Astro Transit
Astronomical Transit Times
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Plan your observing sessions with accurate transit times and visibility tools.
Astro Transit is a simple application for calculating meridian transit times, transit altitude, and target visibility for astronomical objects from any observing location.
Targets are resolved automatically using the SIMBAD astronomical database operated by the Centre de Données astronomiques de Strasbourg (CDS), France, or entered manually using coordinates (useful for newly discovered transients, novae, etc.).
The application also provides sunset, nautical twilight, sunrise, and moon illumination information for the selected date.
A multi-target interactive visibility curve feature shows how a target’s altitude changes through the night, helping observers visualise the best time to observe consecutive targets.
Astro Transit is designed as a quick planning aid for advanced amateur and professional astronomical observation.
Ratings & Reviews
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Added support for iOS 18. Improved compatibility and stability.
The developer, Paul Luckas, 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.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Paul Luckas
- Size
- 3.3 MB
- Category
- Utilities
- Compatibility
Requires iOS 18.6 or later.
- iPhone
Requires iOS 18.6 or later. - iPad
Requires iPadOS 18.6 or later. - Mac
Requires macOS 15.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.6 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Buy me a coffee $0.99
- Copyright
- © 2026 Paul Luckas