# NavList:

## A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

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Re: Celestial navigation classes: looking for suggestions...
From: Greg Rudzinski
Date: 2016 Oct 26, 11:30 -0700

Amplitude, Sumner,  Polaris, and Ex-meridian by table and or calculator might be of interest to students. GC, Mid-latitude, and Mercator sailings if time permits.

Greg Rudzinski

From: Frank Reed
Date: 2016 Oct 26, 10:56 -0700

Looking for ideas... What sort of classes, typically weekend-length, would be of interest? Feel free to suggest anything...

I'm brainstorming on ideas for some new classes, taught primarily at Mystic Seaport, but these travel! My current class repertoire includes:

Latitude and longitude by sights around noon (I haven't taught this one recently but it's coming back, somewhat modified).
• Celestial Navigation 19th Century Methods
Noon Sun and Time sights for longitude as practiced in the age of sail (this class will likely be renamed soon).
Latitude and longitude by Sun and star sights analyzed by common handheld calculators.
• Lunars: Longitude by observing the Moon
the fascinating historical method of lunar distances.
• Intermediate Celestial (a former class, replaced as below)

I'm thinking of several new classes:

Celestial as it was practiced in the middle of the 20th century, especially in the Second World War, focusing on early intercept methods like HO 211 and HO 208.
Focused on standard, late 20th century methods, like HO 229 and HO 249, standard plotting sheets, twilight stars, the usual.
more methods of modern CN, spherical triangle mathematics, azimuth by celestial observations, details of altitude corrections, and other advanced, exotic topics.
real methods, both traditional and historical, for finding your way by the stars on land, while hiking or travelling cross-country.
• Science of Time (formerly "Sundials and time", expanded from one day to two)
Learn to calculate and build a sundial. And learn about all aspects of time: Julian and Gregorian calendars, leap years and leap seconds, sidereal time and universal time, sextant time sights and the equation of time, all viewed through the lens of thousands of years of fascinating history.

Please feel free to suggest anything that comes to mind... Thanks! :)

Frank Reed

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