the fuller Gaj Kesari rule

Amala Yoga in the code follows Advanced Predictive Astrology (p. 27): an unsullied benefic in the 10th from the ascendant or from the Moon. The calculator checks Jupiter, Venus and Mercury, and reads unsullied as no malefic in the same house and no malefic aspecting it. BPHS Ch. 36, Sl. 5-6 has the same yoga as Amal Yog and asks that the 10th hold exclusively a benefic; it says nothing about aspects, so on that point the code is stricter than BPHS. Amala matched 10.4% of the sample. The house it turns on is described on the 10th house page.

Mudrika Yoga (same book, p. 28) needs Venus, Jupiter and the Moon in mutual angles or together in one house. The book calls this Jupiter-Venus-Moon combination rare. On the code's reading of mutual angles it matched 11.4% of the sampled charts, about as often as Amala.

Gaj Kesari follows BPHS Ch. 36, Sl. 3-4: Jupiter in an angle from the Lagna or from the Moon, joined with or aspected by a benefic (Venus, Mercury or the Moon), and neither debilitated, nor combust, nor in an enemy's sign by the engine's own dignity table. Checked as Jupiter in an angle from the Moon and nothing more, as it once was, it matched about a third of charts; with the full rule it matches about one in six (17.0% of 40,000). Advanced Predictive Astrology (p. 26) adds its own caution: the Moon passes through the angles from Jupiter for about nine days of every lunar month, so a great many children are born with the yoga, and ordinary charts that have it do not show the textbook results. For the planet itself see Jupiter in Vedic astrology.

Panchamahapurusha: dignity in an angle

BPHS Ch. 75, Sl. 1-2 forms these five yogas when Mars, Mercury, Jupiter, Venus or Saturn is in its own or exaltation sign and in an angle from the Lagna. The code's test reads exalted, moolatrikona or own sign. For these five planets every moolatrikona range lies inside an own sign (Aries, Virgo, Sagittarius, Libra and Aquarius), so naming it changes the label in the sentence, not which charts qualify. Slokas 3-22 of the same chapter describe each native's body, palm marks, region of rule and age at death; none of that is carried into the result.

The lordship yogas

The remaining rules read which planets rule which houses, so all of them depend on the rising sign. Each states one condition:

• Dharma-Karmadhipati: the lords of the 9th and 10th in the same house, and that house an angle or a trine. For Taurus rising one planet, Saturn, rules both, and the result names it twice (Saturn and Saturn). It is still one planet, and the test reduces to Saturn standing in an angle or a trine.
• Raja Yoga: the lords of the 5th and 9th in the same house, any house. BPHS Ch. 39, Sl. 33-34 gives a wider version of the same pairing that also counts mutual aspect and mutually 7th positions; the code counts only the shared house.
• Kendra-Kona Raj Yoga (BPHS Ch. 41, Sl. 28): any angle lord and a different trine lord in the same house or in mutual aspect. The ascendant lord counts as both, as BPHS Ch. 34, Sl. 2-7 says. All qualifying pairs are listed in one entry.
• Vipareeta Raja Yoga: the lord of the 6th (Harsha), the 8th (Sarala) or the 12th (Vimala) placed in any of the 6th, 8th or 12th houses.
• Dhan Yoga, two families from BPHS Ch. 41: Great Affluence (Sl. 2-8), a planet in its own sign as the 5th house with named planets in the 11th; and Wealth (Sl. 9-15), a planet in its own sign as the ascendant, joined or aspected by two or three named planets.
• Parivarthana Yoga: two of the seven grahas each in the other's sign.

