Celestium

For Windows and macOS

Astrology software that grows with you.

From your first chart to in-depth astrological analysis. Celestium brings calculation, learning and research together in one calm, well-organised workspace.

Try free for 14 daysSee pricing

The sky right now

♈︎♉︎♊︎♋︎♌︎♍︎♎︎♏︎♐︎♑︎♒︎♓︎123456789101112☉☽☿♀♂♃♄♅♆♇ASCMC
19/09/2026 20:01 CEST · Amsterdam 52°22′N 4°54′E · Placidus · tropical
  • Sun26°49′ ♍︎
  • Moon06°28′ ♑︎
  • Mercury14°35′ ♎︎
  • Venus05°15′ ♏︎
  • Mars25°00′ ♋︎
  • Jupiter17°29′ ♌︎
  • Saturn12°26′ ♈︎Retrograde
  • Uranus05°39′ ♊︎Retrograde
  • Neptune03°10′ ♈︎Retrograde
  • Pluto03°13′ ♒︎Retrograde
  • Ascendant09°47′ ♈︎
  • Midheaven03°37′ ♑︎

This is where the sky stood when this page was built. In Celestium you do the same with your own birth details.

Astrology can be complex. The software does not have to be.

Astrology has many layers. That does not have to make the software complicated. Celestium keeps the chart at the centre and brings the options you need together in a logical, well-organised way.

  • Built to stay calm
  • Logically organised
  • Inviting to explore

First look

The chart comes first.

Open Celestium and get straight to work. What you need is close at hand; what you do not need stays out of sight.

Celestium showing a natal chart: wheel, positions and folder structure.
The chart is the heart of your workspace. People and folders stay neatly together, while positions and aspects are right there when you need them.

Celestium grows with you

Start with what you need. Grow further when you want.

Celestium is a full environment for learning astrology and putting it to work. When you want to go deeper, Celestium Pro adds further techniques for advanced analysis, professional use and research.

  1. First chart
  2. Everyday practice
  3. Deeper study & research
CelestiumCelestium Pro

Key capabilities

What you often need, within reach.

A first look at the charts, techniques and analyses you can work with in Celestium.

Creating new charts

  • Natal chart
  • Solar and lunar returns
  • Secondary progressions
  • Solar Arc directions
  • Horary chartPro

Combining & tracking

  • Synastry
  • Composite
  • CombinePro
  • Current transits
  • DavisonPro

Analysing & researching

  • Aspects and aspect patterns
  • Planet Patterns
  • DispositionsPro
  • Antiscia
  • Fixed starsPro

Pro marks Celestium Pro only. Everything else is in both editions.

See every technique

Learning and reference

Learning as you work.

Explanation and background are available right inside Celestium. Explore astrological concepts and the history of astrology without leaving your workspace. The explanations suit different levels of experience, so Celestium helps you not only calculate, but also understand. The history and the glossary are written in Dutch for now.

NederlandsEnglishDeutschFrançais

  • History
  • Explanations on the screens
  • ConceptsPro
  • Four languages

A taste of Pro

For going further.

Celestium Pro builds on the familiar Celestium workspace, with further techniques for deeper study, analysis, research and professional use.

See Celestium Pro

Astrocartography map with planetary lines across Europe, Africa and Asia.
Astrocartography (Celestium Pro): AC, DC, MC and IC lines per planet across the world map. Click a line for an explanation.

Try Celestium for fourteen days.

Find out for yourself whether Celestium suits the way you learn, research and apply astrology.

Try free for 14 days

  • 14 days
  • No payment details