Symbolic interpretation
MidCaelum approaches natal charts as symbolic structures for reflection, personality exploration, and understanding.
Astrology software for macOS
MidCaelum
Version 1.4 is now available.
Version 1.4 available now • Free update for registered users • macOS 12.6 or later • Apple notarized
What’s new in version 1.4:
- Full support for macOS Light and Dark appearances
- New appearance preference: System, Dark, or Light
- Improved contrast and appearance of windows, panels, dialogs, and aspect tables
- New tables for dominant planets and distributions by mode, element, and polarity
- Optional display of the Zodiacal Yi King in the Miscellaneous panel
- Automatic selection of a suitable color kit on first launch
MidCaelum in Light and Dark appearances
Chart interpretation
MidCaelum helps explore the structure of a natal chart through signs, houses, aspects and core symbolic configurations. You can also customize all interpretation texts to match your own approach. Its purpose is to offer a nuanced reading of personality and symbolic dynamics.
Current sky
Instantly display the current sky for your location and explore planetary positions in real time. A simple way to connect symbolic interpretation with the present moment.
Calculations and tools
It combines accurate calculations, a large built-in atlas, multiple house systems, and integrated interpretations in a polished desktop workflow.
Local operation
No account is required. Core chart calculation and built-in interpretation features work locally on your Mac.
Screenshots
Click any screenshot to view it in full size.
Most charts shown here use fictional data and illustrative portraits for demonstration purposes. The chart of C.G. Jung is included as a historical example.
Main features
MidCaelum combines precision, flexibility, and a desktop-first experience.
Calculation and chart tools
- Dynamic Chart
- ChartClock
- Instant “Here & Now” chart for the current sky
- High-precision astronomical calculations
- Tropical and sidereal charts
- Multiple house systems
- Major and minor aspects
- Retrograde motion indicators
- Optional objects such as nodes, Black Moon and main asteroids
- Built-in atlas and time-zone management
Interpretation workflow
- Built-in interpretation texts stored locally
- Fully editable interpretation texts (customize every meaning)
- Available in 6 languages
- Works offline for core use
- Optional web exploration of individual chart elements
- Designed for clarity rather than overload
Your own interpretation library
A flexible system designed to preserve MidCaelum’s original texts while giving you complete freedom to develop your own approach.
MidCaelum has a fully user-editable interpretation system. It includes a built-in library of astrological interpretations, available in all six languages in which MidCaelum is localized, that always remains intact. You can edit, expand, translate, or create your own interpretations, which are stored separately and automatically take precedence over the built-in versions without ever modifying the original library.
Your personalized interpretation library can be exported, shared, imported, or removed at any time, instantly restoring the original interpretations.
With this system, you can progressively build and maintain your own portable interpretation library, reflecting your own language, writing style, or astrological practice.
Video
A short preview of MidCaelum in use.
Unregistered mode
Without registration, chart dates are limited to the year 2000.
Usage without license
The application is fully functional, but without a license it is limited to charts for the year 2000. This allows you to discover the interface, workflow, and main features before unlocking all dates.
License activation
Registration unlocks the full date range with a one-time purchase. No subscription is required.
Download MidCaelum
Version 1.4 is now available.
Digitally signed by PasHart Software and notarized by Apple
Native application for macOS 12.6 or later.
Native application for macOS 12.6 or later.
macOS 12.6 or later • Apple notarized • One-time purchase
Licensing
Unlock all dates and features with a one-time license (€24.99).
No subscription. No account required.
Secure payment via Stripe. Your license key will be sent by email within minutes.
About
MidCaelum is developed under PasHart Software.
It is designed with a background in mathematics, computer science, and astronomical software development, with a focus on clarity, interpretation quality, and user autonomy.
The project reflects a deliberate approach: offering a structured and thoughtful way to explore natal charts, with a focus on clarity, symbolic interpretation, and user autonomy.
MidCaelum in brief
Platform: macOS (version 12.6 or later)
Distribution: Direct download, notarized by Apple
Publisher: PasHart Software
Approach: symbolic and personality-oriented
Privacy: your data stays on your Mac. No account required.
Languages: English, French, German, Italian, Spanish, Portuguese (Brazil)
FAQ
Does MidCaelum require an internet connection?
No. Chart calculations and built-in interpretation texts work entirely offline on your Mac.
What is the date range of MidCaelum?
In the licensed version, MidCaelum supports chart calculations from January 2, 1700 at 00:00 UTC to December 31, 2200 at 00:00 UTC. This range was chosen to ensure reliable calculation accuracy.
Is there a subscription?
No. MidCaelum is a one-time purchase with no subscription required.
Can I try it before purchasing?
Yes. The application is fully functional before registration, with chart exploration limited to the year 2000 until registered.
How is my data handled?
MidCaelum is designed to work locally on your Mac. For more details, please read our Privacy Policy.
Is MidCaelum safe to download outside the Mac App Store?
Yes. The version available from this website is the official MidCaelum edition distributed directly by PasHart Software. It is digitally signed with an Apple-issued Developer ID certificate and notarized by Apple for macOS. This allows macOS to verify the application’s developer identity and notarization status during installation. Updates are provided directly by PasHart Software.