Several of these leave out conditions the texts attach, and the gaps change results. BPHS Ch. 34, Sl. 11-12 lists the angle-trine relationships that make a yoga: an exchange, a joining in an angle or a trine, one lord placed in the other kind of house, or a full mutual aspect. Sl. 15 adds that an angle or trine lord which also rules an evil house does not form a Raj Yoga by such a relationship alone. The code follows Chapter 41's general wording instead, accepts a joining in any house, and does not apply Sl. 15. On the sample date, a birth at 05:00 instead of 06:42 puts Cancer on the ascendant and returns Kendra-Kona for the Moon and Jupiter together; Jupiter there rules the 6th as well as the 9th, the very case Sl. 15 excludes.

For Vipareeta Raja Yoga, the rule Advanced Predictive Astrology quotes from Uttara Kalamrita (pp. 117-118) puts each trika lord in one of the other two trika houses, the 8th lord in the 6th or 12th and so on, or links the three lords to one another, and adds two provisos: the lords should not be linked to the lords of other houses, and no other planets should occupy those houses. The code applies neither proviso and also counts a trika lord sitting in its own house. Its sentence then still reads a trika lord placed in another trika house, though the house is the lord's own. That case is a third of all entries: 9,781 of the 29,561 Vipareeta lines in the sample. Harsha, Sarala and Vimala each appeared in about a quarter of charts (24.4%, 24.5% and 25.0%). The three houses involved have their own pages: the 6th, the 8th and the 12th.

The Dhan Yogas are the opposite of common: Wealth matched 279 charts (0.7%) and Great Affluence 87 (0.2%), because each needs an exact own-sign placement in a fixed house plus specific planets in a second fixed position. BPHS Ch. 41, Sl. 17 asks that even these be read only after judging the dignity and strength of the planets taking part, which the calculator does not do.

Parivarthana has two readings. The exchange is called strongly favourable only when both planets rule at least one angle or trine from the ascendant; every other exchange gets the mixed reading, whose wording gives a 6th, 8th or 12th lordship as the reason. That is the usual case but not the only one. In one 20,000-chart run, 685 of the 4,078 mixed lines involved neither a 6th, 8th nor 12th lord: Mercury and Venus exchanging for Leo rising, for instance, rule the 2nd and 11th and the 3rd and 10th. Read the mixed line as saying only that the two planets do not both rule an angle or a trine. Across the full sample, 7,782 exchanges took the favourable line and 8,152 the mixed one, in 14,863 charts (37.2%). BPHS names several specific exchanges with readings of their own, among them the 2nd and 9th lords (Ch. 36, Sl. 25-26), the ascendant and 5th lords (Ch. 39, Sl. 6-7) and the ascendant and 10th lords (Ch. 40, Sl. 13); the calculator reports each simply as Parivarthana.

Argala Raj Yoga

BPHS Ch. 31, Sl. 2-9 gives the 2nd, 4th and 11th from a house as places of Argala, intervention, obstructed by the 12th, 10th and 3rd, with the 5th obstructed by the 9th; Sl. 18 says unobstructed Argala on the Lagna, the 5th and the 9th together makes one fortunate. The code tests this by planet count alone, using the seven classical grahas: a house has Argala when any pair's supporting side holds more planets than its obstructing side. It leaves out the text's alternative test by strength, its quarter-of-a-sign rule (Sl. 10) and its reversed counting for Rahu and Ketu. The Argala calculator shows the same verdict for all twelve houses.

Reading the sample chart line by line

The worked example above, a birth on 14 August 1994 at 06:42 in Ahmedabad with Leo rising, returns five lines. Each can be traced to its placements, and so can one that is absent:

• Anapha: the Moon is in Libra and Venus in Virgo, the 12th sign from it. Nothing occupies Scorpio, the 2nd, so it is Anapha rather than Durudhura.
• Vasi: the Sun is in Cancer and Mars in Gemini, the 12th sign from it; Leo, the 2nd, is empty.
• Pasa: the seven grahas occupy Cancer (Sun, Mercury), Libra (Moon, Jupiter), Gemini, Virgo and Aquarius, five signs.
• Not Sarpa: of the four angles from Leo, only the 7th, Aquarius, holds a planet, Saturn alone. BPHS asks for malefics in three angles.
• Sasa: Saturn at 16.50 degrees Aquarius is inside its moolatrikona range, in the 7th house.
• Gaj Kesari: Jupiter shares Libra with the Moon, the 1st from the Moon, so it is joined with a benefic; Jupiter is Neutral in Libra and not combust.

