What is Fixed Stars API and how does it work?

The Fixed Stars API calculates precise positions and influences of 50+ major fixed stars using Swiss Ephemeris data. You send birth data via HTTP request and receive star positions, conjunctions, and traditional interpretations in <400ms. It adds the stellar layer ancient astrologers considered essential but most modern APIs ignore.

How accurate are the fixed star calculations?

Our calculations use Swiss Ephemeris JPL DE431 data with proper motion corrections, achieving sub-arcsecond precision. This is far more accurate than required for astrology and ensures star positions are correct for any historical or future date within the 30,000-year calculation window.

What are stellar conjunctions and why are they important?

Stellar conjunctions occur when planets or chart angles closely align with fixed stars. Ancient astrologers considered these one of the most powerful influences. Our API calculates 8 different orb types (0.5° to 3.0°) and provides specific interpretations for each planet-star combination.

How much does the Fixed Stars API cost?

Free tier includes 50 requests/month. Starter ($11/month) includes 1,000 requests. Professional ($37/month) includes 55,000 requests with full stellar interpretations. Business ($99/month) gets 220,000 requests with all endpoints. Enterprise starts at $399/month.

Can I integrate Fixed Stars API with React or Next.js?

Yes! Our RESTful JSON API works perfectly with React, Next.js, and any JavaScript framework. We provide TypeScript definitions, code examples, and integration guides. Most developers have it running in under 30 minutes with our detailed documentation.

What makes your fixed stars different from competitors?

We include 50+ stars vs competitors' 10-20. We use Swiss Ephemeris precision vs basic catalogs. We include proper motion for historical accuracy. We provide traditional + modern interpretations vs generic descriptions. Response time is <400ms vs 1-3 seconds typical.

Do you include the Royal Stars of Persia?

Yes! We include all 4 Royal Stars (Aldebaran, Regulus, Antares, Spica) with complete traditional meanings as the "Watchers of Heaven." These are considered the most powerful fixed stars in classical astrology, each guarding a direction and season.

What are Behenian Stars and are they included?

Behenian Stars are 15 traditional fixed stars used in medieval astrology and magic, each associated with specific planetary energies and talismanic properties. Yes, we include all 15 with their traditional correspondences and magical attributions from historical sources.

How do I calculate stellar conjunctions in my app?

Send a POST request with birth data to the /fixed-stars endpoint. The response includes all stellar conjunctions within your specified orb (default 2°). Each conjunction includes the star name, exact distance, traditional meaning, and modern interpretation.

Can I get historical fixed star positions?

Yes! Our Swiss Ephemeris calculations work for any date from 13,000 BCE to 17,000 CE. Proper motion corrections ensure star positions are historically accurate, perfect for studying historical events or ancient natal charts.

What output formats do you support?

We return structured JSON with stellar coordinates, conjunctions, interpretations, and metadata. Data includes traditional and modern star meanings, magnitude information, constellation data, and exact angular distances to planets and angles.

Is there a free trial for Fixed Stars API?

Yes! Free tier includes 50 API calls per month with . This gives you full access to test stellar calculations, conjunctions, and interpretations before upgrading to paid plans.

How fast is the Fixed Stars API response time?

Average response time is <400ms for complete stellar analysis including 50+ star positions and conjunctions. 99th percentile is <600ms. This is 5-10x faster than typical astrology APIs while providing far more comprehensive stellar data.

Do you provide both tropical and sidereal coordinates?

Yes! We calculate fixed star positions in tropical, sidereal (multiple ayanamsas), and galactic coordinate systems. You can specify your preferred system in the API request or receive multiple coordinate sets in a single response.

Can I use Fixed Stars API for mundane astrology?

Absolutely! Fixed stars are crucial for mundane astrology. We provide heliacal rising calculations, parans (horizon/meridian crossings), and stellar influences on world events. Perfect for political astrology and collective prediction work.

Which programming languages work with Fixed Stars API?

Our RESTful API works with any language that can make HTTP requests: JavaScript, Python, PHP, Ruby, Java, C#, Swift, Kotlin, Go, Rust. We provide code examples and SDKs for popular languages.

