Vincenta transforms the TI-Nspire™ CX graphing calculator into a dependable electronic celestial navigation system for offshore sailors, instructors and professional navigators.
Satellite navigation has transformed offshore navigation, yet prudent seamanship still demands an independent means of determining position whenever GNSS cannot be relied upon.
Vincenta combines the timeless principles of celestial navigation with modern computing power to create a practical, dependable celestial navigation system for today's sailor.
Designed specifically for offshore sailors who value dependability, simplicity and independence.
Sight reduction, running fixes, navigation triangles, sky plot, star and planet identification, sight analysis, sight and log data management, and more.
Operates entirely without an Internet connection and independently of GNSS. No surprises with forced system updates while in operation.
Exceptional battery life, fast start-up, rugged, dependable, and distraction free.
Vincenta was conceived around one simple principle: an emergency navigation system should be as dependable as the sextant it accompanies.
Rather than relying on a smartphone or tablet, Vincenta runs on the TI-Nspire™ CX graphing calculator — a dedicated, low-power computing platform with exceptional battery endurance, fast start-up and no background applications competing for attention.
Celestial navigation has a reputation for being difficult. Vincenta was designed to make it approachable without compromising the underlying principles.
Clear menus, guided workflows and graphical tools help you move naturally through every stage of the navigation process. Whether you are taking your first sextant sight or already have years of experience, Vincenta lets you concentrate on understanding the navigation rather than performing repetitive calculations.
Every screen has been designed for rapid use under real navigational conditions.
Access every navigation function from one clean and intuitive menu.
Identify celestial bodies instantly using an intuitive graphical representation of the sky.
Plan observations, find best triads, identify objects and constellations, measure angular distance between objects, and visualise the heavens before stepping on deck.
Construct accurate running fixes with a graphical and numerical method, including intercept calculations, LOP, fix uncertainty analysis, panning and zooming plot, saving results in log folders.
Use Vincenta's powerful sight analysis tool to analyse a round of sights, apply dedicated functions for local apparent noon analysis, exclude sights from calculations, save the best sights, and more.
Stay organised by saving and grouping sight reductions into individual folders, while arranging your archive to suit your workflow.
Organise your dead reckoning, estimated points, and fixes in log folders to suit your style of logging.
Vincenta performs all astronomical calculations internally. Once installed on your TI-Nspire™ CX, it provides the astronomical data and computational tools required for celestial navigation without relying on external resources.
For navigation, all you need is:
No paper Nautical Almanac, sight reduction tables or Internet connection are required with Vincenta.
When a star or planet appears through a brief gap in the cloud, there may be no time to identify it before taking a sextant observation.
With Vincenta, that's not a problem. Record the sight first, then use the Body Identification tool to identify the observed star or planet from its approximate bearing and measured altitude. Once identified, simply perform the sight reduction using the correct celestial body.
Modern satellite navigation has transformed offshore voyaging and remains the primary means of navigation for most sailors.
Nevertheless, prudent seamanship has always encouraged carrying an independent means of determining position. Vincenta complements the traditional sextant by replacing the repetitive astronomical calculations, allowing you to focus on taking good observations and interpreting the resulting fix.
It does not replace navigational knowledge — it puts powerful computational tools into the hands of the navigator.
Learn More"When satellites disappear, the stars remain."
Transform your calculator into a complete electronic celestial navigation computer.
Purchase Vincenta