Telosia
Astrology with Purpose

A place of purpose to know yourself and others

Telosia helps astrologers calculate natal charts, compare synastry, track transits, and review solar revolutions with Swiss Ephemeris precision.

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No credit cardFree to startPrecise Calculations
Swiss Ephemeris
Astrology with Purpose
Accurate calculations, responsive chart tools, and secure chart history.
Swiss Ephemeris
Encrypted Birth Data
English & Spanish UI
Saved Charts
Major planets, asteroids (Chiron, Ceres, Pallas, Juno, Vesta), nodes, and special points.
Telosia

What You Get

Accurate calculations, responsive chart tools, and secure chart history.

Telosia
Arc-Second Accuracy

Swiss Ephemeris calculations for natal charts, transits, synastry, and solar revolution workflows.

Telosia
Clean Chart Wheels

Responsive chart wheels, aspect lines, and detail views that stay readable on desktop and mobile.

Telosia
Transits & Year Overview

Track current transits, upcoming aspects, and yearly timing from saved natal charts.

Telosia
Private & Encrypted

Sensitive birth data is encrypted at rest and in transit, with saved charts tied to your account.

Telosia
English & Spanish

The public site and app are available in English and Spanish, with language preferences in account settings.

Telosia
Synastry & Solar Revolutions

Compare saved charts for compatibility and open solar revolution charts in the same workspace.

Three Steps

Three Steps

Start free, save your charts, and return for transits, synastry, and solar revolutions.

Get Started
01
Sign Up

Email only. No credit card.

02
Enter Birth Data

Date, time, and location.

03
Get Your Chart

Save charts, revisit transits, compare synastry, and explore solar revolutions.

What You Get with Telosia

What You Get with Telosia

AI-powered planet interpretations, fully available in English and Spanish.

Unlimited natal chart calculations using Placidus Tropical — the professional standard.
Major planets, asteroids (Chiron, Ceres, Pallas, Juno, Vesta), nodes, and special points.
Transits and Solar Revolutions — always in sync with your saved charts.
Aspects, Chart Balance, and contextual Help — layered views for deeper reading and learning.
Dynamic chart calculation you can freely adjust — a true sandbox for experimentation and study.
Year Summary surfacing the most significant astrological events of your year.
AI-powered planet interpretations, fully available in English and Spanish.
Guides & Resources

Guides & Resources

In-depth articles about astrology charts, compatibility, and transits.

Published February 14, 2026
Astrology Software: How to Generate a Birth Chart (Beginner Guide)
This guide explains what astrology software does, what information you need, and how to choose the right tool to generate accurate birth charts.
Read guide →
Published March 3, 2026
What Is a Synastry Chart? Astrology Compatibility Explained
Synastry is a technique in astrology used to analyze the relationship between two people by comparing their birth charts.
Read guide →
Published March 7, 2026
Astrology Transits: How Planetary Movements Affect Your Birth Chart
In astrology, transits refer to the current movement of planets and how they interact with a person's natal chart.
Read guide →
FAQ

FAQ

Birth time is essential for accurate house placements. Without it, you can use noon as an estimate, but houses will be approximate.

Ready for Your Chart?

Ready for Your Chart?

Start free, save your charts, and return for transits, synastry, and solar revolutions.

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