sextant
funktionsloser schrott, schade für die 9.99€
$9.99
About
This app provides a comprehensive celestial navigation toolkit for sailors and enthusiasts. It allows users to navigate using celestial bodies like the sun, moon, planets, and stars, even when GPS is unavailable. The app guides users through taking sextant readings, performing calculations, and plotting positions on a map.
✓Celestial body identification using camera and ephemeris
✓Sextant sight reduction with manual correction checks
✓Offline celestial navigation
✓Noon sight for latitude calculation
✓Line of position plotting on a real map
✓Polaris one-shot latitude
✓Solar Compass for deviation checks
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What's New in Sextant
1.7
October 5, 2026
Earlier versions worked the hour angle on the wrong side of Greenwich, so sights taken anywhere but longitude 0 plotted in the wrong place. Sorry. This update fixes it and rebuilds the almanac: • Camera sextant: the level check no longer blocks sights above the horizon, and Sun and Moon sights use the centre of the disc you aim at • Sky tab: labels now sit on the bodies they name, and the heading shows where the camera points • Sight reduction tested against U.S. Naval Observatory data: within 0.2' for Sun, Moon, planets and all 58 stars • New almanac: VSOP87 planets, ELP-2000 Moon, star positions with precession and proper motion • Set your assumed position once, or take it from GPS; camera and noon sights use it too • Sextant altitude in degrees and minutes, time to the second • Running fixes: DR legs have a start time and only the run between sights is used • Tap a body on the Sky tab to start a sight on it, with a sextant or the camera • Polaris latitude solved exactly from your sextant reading; noon sight uses your Settings • Sights saved with earlier versions are worked again with the corrected calculation • A new icon
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FAQ
What is Sextant used for?
Sextant is a celestial navigation toolkit that helps users navigate by the sun, moon, planets, and stars, especially when GPS is unavailable. It guides you from taking a sextant reading to plotting a position on a map.
Does Sextant work offline?
Yes, Sextant works fully offline. All necessary astronomical data and calculations are available without an internet connection, making it reliable for remote navigation.
How does Sextant help with learning celestial navigation?
Sextant offers a guided walk-through for your first sight and provides inline help on every screen. Each correction in the sight reduction process is explained, allowing you to learn as you go and check calculations manually.
What celestial bodies can Sextant identify?
Sextant can identify the sun, moon, all four navigational planets (Venus, Mars, Jupiter, Saturn), and 58 standard navigational stars. It uses on-device ephemeris and magnetic compass data for identification.
Can I use Sextant with a real sextant?
Yes, you can type in your altitude readings from a real sextant, and the app will perform the reduction. Alternatively, you can use the app's camera feature to take sights.
What are the pricing details for Sextant?
Sextant is a paid app priced at $9.99. The purchase includes all features with no subscriptions or ads.
Does Sextant have ads?
No, Sextant is ad-free. The developer explicitly states 'No subscription. No ads. No internet. One purchase, everything included.'
On which devices can I use Sextant?
Sextant is supported on iPhones and iPads, making it accessible to a wide range of iOS users.
