Orastra
Offline Celestial Navigation
Free · Designed for iPad. Not verified for macOS.
Offline celestial navigation tools with map-based fix plotting, almanac access, DR workflow, and GPS shown only as a separate reference overlay.
Orastra is an offline celestial navigation aid for mariners, students, and anyone learning practical sight reduction workflows.
Plan and review observations, work from a dead reckoning reference, inspect almanac material, and plot celestial fixes on a single map-based interface. Orastra is designed to keep celestial reduction separate from GPS, so any GPS position shown in the app remains a reference overlay only and is not part of the reduction itself.
Features:
Offline celestial navigation workflow
Dead reckoning reference and running-fix support
Map-based plotting for DR, celestial fixes, and reference GPS
Almanac access and onboard reference material
Sky guide and time tools for observation planning
Logbook for saving and reviewing fixes
Navigation aid only. Results depend on observation quality, timing, and correct operational use. All inputs, outputs, and navigational decisions must be independently verified.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, ABDULLAH CAGRI TAS, 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
- ABDULLAH CAGRI TAS
- Size
- 28.6 MB
- Category
- Navigation
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 | Cagri Tas