Track All 9 Planets in <10ms Real-Time

Planetary positions are the exact locations of planets in the zodiac at any moment.

Measured in degrees, minutes, and seconds along the ecliptic (the path planets follow).

Example: "Sun at 15° Aries 23' 12"" means the Sun is 15 degrees, 23 arc-minutes, 12 arc-seconds into the Aries sign.

Why does this matter? In astrology, WHERE a planet is determines WHAT it influences.

Sun in Aries = confident, pioneering energy.

Sun in Pisces = compassionate, dreamy energy.

For birth charts, you need positions at birth moment.

For daily horoscopes, you need TODAY'S positions.

For transit predictions, you compare current positions to natal positions.

Planets change positions constantly - Moon fastest (13°/day), Saturn slowest (0.03°/day).

Apps using stale data give wrong predictions.

Like using yesterday's weather forecast for today - useless.

Our API tracks all 9 planets 24/7 using Swiss Ephemeris (NASA JPL data) - same calculation engine NASA uses.

Response time 2-7ms means your users get instant accurate data, not "loading..." delays.

Essential for any serious astrology app.

Accurate planet tracking requires three things: (1) Astronomical ephemeris data - we use Swiss Ephemeris based on NASA JPL planetary theories, (2) Precise time calculations - planets move by the second, not just by day, (3) Coordinate system conversion - tropical vs sidereal zodiac with 12 ayanamsa systems.

Here's how it works: Swiss Ephemeris contains mathematical formulas (not tables) to calculate planetary positions for ANY date/time from 3000 BC to 3000 AD.

When you request "planet positions on January 5, 2025 at 3:42 PM UTC", our API calculates exact ecliptic longitude (degree position along zodiac belt), declination (north/south of celestial equator), and distance from Earth.

Then converts to whichever zodiac system you need - tropical (seasons-based, used in Western astrology) or sidereal (star-based, used in Vedic astrology).

We support 12 ayanamsa systems including Lahiri, Raman, Krishnamurti.

The difference is about 24 degrees currently due to precession of equinoxes.

Manual calculation requires ephemeris books, interpolation between dates, coordinate conversions - takes 5-10 minutes per planet.

Our API does all 9 planets in 2-7ms with 0.001° accuracy.

Professional software like Solar Fire uses same Swiss Ephemeris engine - we just make it accessible via API in 13 languages (8 Indian + 5 European).

Tropical zodiac (Western astrology) fixes 0° Aries to the spring equinox - when day and night are equal length.

So tropical Aries ALWAYS starts around March 20-21.

Sidereal zodiac (Vedic astrology) fixes 0° Aries to actual star constellations.

But Earth wobbles on its axis (precession), so the equinox point drifts backward through the constellations at about 1° every 72 years.

Currently, the tropical and sidereal zodiacs are about 24° apart.

This gap is called "ayanamsa".

We support 12 ayanamsa systems - Lahiri, Raman, Krishnamurti (KP), and more.

Practical example: If tropical Sun is at 10° Aries, the sidereal Sun (using Lahiri ayanamsa) would be around 16° Pisces.

Your Western sun sign could be Aries, but Vedic sun sign could be Pisces.

Our API calculates BOTH systems.

Specify ayanamsa: null for tropical or ayanamsa: "lahiri" for sidereal.

You can even get both in one response - useful for apps serving global users (Western popular in US/Europe, Vedic popular in India).

No need to integrate two separate APIs.

One call, both systems, 2-7ms response.

Competitors force you to choose Western OR Vedic - we give you both with 12 ayanamsa options.

Planets move at vastly different speeds.

Moon: 13° per day (changes zodiac sign every 2.5 days).

Sun: 1° per day (changes sign monthly).

Mercury: 1-2° per day when direct, appears to move backward during retrograde.

Venus: 1° per day average.

Mars: 0.5° per day average.

Jupiter: 0.08° per day (5 arc-minutes).

Saturn: 0.03° per day (2 arc-minutes).

Rahu/Ketu (lunar nodes): move backward at 0.05° per day.

For daily horoscopes, update once per day at midnight (Moon position matters most).

For real-time transit alerts ("Moon entering your 7th house NOW"), update every few hours.

For birth chart calculations, one-time fetch at birth moment.

For astro-weather dashboards showing "planets right now", update every 15-60 minutes.

Our API is designed for high-frequency requests - cached for 5 minutes (planetary positions don't change significantly in 5 min), so you can call every minute without performance hit.

Unlike ephemeris books that publish daily positions at midnight, our API calculates for ANY time - if you need positions at 3:42 PM on a specific date, you get exact positions for that moment, not midnight approximation.

Critical for precise timing work.

Transit = where planets are NOW vs where they were at your birth.

Example: you were born with Sun at 10° Aries.

Today, transiting Jupiter is at 10° Aries - that's a Jupiter Return (happens every 12 years).

Major life expansion period.

Or transiting Saturn is opposite your natal Moon - challenging emotional period.

Apps use transits for: (1) Daily predictions - "Mars transiting your 10th house: career boost this week", (2) Alert systems - "Venus entering your 7th house tomorrow: great for romance", (3) Major transit tracking - Saturn Return, Jupiter Return, Uranus Opposition at age 42.

To implement: fetch user's birth chart (natal positions) once, store it.

Then call our API daily/hourly for current positions.

Compare current to natal: conjunction (0°), opposition (180°), trine (120°), square (90°), sextile (60°).

Generate predictions based on aspects.

Professional tier ($37/mo) includes transit calculation endpoint that does comparison automatically - you send natal data + current date, get back all active transits with interpretations.

Way easier than coding aspect detection yourself.

Response includes orb (how exact the aspect is), applying/separating (is aspect getting stronger or weaker), peak date (when aspect is exact).

Essential for timing-based predictions.

Integration is simple: 3 steps.

(1) Get API key - free tier includes 100 requests/month, no credit card.

(2) Make POST request with date/time and location (location needed for house positions, optional for basic planet positions).

(3) Parse JSON response with planet data.

Example code: const response = await fetch(API_URL, {method: "POST", headers: {Authorization: "Bearer API_KEY"}, body: JSON.stringify({year: 2025, month: 1, day: 5, hour: 15, minute: 42, latitude: 40.7, longitude: -74.0})}); const planets = await response.json(); console.log(planets.sun.longitude); - done! Response includes for each planet: longitude (degree position), sign (Aries/Taurus/etc), degree within sign, retrograde status, speed (daily motion), declination, distance from Earth.

Use cases: (1) "Planets Today" widget - show all current positions, (2) Retrograde tracker - filter planets where is_retrograde: true, (3) Sign change alerts - compare yesterday's sign to today's sign, (4) Birth chart generator - store positions at birth time.

We provide SDKs for JavaScript, Python, PHP with helper functions.

Takes 2-3 hours to integrate vs 3-6 months to build astronomical calculations yourself.

Focus on your app's unique features, let us handle the complex math.