In this concise, two-day practicum in the theory and practice of Celestial Navigation, the methods commonly utilized—primarily the sun, but also the moon, planets and stars—will be laid bare and made clear.
Sights of the sun will be taken (weather permitting) with a simple sextant provided for you to take home, and sight reduction and plotting the resulting Lines of Position will complete the process. You will leave with enough knowledge to enable you to take and reduce your own sights and to plot your charted position.

These methods have been developed over centuries to allow normal people without any particular mathematical background to become effective navigators. And they still work today! In simplest form the processes are completed by the use of look-up tables. We will cover all of that, but also offer insight into more sophisticated methods using hand calculators and computers.

The necessary materials will be provided for you to use and take home – a simple Davis sextant, a current almanac, sight reduction forms, plotting sheets, and a CD of the course materials. We ask that you bring along a pencil and eraser, perhaps a set of dividers and tablet of paper. Please also bring your interest and curiosity.

Instructor; Nate Hazen, Engineer, Sailor, National Chapman Award Winning Instructor for US Power Squadrons

Times: Saturday & Sunday, Sept. 7 & 8, 9:00am-4:00pm both days including question and answer time at the end of each day. Lunch will be provided daily. This workshop will take place in the Tyco Visitor Center at Strawbery Banke Museum.

Cost: Tuition $195 Strawbery Banke Museum members (please contact us for the discount code); $215 non-members.
           Materials Fee*: $125, includes 2019 Nautical Almanac, Davis MK 3 Sextant, Planisphere Star Finder, & a CD-Rom with full instructional PowerPoint presentations.

Space is limited. Register by August 15.

*Please contact us about a materials discount if you have a sextant, star finder or nautical almanac you plan to bring to use during the class.

For information on other upcoming Boatshop at Strawbery Banke workshops and programs visit

Venue Details
Strawbery Banke Museum
14 Hancock Street, Portsmouth, New Hampshire, 03801, United States

Strawbery Banke Museum, in the heart of historic downtown Portsmouth, New Hampshire, is a 10-acre outdoor history museum dedicated to bringing 300+ years of American history to life.  The museum is a place for children, adults, multi-generational families and groups to gather to explore heritage gardens, historic buildings, crafts, preservation programs, hands-on activities, stories told by costumed role-players and the changing exhibits that offer hours of fun and discovery.  The museum’s restored buildings and open space invite visitors to immerse themselves in the past.  The museum welcomes 110,000 visitors, members, schoolchildren and volunteers who love New Hampshire history for daily programs, exhibits, skating and signature special events throughout the year.