What did not form is as informative. Mercury stands in Cancer, the 10th sign from the Moon, which is half of the Amala rule, but it shares the 12th house with the Sun, a malefic, so it is not unsullied. Argala Raj Yoga needs unobstructed Argala on the 1st, 5th and 9th; the 5th and 9th have it, the ascendant does not. Its 12th holds two planets against Venus alone in the 2nd, its 3rd holds two against Mars alone in the 11th, and its other two pairs hold none of the seven grahas. No angle lord and trine lord share a house or aspect each other, so even the commonest Raj-named rule is absent, and no lord of the 6th, 8th or 12th sits in a trika house.

The texts would still qualify some of the five. Vasi is caused here by Mars, a malefic, and BPHS Ch. 38, Sl. 4 says a malefic cause gives the contrary of the stated result. Gaj Kesari passes on the Moon alone. BPHS Ch. 3, Sl. 11 counts a waning Moon among the malefics, a distinction the engine does not draw; here the Moon, about 87 degrees ahead of the Sun, is waxing, so the yoga stands on either reading. None of this makes the output wrong as a statement of which coded rules matched. It shows why a matched rule is where a reading starts, not where it ends. How one planet can feed two rules is discussed in the yoga article, and Saturn's wider role in Saturn in Vedic astrology.

How to read each kind of line

Every entry has the same parts: a name, the planets the rule names, a sentence stating the condition that matched in your chart, and a reading, usually opening with the words 'Classically read as'. A few patterns are worth knowing:

• No planets named: the Sankhya and Asraya yogas and Argala Raj Yoga describe how the whole chart is filled, not a placement. That is why the Kundali, which times each yoga by the Mahadashas of its planets, gives these no window.
• The reference point is listed too: the Moon-based yogas name the Moon after the flanking planets, the Sun-based ones name the Sun.
• A repeated planet, as in Saturn and Saturn, means one planet holds both lordships the rule asks for.
• The Kendra-Kona line lists every qualifying pair, separated by semicolons, each marked together or in mutual aspect.
• Chandradhi Yoga is the only line whose wording changes with a count: modest, strong or exceptionally strong.
• A Vipareeta line can call the lord's own house another trika house, as explained above.
• The favourable Parivarthana line needs both planets to rule an angle or a trine; every other exchange gets the mixed line.

These lines come from other charts run through the same engine:

Birth time: which lines move, and how fast

Some families are counted from the ascendant and some are not, and that decides how sensitive each line is to birth time. The Moon and Sun yogas, Chandradhi, the Sankhya and Asraya yogas, Gaj Kesari and Mudrika compare planets with one another. They change only when a planet changes sign, which for the Moon, at about 13 degrees a day, happens a little more than every two days. Amala is half and half: its 10th-from-the-Moon branch does not depend on the ascendant, its 10th-from-the-ascendant branch does. Everything else, the Mahapurusha and Dala yogas, Argala Raj Yoga and all the lordship yogas, depends on which sign is rising.

Running the sample date minute by minute shows the scale. On 14 August 1994 in Ahmedabad the ascendant passed through thirteen sign windows between midnight and midnight, Aries at both ends, and the Moon left Libra for Scorpio at 15:49. Together they produced fourteen different lists in one day, from three entries to nine:

The sample's own list holds from 06:32 to 08:43, so its recorded 06:42 sits ten minutes inside the window. A birth at 06:31, one minute before Leo rises, loses Sasa and gains Argala Raj Yoga, Sarala Yoga and a Kendra-Kona Raj Yoga. Close to a sign boundary the effect is sharper still. For a birth on 12 June 1986 in Delhi the engine puts the ascendant at 29.73 degrees Aries at 03:43 and 0.02 degrees Taurus at 03:44. The 03:43 chart's only house-based line is one Kendra-Kona pair; the 03:44 chart adds Amala, Argala Raj Yoga, Dharma-Karmadhipati, Vimala and a second Kendra-Kona pair. An ascendant that close to an edge cannot be settled by any calculator without an exactly recorded time, and a program with a slightly different ayanamsa could put it on the other side.

