# Orastra — Offline Celestial Navigation

> Offline Celestial Navigation (iPhone/iPad app by ABDULLAH CAGRI TAS.)

- Source: https://appshunter.io/ios/app/orastra/id6760255995 (this page in markdown: same URL + `.md`)
- Developer: [ABDULLAH CAGRI TAS](https://appshunter.io/developer/1864244623)
- Category: Navigation, Education
- Price: Free
- Age rating: 4+
- Requires: iOS 13.0 · 27 MB
- Languages: American English
- Released: 2026-03-12
- Data updated: 2026-08-23
- User reviews in markdown: https://appshunter.io/ios/app/orastra/id6760255995/reviews.md

## What is Orastra?

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.


## Version history (last 1 release)

### 1.0 — 2026-03-12

No release notes.

## More apps by ABDULLAH CAGRI TAS

- [ProxNode](https://appshunter.io/ios/app/proxnode/id6757021526)
- [KubeNode](https://appshunter.io/ios/app/kubenode/id6759807165)
- [BabyLive](https://appshunter.io/ios/app/babylive/id6760209040)
- [SwipeClean:Unlimited](https://appshunter.io/ios/app/swipecleanunlimited/id6761034478)
- [Cepte:Abonelik ve Gider Takibi](https://appshunter.io/ios/app/cepteabonelik-ve-gider-takibi/id6799283179)

All apps by ABDULLAH CAGRI TAS: https://appshunter.io/developer/1864244623

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-23.*