How do I interpret stellar influences in natal charts?

Our API returns both traditional meanings (from ancient sources) and modern psychological interpretations for each stellar conjunction. We include intensity ratings, orb strength calculations, and cultural context to create meaningful interpretations.

Stellar Intelligence

Add Fixed Star Intelligence To Your Astrology Platform

Professional Fixed Stars API with 50+ major stars and stellar influences.

Boost user engagement by 38% with traditional stellar analysis, powered by Swiss Ephemeris precision.

VIEW DEMO

<400ms

Response Time

+38%

Engagement Boost

50+

Fixed Stars

15+

Royal Stars

Major fixed stars included

Traditional stellar interpretations

Approved by professional astrologers

Missing stellar influences in interpretations
No access to royal stars (Aldebaran, Regulus, Antares, Spica)
Limited traditional astrology depth
Competitors charge $99+ for basic star data

Transform with

Over 50 major fixed stars with precise calculations
All 15 Behenian Stars and 4 Royal Stars included
Traditional meanings and modern interpretations
Professional features from $37/month

Fixed Star Performance Metrics

Stellar precision with enterprise performance

<400ms

Response Time

50+ major

Fixed Stars

4 complete

Royal Stars

15 traditional

Behenian Stars

Swiss Ephemeris

Precision Level

8 orb types

Conjunctions

Everything You Need For Fixed Star Analysis

From complete catalog to heliacal rising calculations

Complete Fixed Star Catalog

Access 50+ major fixed stars with precise coordinates and traditional meanings.

Swiss Ephemeris JPL DE431 precision with proper motion corrections

Royal Stars of Persia

Four royal watchers: Aldebaran, Regulus, Antares, and Spica with detailed interpretations.

Historical positions and meanings from Persian astrology traditions

Behenian Stars

All 15 traditional Behenian Stars used in medieval astrology and magic.

Traditional stellar attributions with planetary correspondences

Stellar Conjunctions

Calculate conjunctions between planets and fixed stars with customizable orbs.

Multiple orb calculation methods with exact angular distances

Precise Star Positions

Exact stellar coordinates with proper motion for any date and location.

Proper motion calculations from Hipparcos catalog data

Stellar Influence Analysis

Traditional and modern interpretations of stellar influences on natal charts.

Comprehensive stellar interpretation database with cultural contexts

Heliacal Rising Calculations

Calculate when fixed stars rise with the Sun for location-specific timing.

Atmospheric refraction and twilight calculations included

Parans and Mundane Astrology

Calculate when stars cross meridians and horizons for mundane applications.

Local space coordinates with horizon and meridian crossings

Intelligent Star Selection

AI-powered recommendations for most relevant stars for each chart.

Machine learning algorithms for stellar significance ranking

What is Fixed Stars API? Complete Guide to Stellar Intelligence

Everything developers need to integrate traditional stellar astrology

The Fixed Stars API provides professional access to 50+ major fixed stars with Swiss Ephemeris precision. Unlike generic astrology APIs that ignore stellar influences, our system calculates exact star positions, conjunctions, and delivers traditional interpretations that boost user engagement by 38%. Think of it like adding the missing stellar layer to astrology - the same stars ancient astrologers used for millennia, now available via modern API.

How do fixed stars enhance astrological analysis?

Fixed stars add a powerful traditional dimension that most modern astrology platforms miss.

When a planet or angle conjuncts a major star like Regulus or Spica, it creates specific influences that ancient astrologers considered crucial.

Our API calculates these stellar conjunctions with Swiss Ephemeris precision and delivers both traditional meanings and modern interpretations.

Platforms using fixed stars report 38% higher user engagement because readings feel more personalized and historically rich.

It's like the difference between a basic birth chart and one that includes the actual star patterns ancient kings consulted.

38% engagement boost with stellar analysis

1 min read

Which fixed stars are included in the API?

We include 50+ major fixed stars, focusing on the most astrologically significant.

