Planet condition and strength
Combustion (asta) in Vedic astrology
Updated
Combustion: how the API computes it
The API calls a planet combust when it is within a set distance of the Sun (CH-07). Each planet has its own distance. It is 12 degrees for the Moon, 17 for Mars, 14 for Mercury, 11 for Jupiter, 10 for Venus and 15 for Saturn.
While Mercury is retrograde, which means it seems to move backward, its distance drops to 12 degrees. Venus drops to 8 degrees in the same case. The distance is measured along the zodiac only.
A planet's height above or below the Sun's path does not count. Rahu and Ketu are points in the sky, not bodies, so they are never combust. POST /v1/planets returns a combust flag for each planet in a birth chart.
GET /v1/sky does the same for the sky right now, with the same rule. GET /v1/sky/events and POST /v1/forecast/annual give dated combustion periods. The old texts do not agree on these distances. So every combustion period in a response states the distance it used (AN-04).
Combustion also shows up as kopa, one of the planet states on POST /v1/avasthas.
Get it from the API
POST /v1/planets
# John Doe, born Aug 15, 1990, 10:30 AM, New York
curl -X POST "https://apiforastrology.com/api/astrology/v1/planets" \
-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"}'{
"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"
}
},
"ascendant": {
"name": "Ascendant",
"longitude": 169.934155,
"sign": "Virgo",
"sign_number": 6,
"degree_in_sign": 19.934155,
"degree_dms": "19 : 56 : 03",
"house": 1,
"nakshatra": "Hast",
"nakshatra_lord": "Moon",
"pada": 3,
"speed": 0,
"retrograde": false,
"combust": false,
"dignity": "n/a",
"vargottama": false,
"pushkara": {
"navamsa": false,
"navamsa_number": 6,
"bhaga": false,
"bhaga_degree": 9,
"bhaga_by_element": false,
"bhaga_degree_by_element": 14,
"sources_agree": true,
"orb_degrees": 1
}
},
"positions": [
{
"name": "Sun",
"longitude": 118.7753409,
"sign": "Cancer",
"sign_number": 4,
"degree_in_sign": 28.7753409,
"degree_dms": "28 : 46 : 31",
"house": 11,
"nakshatra": "Ashlesha",
"nakshatra_lord": "Mercury",
"pada": 4,
"speed": 0.9610665,
"retrograde": false,
"combust": false,
"dignity": "friend",
"vargottama": false,
"pushkara": {
"navamsa": false,
"navamsa_number": 9,
"bhaga": false,
"bhaga_degree": 8,
"bhaga_by_element": false,
"bhaga_degree_by_element": 7,
"sources_agree": true,
"orb_degrees": 1
}
},
{
"name": "Moon",
"longitude": 54.5750352,
"sign": "Taurus",
"sign_number": 2,
"degree_in_sign": 24.5750352,
"degree_dms": "24 : 34 : 30",
"house": 9,
"nakshatra": "Mrigashira",
"nakshatra_lord": "Mars",
"pada": 1,
"speed": 14.258194,
"retrograde": false,
"combust": false,
"dignity": "mulatrikona",
"vargottama": false,
"pushkara": {
"navamsa": false,
"navamsa_number": 8,
"bhaga": false,
"bhaga_degree": 14,
"bhaga_by_element": false,
"bhaga_degree_by_element": 14,
"sources_agree": true,
"orb_degrees": 1
}
},
{
"name": "Mars",
"longitude": 27.7149328,
"sign": "Aries",
"sign_number": 1,
"degree_in_sign": 27.7149328,
"degree_dms": "27 : 42 : 54",
"house": 8,
"nakshatra": "Krittika",
"nakshatra_lord": "Sun",
"pada": 1,
"speed": 0.5753266,
"retrograde": false,
"combust": false,
"dignity": "own sign",
"vargottama": false,
"pushkara": {
"navamsa": true,
"navamsa_number": 9,
"bhaga": false,
"bhaga_degree": 21,
"bhaga_by_element": false,
"bhaga_degree_by_element": 21,
"sources_agree": true,
"orb_degrees": 1
}
}
],
"planetary_war": []
}Where the API returns it
| POST | /v1/planets | Planet positions and the ascendant |
| GET | /v1/sky | Planet positions at a moment, no chart |
| GET | /v1/sky/events | Calendar of sky events, no chart |
| POST | /v1/avasthas | Planetary states (graha avasthas) |
| POST | /v1/varshaphal | The Tajik annual chart (varshaphal) for one year |
| POST | /v1/ascendant | The ascendant only |
What the API reference says
Each line is quoted from the reference page of the endpoint named above it.
- POST /v1/avasthas · Planetary states (graha avasthas)Vikala (with a malefic) and kopa (combust, too close to the Sun) are conditions.
Feature page: Planetary strength. 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.
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Your first answer
John Doe, New York
- RisingVirgoHast
- SunCancerAshlesha
- MoonTaurusMrigashira
- MarsAriesKrittika
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