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5.0 based on 1000+ Happy Sailors

Astro in a Day

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Need to brush up on astro-navigation? This one day course in Southampton will guide you in the right direction.


This shore-based course is perfect for anyone who may have done an RYA Yachtmaster Ocean Theory course a few years ago, knows how to sail, and knows how to shoot sights, but would like more practise or a refresher on the principles and calculations of it.

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Key Course Details

Here’s a breakdown of the most important information about the Astro in a Day:

Required Experience

Required Experience

Course Duration

Course Duration

Course Content

Course Content

Skills Gained

Skills Gained

Astro in a Day -
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What to Expect

What to Expect

The day will focus will be on the forms, almanac and sight reduction tables; the computational journey from that point of acquiring the celestial object's declination to 'the fix' that is the difficulty for most of us, the right tables, the plusses and the minuses, the variable corrections, the assumed position, the 'to' or 'away' processes. It is assumed you know how to use a sextant.

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This one-day course in Southampton is run by an RYA Shore-based instructor, to help students to refine their skills in celestial navigation and plotting. Whether you're preparing for an upcoming trip, simply seeking more information or just enjoy navigating, this course is for you!

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What Sailors Say About Us

Tripadvisor5.0 based on 561 Happy Customers On Tripadvisor
Google Reviews5.0 based on 323 Happy Customers On Google Reviews

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