Two practical steps follow. Check how far your ascendant sits from a sign edge with the Lagna calculator. If your birth time is uncertain, run this page at the earliest and the latest plausible time and read only the lines that survive both; what an unknown birth time costs explains the wider picture. Without a birth time and a resolved place the calculator returns nothing at all, not even the Moon and Sun yogas that need no houses, because the engine does not run without an ascendant.

What the calculator does not weigh

• Strength. BPHS Ch. 39, Sl. 3-5 says Raj Yoga results come in full, by half or by a quarter according to the strength of the planets; Ch. 41, Sl. 17 says the same of the wealth yogas; Saravali Ch. 13, Sl. 8-9 and Ch. 14, Sl. 10 say it of the Moon and Sun yogas. Apart from Chandradhi's count, no line is graded. Shad Bala and Vimshopaka Bala measure strength separately.
• Benefics that change. BPHS Ch. 3, Sl. 11 makes the waning Moon a malefic, and Mercury too when joined with one; Ch. 34, Sl. 8-10 calls the Moon only mediocre in benefice and Mercury neutral. The code holds Jupiter, Venus, Mercury and the Moon as benefics in every chart.
• Partial aspects. BPHS Ch. 26, Sl. 2-5 grades aspects in quarter steps on the 3rd and 10th, the 5th and 9th and the 4th and 8th. The code uses only full whole-sign aspects: the 7th for every graha, plus the special aspects of Mars, Jupiter and Saturn.
• Divisional dignity. BPHS Ch. 41, Sl. 18-34 refines the angle and trine lords by their standing across the vargas, Parijatamsa and the rest. The code reads the birth chart only; the Navamsa calculator shows the most used varga for comparison.
• Cancellation and timing. There are no cancellation rules, and the page does not say when a yoga acts. BPHS Ch. 31, Sl. 2-9 says Argala acts in the dashas of the sign or graha concerned, and Ch. 41, Sl. 16 ties wealth from the 5th and 9th lords to their dashas. The Vimshottari Dasha calculator gives those dates.
• Positions. Planets come from this app's own astronomy (Meeus formulas for the Sun and Moon, JPL Keplerian elements for the five planets) with the Lahiri ayanamsa, mean nodes and whole-sign houses, as the methodology page explains. Swiss Ephemeris is not used. A planet within a fraction of a degree of a sign edge can fall on the other side in another program.

Where yogas appear elsewhere in Astro Clock AI

This calculator is the public face of one engine function, and the same output is reused inside the app. The signed-in Kundali lists every detected yoga with a Mahadasha note: for yogas whose rule names planets, whether one of those planets' Mahadashas is running now, comes next or has passed. The Life Blueprint files Kemadruma, Sarpa, Gola and Yuga under blind spots and the rest under strengths. Career and Money reads only the two Dhan Yoga families, alongside its own wealth timing. The AI Life Chat receives the full list and is instructed to cite yogas only from it.

For the placements these rules lean on, open the free birth chart, and the Sun sign calculator for the reference point of the Sun yogas. Sarpa Yoga is not Kaal Sarp Dosha, despite the shared word: the Kaal Sarp calculator tests something else entirely, and Kaal Sarp Dosha explained covers why. For the luminary most of these rules start from, see the Moon in Vedic astrology, and for the houses the lordship yogas turn on, the 5th house and the 9th house.

