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Cygnus Documentation

Welcome to the documentation for Cygnus, a professional ephemeris application for generating precise planetary position data.

What is Cygnus?​

Cygnus generates accurate ephemerides -- tabular listings of planetary positions over user-specified time ranges. Whether you need geocentric, heliocentric, or topocentric planetary positions, Cygnus delivers precise calculations powered by the Swiss Ephemeris engine.

Key Features​

  • Geocentric Ephemerides: Planetary positions as seen from Earth's center
  • Heliocentric Ephemerides: Planetary positions as seen from the Sun
  • Topocentric Ephemerides: Planetary positions adjusted for a specific observer location on Earth
  • Aspect Ephemerides: Angular relationships between celestial body pairs over time
  • Configurable Parameters: Choose date ranges, time intervals, celestial bodies, and output metrics
  • Preset System: Save and reuse common configurations across studies
  • Export to CSV: Save generated data for use in spreadsheets and external tools
  • Cross-Platform: Available for Windows and macOS

Documentation Sections​

Browse the documentation using the sidebar to learn about:

  • Getting Started: Learn the main window layout, workspace management, and study navigation
  • Ephemeris Studies: Create and configure geocentric, heliocentric, topocentric, and aspect ephemeris studies
  • Configuration: Manage presets, default settings, locations, and application theme
  • Reference: View application information, keyboard shortcuts, and status indicators

Getting Help​