Your place. Your time.
Birth positions use verified coordinates and the historical timezone at your birthplace.
CALCULATED DATAYOUR PERSONAL OBSERVATORY
Your Birth Chart.
A new perspective.
The sky at the moment you arrived. Discover your Sun, Moon and Rising, then explore your full birth report or return for daily, weekly and monthly personal readings.
Free Big Three calculation · No account or card needed
Explore daily, weekly & monthly readings →10Chart placements
LocalHistorical timezone
ClearCalculation methods
THE SOLAR SYSTEM / AN INTERACTIVE STUDY
SIMULATION · TODAY
Move through the days. Watch the planets.KEPLERIAN MODEL
01 / A PLACE TO BEGIN
Meet your
celestial signature.
Start with the three placements at the heart of your chart. Your exact birth time and location help us calculate the picture.
FREE CALCULATION
Birth Chart & Big Three
Calculate your Sun, Moon and Ascendant with geocentric positions and historical timezone conversion.
SUN-SIGN PREVIEW
Sun-sign compatibility
Explore the elemental relationship between two Sun signs. A simple reflective preview, rather than a full synastry report.
02 / A CLEARER VIEW
Wonder, with clarity.
Astronomical calculations establish the chart. Symbolic interpretations offer a space to reflect. We keep the distinction visible.
A method you can see.
Read the calculation labels, planetary positions, house system and aspect orbs alongside your result.
TRANSPARENT METHODSRoom for reflection.
Interpretations and prompts are symbolic. Explore them at your own pace, with your own perspective.
REFLECTIVE ASTROLOGYASTRONOMINALPERSONAL REPORT
A map of
your beginning.
Birth Chart Report · Sample
CALCULATED DATA01 / 04
03 / YOUR CHART, TO KEEP
Know what you are buying.
Make it personal.
A four-page Birth Chart Report generated from your saved birth details. Thoughtfully organized, with calculated chart data and symbolic interpretation visibly separated.
- Ten placements and whole-sign houses
- Major aspects with visible orbs
- Element and modality counts
- Interpretations and reflection prompts
Checking priceNo recurring charge · Permanent account access
A PERSONAL MONTHLY RHYTHM
The same sky.
A month that is yours.
Your saved birth chart meets the moving sky. Return daily for fresh perspective, weekly for a focus, and monthly for a complete guide with dated transits and a PDF you can keep.
Explore the monthly membership →Calculated dates and angles are labeled separately from symbolic themes and reflection prompts.
A daily perspective.
Read personal highlights against your saved birth chart, with Sun, Moon and rising-sign context.
A focus to revisit.
A weekly overview brings dated transits and reflection prompts into a manageable rhythm.
A guide to keep.
Your personal monthly overview and transit calendar can be saved to your archive and printed or exported as PDF.
04 / SIMPLE BY DESIGN
Explore freely.
Choose your rhythm.
Begin free. Keep a complete birth report, or return for personal monthly guidance. Choose the format that fits you.
05 / QUESTIONS, ANSWERED
A few things
worth knowing.
About calculations, interpretations and your report.
What is Astronominal and how does it work? ▾
Astronominal combines an interactive solar-system simulation with geocentric birth-chart calculations and clearly labeled astrological interpretations for reflection and entertainment.
How is the Planetary Orrery calculated? ▾
The visual orrery uses a Keplerian J2000 orbital model for an educational view of planetary motion. Birth-chart Sun, Moon and Ascendant results use a separate geocentric calculation with the selected location and historical timezone.
Is the Birth Chart and Big Three calculator completely free? ▾
Yes. You can calculate your Sun sign, Moon sign, exact Ascendant (Rising sign based on geographical birth coordinates and Greenwich Sidereal Time), and elemental balance free with on-screen results and no credit card required.
How does Relationship Synastry & Compatibility calculation work? ▾
The free compatibility preview compares Sun-sign elements. Full synastry reports are interpretive tools that require exact birth times and locations for both people; they are not scientific measures of relationship success.
Will my purchased report remain available?▾
Yes. The purchase is stored as a server-verified entitlement on your account. Sign in to open a newly generated copy from My Reports whenever you need it.
How does the monthly membership work?
Stellar — Personal Readings offers monthly or annual recurring billing. It includes Birth Chart Report access while your membership is active. It uses your saved birth details for daily, weekly and monthly personal readings, with Sun, Moon and rising-sign context, dated transits, plus a monthly PDF and saved monthly editions. A separate one-time Birth Chart Report purchase gives permanent access.
What happens if I cancel?
Manage future monthly or annual renewals from Account & Plan. Access to new readings and the included birth report continues until your paid period ends. Editions already saved in your account archive remain available after the subscription ends.
YOUR CHART, YOUR PACE
A moment in the sky.
A starting point for you.
Begin with your Sun, Moon and Rising. See what you discover.
Calculate My Big Three ↗