Why can another app or astrologer list different yogas for the same birth details?

Usually for one of three checkable reasons. The rule differs: this page applies one stated version of each yoga, and the texts themselves disagree, as the Maala, Sarpa and Kemadruma sections show. The houses differ: the code counts whole signs from the ascendant. Or the positions differ slightly, which matters near a sign edge, where one minute changed most of the house-based lines in the 1986 example. Compare the condition each line states before comparing names. The methodology page lists every choice behind the positions.

Is Sarpa Yoga the same as Kaal Sarp Dosha?

No. Sarpa Yoga is a Nabhasa Dala yoga from BPHS Ch. 35 and Saravali Ch. 21: angles held only by malefics. Kaal Sarp Dosha asks whether the seven grahas all fall on one side of the Rahu-Ketu axis, and none of the searchable astrology texts in this app's library names it. They are separate tests on separate pages; see the Kaal Sarp calculator.

My list shows a Sankhya yoga such as Pasa and also Maala or Sarpa. Which one counts?

The texts give opposite precedence rules. BPHS Ch. 35, Sl. 16-17 sets a Sankhya yoga aside whenever another Nabhasa yoga can be derived; Saravali Ch. 21, Sl. 7 sets an Asraya yoga aside when another Nabhasa yoga is present. The calculator lists every match rather than choose between the books. If you follow BPHS, read the Sankhya line as subordinate to the Maala, Sarpa or Akriti line beside it.

Why does Kemadruma appear so rarely here?

Because the calculator requires all three of its conditions at once: no flanking planet, no planet from Mars to Saturn in an angle from the Moon, and no aspect on the Moon from any graha. Only 1.3% of the 40,000 sampled charts met all three. Saravali's wording joins the conditions with 'or', which would admit many more charts; the code chose the strictest reading, and words the result as a call for support, not a verdict.

Why does one planet give me a supportive yoga and a testing one?

Because each rule tests a different property of the same placement. Saturn in its own sign in an angle meets the Sasa rule (dignity in an angle); if the Sun and Mars hold two other angles and no benefic stands in any, the same Saturn also completes the Sarpa rule (malefics in three angles). Both are true statements about the chart. What a yoga in your chart means walks through this case.

Does a yoga act only during its planet's dasha?

The texts differ by yoga. BPHS Ch. 35, Sl. 50 and Saravali Ch. 21, Sl. 20-21 say Nabhasa yogas act throughout life. BPHS Ch. 31 says Argala acts in the dashas of the sign or graha concerned, and Ch. 41, Sl. 16 ties wealth from the 5th and 9th lords to their dashas. This calculator does not time anything; the Kundali notes Mahadasha windows for each yoga with named planets, and what a Mahadasha is explains the periods themselves.

Are Lakshmi, Parvat, Budha-Aditya or Lagna Adhi Yoga checked?

No. BPHS Ch. 36 names many more yogas, Parvat, Kahal, Chamar, Shankh, Lakshmi and Kalanidhi among them, and gives Lagna Adhi Yoga in Sl. 37; none is coded, and Budha-Aditya is not implemented either. A name missing from your list means the rule was not run, not that your chart fails it.

Can one yoga be cancelled by something else in my chart?

The texts describe such conditions: a lord of an evil house cannot make a Raj Yoga by mere relationship (BPHS Ch. 34, Sl. 15), a malefic cause reverses the Sun yogas (Ch. 38, Sl. 4), and Ch. 42, Sl. 16-18 pairs some poverty combinations with the aspect that nullifies them. The calculator applies no cancellation. Each line stands alone, and lines that point different ways are both shown.

What should I do if my birth time is only approximate?

Find the window your ascendant sign holds with the Lagna calculator, run this page at both ends of your plausible range, and rely only on the lines common to both. The Moon and Sun lines usually hold for hours, unless the Moon is near a sign edge, as it was on the sample date at 15:49.