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Software · Education & science

Asteria

Asteria is a calculator, available on Linux.

  • Completely free
  • Linux
  • Open source

At a glance

Asteria is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (AGPL-3.0+) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

  • Open source code
  • Commercial use allowed

About

Asteria is a comprehensive astrological chart application that combines traditional astrology with modern AI technology. Features: Calculate and display natal charts with precise planetary positions Analyze aspects between planets with detailed interpretations View planetary positions by house and sign Examine element and modality distributions Generate AI-powered chart interpretations for deeper insights Calculate transit charts to see how current planetary positions affect your natal chart Clean, intuitive interface for both beginners and experienced astrologers Composite, Davison, and Synastry relationship charts Return charts for Sun, Moon, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto Secondary progression charts Solar and lunar eclipse calculations Zodiac Signs chart with magazine-style horoscopes Customizable aspect orb slider and additional celestial bodies (Lilith, Ceres, Pallas, Juno, Vesta, Vertex, East Point, Part of Spirit) Aspect Display Settings for customizing aspect line thickness and style Display Settings for chart size, wheel thickness, planet size, glyph size, and UI font size Multi-provider AI support including Mistral, OpenAI, Groq, Ollama, and Gemini Transit, Aspect, and Synastry filters for detailed data exploration Julian/Gregorian calendar toggle for dates before 1582 Export charts as PNG, SVG, PDF, or text Share charts with watermark via social dialog Multi-window support with drag-and-drop between windows OpenStreetMap-based location picker AI response language selection including English, Spanish, French, German, Italian, Russian, Greek, Portuguese, Hindi, Chinese, and Arabic Available for Linux, Windows, macOS, and Flatpak

Description from Flathub — AppStream (Flathub)

Sources and checks

  • Facts collected from Flathub (credit card, source code, publisher, licence, free status, platforms, commercial use, version) —
  • Last technical check: 7 November 2026
  • Description from Flathub — AppStream (Flathub)

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