Astrolog astrology calculator Icon

Astrolog astrology calculator

Astrology calculation, charting, and analysis

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Astrolog is astrology software featuring many types of computation, display, graphics, comparison, and analysis. It supports multiple environments, such as 16 and 32 bit Windows, with complete C source code available. For more information see the Web site:

Astrolog astrology calculator Web Site


  • Show planets, asteroids, Uranians, and fixed stars, with 8400 year ephemeris.
  • Compute 14 house systems, geo/heliocentric, ayanamsas, harmonics, decans.
  • Display wheels, aspect/midpoint, local horizon, rising/setting, astro-graph, etc.
  • Search transits, progressions, aspects over time, sign/direction changes.
  • Compare synastry, composite, time/space midpoint, and weighted influences.

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Additional Project Details

Intended Audience


User Interface

Command-line, Win32 (MS Windows), X Window System (X11)

Programming Language



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