Eclipse Calculator 2

Eclipse and Astronomy app

Free · Designed for iPad. Not verified for macOS.

Whether you're an astronomy enthusiast, eclipse chaser, or curious observer, this app lets you explore, calculate, and simulate solar eclipses, lunar eclipses, and planetary transits with remarkable detail. Discover when and where future eclipses will be visible, how they will appear from your location—or anywhere else on Earth—and explore historical events spanning centuries. From global visibility maps to detailed local circumstances, everything you need to plan and enjoy these extraordinary astronomical events is at your fingertips. Key Features: • Complete database of all solar eclipses, lunar eclipses, and planetary transits from 1900 to 2100, with an optional extension covering 1550 to 2300. • Detailed calculations of the general circumstances for every event, including global visibility maps. • Accurate local circumstances for any location worldwide, including contact times, duration, Sun or Moon altitude, and other observational data. • Interactive maps showing eclipse visibility and local conditions. • Realistic simulations of eclipses and planetary transits from your chosen observing location. • Animated simulation of the Moon's shadow crossing Earth's surface during solar eclipses. • Animated simulation of the Moon passing through Earth's shadow during lunar eclipses. • Choose any observing location using GPS, a built-in location database, or manual coordinates. • Lunar limb profile and Baily's Beads calculations for advanced eclipse observation. • Sky simulation during totality. • Continuous GPS tracking with live updates of contact times—ideal for observing from moving locations such as ships. • Add eclipses and planetary transits directly to your personal calendar. • Built-in countdown timer for upcoming events.

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The developer, Eduardo Masana, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

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    Accessibility

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    Information

    Seller
    • Eduardo Masana
    Size
    • 92.1 MB
    Category
    • Utilities
    Compatibility
    Requires iOS 16.0 or later.
    • iPhone
      Requires iOS 16.0 or later.
    • iPad
      Requires iPadOS 16.0 or later.
    • Mac
      Requires macOS 13.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © Eduard Masana, Institut d’Estudis Espacials de Catalunya (IEEC)
  • Privacy Policy