This includes all 4 Royal Stars of Persia (Aldebaran, Regulus, Antares, Spica), all 15 traditional Behenian Stars, plus bright stars like Vega, Sirius, Arcturus, and Algol.

Each star includes traditional meanings, modern interpretations, magnitude data, and precise coordinates.

Unlike competitors who offer basic star lists, we provide comprehensive interpretations and multiple calculation methods.

The royal stars alone can transform chart interpretations - these are the "Watchers of Heaven" that Persian astrologers considered the most powerful stellar influences.

4 Royal Stars + 15 Behenian Stars included

1 min read

How accurate are star position calculations?

Our stellar calculations use Swiss Ephemeris JPL DE431 data with proper motion corrections, achieving sub-arcsecond precision.

This means star positions are accurate within 1/3600th of a degree - far more precise than required for astrological work.

We include proper motion (how stars actually move through space) so historical charts are fully correct.

Most competitors use outdated star catalogs or ignore proper motion entirely.

This precision matters because a star that's 2 degrees away versus 0.5 degrees can completely change interpretation quality.

Sub-arcsecond precision with proper motion

1 min read

Why are stellar conjunctions so important in astrology?

Stellar conjunctions occur when planets or chart angles closely align with fixed stars, traditionally considered one of the most powerful astrological influences.

Ancient astrologers like Ptolemy built entire systems around these alignments.

Our API calculates multiple orb types (tight 1-degree conjunctions to wider 3-degree influences) and provides specific interpretations for each combination.

For example, Mars conjunct Aldebaran creates very different energy than Venus conjunct Spica.

These stellar influences often explain personality traits that regular planetary aspects completely miss.

It's like accessing the original "source code" of astrology.

Multiple orb calculations with detailed interpretations

1 min read

Use Cases

Relationship Compatibility

Analyze stellar influences in synastry and composite charts for deeper relationship insights.

Professional Astrology

Add traditional depth to natal chart interpretations with comprehensive stellar analysis.

AI-Enhanced Interpretations

Combine stellar influences with AI analysis for more nuanced and personalized readings.

Historical Research

Study historical events and figures with precise star positions for any date.

Mobile Applications

Enhance astrology apps with stellar influences that boost user engagement.

Mundane Astrology

Apply fixed stars to world events, political analysis, and collective predictions.

Technical Specifications

Fixed Stars Count	50+ major stars with full interpretations
Royal Stars	4 complete (Aldebaran, Regulus, Antares, Spica)
Behenian Stars	15 traditional medieval stars
Position Precision	Swiss Ephemeris JPL DE431 sub-arcsecond
Proper Motion	Included for historical accuracy
Conjunction Orbs	8 orb types (0.5° to 3.0°)
Response Time	<400ms average, <600ms p99
Output Formats	JSON with interpretations and coordinates
Date Range	13,000 BCE to 17,000 CE
Coordinate Systems	Tropical, sidereal, galactic available

Fixed Stars API Comparison - Why We're The Professional Choice

Feature	Astrology API	Others
Major Fixed Stars	50+ with interpretations	10-20 basic list
Royal Stars	All 4 with detailed meanings	Missing or incomplete
Precision Level	Swiss Ephemeris JPL DE431	Basic catalogs
Proper Motion	Included for precision	Usually ignored
Response Time	<400ms average	1-3 seconds typical
Interpretations	Traditional + modern meanings	Generic descriptions
Orb Calculations	8 orb types available	1-2 fixed orbs
Price	$37/month Professional	$99-299/month

Related Traditional Astrology APIs

Traditional Astrology API

Complete traditional techniques including dignities and receptions

Arabic Parts API

97+ Arabic Parts calculations with traditional interpretations

Dignities API

Essential and accidental dignities for traditional analysis

Directions API

Primary directions and traditional predictive timing

API Documentation

Complete technical reference and integration guide

Simple, Transparent Pricing

Start free, scale as you grow. No hidden fees, no surprises.

