Divisional charts (vargas)

Navamsa (D9 chart) in Vedic astrology

The navamsa, or D9 chart, is the ninth divisional chart. It splits each sign into nine parts of 3°20′ and gives each part a sign. Astrologers read it for marriage and for the true strength of each planet. A planet in the same sign in the birth chart and the navamsa is called vargottama.

Updated Nov 3, 2026

More terms in Divisional charts (vargas)

Navamsa: how the API computes it

The navamsa splits each sign into nine parts of 3°20′. Each part is given a sign, and a planet takes the sign of the part it sits in. Where the count starts depends on the sign type (VG-04).

A movable sign starts at itself. A fixed sign starts at the 9th sign from it, and a dual sign at the 5th. The ascendant (rising sign) crosses one of these parts in about 13 minutes on average. So the navamsa needs an accurate birth time.

Call POST /v1/chart/D9 with the same birth details as the main chart. The response gives the navamsa sign and house of the ascendant and of each planet. A planet may sit in the same sign in the birth chart and the navamsa.

Such a planet is called vargottama and is read as stronger. Astrologers read the navamsa for marriage. They also use it to judge how well each planet can give what the birth chart promises.

Navamsa in a real API answer

POST /v1/chart/D9200 OK

{
  "varga": "D9",
  "signifies": "the spouse, and the inner strength of every graha",
  "ascendant": {
    "sign": "Gemini"
  },
  "positions": [
    {
      "name": "Sun",
      "sign": "Pisces",
      "house": 10
    },
    {
      "name": "Moon",
      "sign": "Leo",
      "house": 3
    },
    {
      "name": "Mars",
      "sign": "Sagittarius",
      "house": 7
    }
  ]
}

John Doe's navamsa (D9) chart: what the API says it is read for, the rising sign in this chart, and the sign and house of the Sun, Moon and Mars. Real output for John Doe, born Aug 15, 1990, 10:30 AM, New York.

Get it from the API

Any of the 16 divisional charts (D1 to D60). Here is the call to API for Astrology (apiforastrology.com) for our sample, John Doe, born Aug 15, 1990, 10:30 AM, New York.

POST /v1/chart/D9

# John Doe, born Aug 15, 1990, 10:30 AM, New York
curl -X POST "https://apiforastrology.com/api/astrology/v1/chart/D9" \
  -H "Authorization: Bearer $ASTROLOGY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"year":1990,"month":8,"day":15,"hour":10,"minute":30,"second":0,"latitude":40.7128,"longitude":-74.006,"timezone":"America/New_York"}'

Answer (long lists shortened)200 OK

{
  "meta": {
    "ayanamsa": "lahiri",
    "ayanamsa_value": 23.7260727,
    "julian_day": 2448119.10483,
    "ephemeris": "JPL DE440s",
    "node": "true",
    "timezone": {
      "source": "zone",
      "offset_hours": -4,
      "zone": "America/New_York",
      "abbreviation": "EDT",
      "dst": true,
      "dst_hours": 1,
      "ambiguous_resolved_by_fold": null,
      "note": "read from the IANA tz database at this instant, so daylight saving and historical offset changes are included"
    }
  },
  "varga": "D9",
  "divisions": 9,
  "signifies": "the spouse, and the inner strength of every graha",
  "ascendant": {
    "name": "Ascendant",
    "sign": "Gemini",
    "sign_number": 3,
    "house": 1
  },
  "positions": [
    {
      "name": "Sun",
      "sign": "Pisces",
      "sign_number": 12,
      "house": 10
    },
    {
      "name": "Moon",
      "sign": "Leo",
      "sign_number": 5,
      "house": 3
    },
    {
      "name": "Mars",
      "sign": "Sagittarius",
      "sign_number": 9,
      "house": 7
    }
  ]
}

Where the API returns it

POST	/v1/chart/{division}	Any of the 16 divisional charts (D1 to D60)
POST	/v1/karma	Karma reading: what you bring and where you are headed
POST	/v1/spiritual	Spiritual path reading: devotion and release
POST	/v1/planets	Planet positions and the ascendant
POST	/v1/chart/svg	The birth chart or any divisional chart as an SVG or PNG image
POST	/v1/prashna	Question chart (prashna): one question, read for the moment it is asked

What the API reference says

Each line is quoted from the reference page of the endpoint named above it.

POST /v1/chart/{division} · Any of the 16 divisional charts (D1 to D60)Each chart is read for one area of life: for example, D9 (navamsa) for the spouse and D10 (dasamsa) for career.
POST /v1/spiritual · Spiritual path reading: devotion and releaseThe karakamsa is the navamsa (D9) sign of the atmakaraka, the planet at the highest degree within its sign.
POST /v1/planets · Planet positions and the ascendantvargottama is true when the planet is in the same sign in the birth chart and the navamsa (D9).

Feature page: Kundli and birth charts. Who uses it: Astrologer consultation platforms. The classical rules the API follows are in the rulebook.

How we check the numbers

Every value here starts from planet positions worked out from NASA JPL planet data (DE440). We test them against NASA JPL Horizons, NASA's planet position service. On 25,571 positions from 1850 to 2149, the Sun and planets agree within 0.001 arc seconds. The Moon agrees within 0.011. On 2,000 random birth charts, the rising sign agrees with Swiss Ephemeris within 0.004 arc seconds. An arc second is 1/3,600 of a degree. A practicing astrologer reviews the rules behind these answers. See how we test.

Related terms

From the blog

Astrology API

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Your first answer

John Doe, New York

POST /v1/planets200 OK

RisingVirgoHast
SunCancerAshlesha
MoonTaurusMrigashira
MarsAriesKrittika

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