Celestaire Astra IIIB Deluxe Sextant

£749⁰⁰

VAT included

Horizon Mirror

Whole Horizon Split Horizon

Product variants

Delivery Information

We aim to dispatch all orders by the next business day, but we're a small business and sometimes when it's busy it may take a little bit longer. If there's going to be any delays we'll get in touch and keep you up-to-date.

Shipping is free for all orders of £50 or more!

We work with Royal Mail, DPD and DHL to offer the most convenient delivery options to our customers.

Friendly Advice

Chris is a Master Mariner and knows a thing or two about seafaring. If you need any help then don't be shy - send us an email or get in touch using the WhatsApp icon.

Easy Returns

Not what you were looking for? No problem. We can accept returns of items in as-sold condition for up to 30 days (maybe a bit longer but don't tell anyone).

Just let us know and we'll sort everything out, including the shipping cost back to us.

Unfortunately this doesn't apply to Print on Demand charts as they are correct at the time of printing.

Of course if there's any faults or damage then let us know and we'll make it right!

Reach for the Stars with Confidence

An affordable and accurate sextant for celestial navigation

Reach for the stars (literally!) with the Celestaire Astra IIIB Deluxe Sextant. This isn't your grandad's dusty old sextant; it's a modern marvel of celestial navigation that's both affordable and incredibly accurate.

Forget those pricey, museum-piece sextants that cost more than your dinghy. The Astra IIIB has revolutionized celestial navigation, offering exceptional quality and precision without breaking the bank. In fact, it's so popular that over 24,000 have been sold in the US alone!

Why choose the Astra IIIB?

Affordable excellence: Get top-notch accuracy and quality without the hefty price tag of other professional sextants.
Lightweight and easy to use: Crafted from lightweight aluminium alloy, it's a joy to hold, even during those long stargazing sessions.
Crystal-clear optics: Features high-quality mirrors and shade glasses for precise celestial observations.
Versatile and adaptable: Choose from a range of horizon mirrors and accessories to suit your needs and experience level.
Built to last: Durable construction and rigorous testing ensure this sextant will be your trusted companion for years of celestial navigation.

More than just a sextant, this is:

Your gateway to celestial navigation: The perfect choice for beginners, offering exceptional value and ease of use.
A reliable backup for professionals: Even seasoned navigators appreciate the Astra IIIB's accuracy and portability.
A connection to the stars: Unlock the secrets of celestial navigation and experience the thrill of finding your way by the stars.

Whether you're a seasoned navigator or a curious beginner, the Celestaire Astra IIIB Deluxe Sextant is your key to unlocking the wonders of celestial navigation.