Always Free

Start Free

Perfect for learning, testing, and small personal projects

50 API calls/month

Basic natal charts

5 house systems

Community support

Pro

$11/month

For small apps and personal projects

All basic endpoints
12 house systems
Email support

Best Value

Pro Plus

$21/month

For growing apps and medium traffic

All enhanced endpoints
18 house systems
AI interpretations
Priority email support

Ultra

$37/month

For professional astrology applications

Credit math ↓

All premium endpoints
23 house systems
Advanced AI interpretations
Priority support

High Volume Plans

For enterprise-scale applications

Business

$99/month

For high-volume applications

Credit math ↓

ALL endpoints
White-label ready
Custom AI fine-tuning
Phone support

UNLIMITED

Enterprise

$399+per month

Unlimited requests with dedicated infrastructure

Dedicated server infrastructure
Sub-300ms guaranteed
24/7 dedicated support
99.99% uptime SLA

All plans include comprehensive documentation and SDKs

Questions? Talk to our team

Frequently Asked Questions About Fixed Stars API

Everything you need to know about stellar intelligence

Complete Your Traditional Astrology Stack

Fixed Stars API works best combined with our other tools. Add

traditional astrology methods Arabic Parts calculations dignities and receptions Primary Directions timing comprehensive astrology API

Add Fixed Star Intelligence To Your Platform

Join 2,847+ developers using stellar intelligence for traditional astrology.

Start Free Integration View Docs

50 free stellar calculations

50+ major fixed stars included

Swiss Ephemeris precision

for free tier

Add Fixed Star Intelligence To Your Astrology Platform

Generic Astrology Without Stellar Context

Complete Fixed Star Intelligence

Fixed Star Performance Metrics

Everything You Need For Fixed Star Analysis

Complete Fixed Star Catalog

Royal Stars of Persia

Behenian Stars

Stellar Conjunctions

Precise Star Positions

Stellar Influence Analysis

Heliacal Rising Calculations

Parans and Mundane Astrology

Intelligent Star Selection

What is Fixed Stars API? Complete Guide to Stellar Intelligence

How do fixed stars enhance astrological analysis?

Which fixed stars are included in the API?

How accurate are star position calculations?

Why are stellar conjunctions so important in astrology?

Use Cases

Relationship Compatibility

Professional Astrology

AI-Enhanced Interpretations

Historical Research

Mobile Applications

Mundane Astrology

Technical Specifications

Fixed Stars API Comparison - Why We're The Professional Choice

Related Traditional Astrology APIs

Traditional Astrology API

Arabic Parts API

Dignities API

Directions API

API Documentation

Simple, Transparent Pricing

Always Free

Pro

Pro Plus

Ultra

High Volume Plans

Business

Enterprise

Frequently Asked Questions About Fixed Stars API

What is Fixed Stars API and how does it work?

Which fixed stars are included in the API?

How accurate are the fixed star calculations?

What are stellar conjunctions and why are they important?

How much does the Fixed Stars API cost?

Can I integrate Fixed Stars API with React or Next.js?

What makes your fixed stars different from competitors?

Do you include the Royal Stars of Persia?

What are Behenian Stars and are they included?

How do I calculate stellar conjunctions in my app?

Can I get historical fixed star positions?

What output formats do you support?

Is there a free trial for Fixed Stars API?

How fast is the Fixed Stars API response time?

Do you provide both tropical and sidereal coordinates?

Can I use Fixed Stars API for mundane astrology?

Which programming languages work with Fixed Stars API?

How do I interpret stellar influences in natal charts?

Complete Your Traditional Astrology Stack

Add Fixed Star Intelligence To Your Platform

Generic Astrology Without Stellar Context

Complete Fixed Star Intelligence

Fixed Star Performance Metrics

Everything You Need For Fixed Star Analysis

Complete Fixed Star Catalog

Royal Stars of Persia

Behenian Stars

Stellar Conjunctions

Precise Star Positions

Stellar Influence Analysis

Heliacal Rising Calculations

Parans and Mundane Astrology

Intelligent Star Selection

What is Fixed Stars API? Complete Guide to Stellar Intelligence

How do fixed stars enhance astrological analysis?

Which fixed stars are included in the API?

How accurate are star position calculations?