Free Celestial Navigation Class


Learn how to use the sextant with a straightforward explanation of the calculations needed for locating one’s position at sea.  

A half-dozen students have attended the two recent celestial navigation classes (March 16th and 23rd, 2023) on how to process a sun sight. The same students are now welcome to take sun sights at Rodeo Beach and Doran Beach.  

Congratulations to Jana, Peter, and Rick for successful sun sights that can be seen in the image below. They are each within a couple of miles or so from where they took their sights and then processed them and plotted them on the sheet below.  The black arrow shows the precise position from where they took sextant readings at Doran Beach and the three LOPs (lines of position), one for each of them.

We will continue teaching traditional celestial navigation (using the sextant and 249 tables) at Rodeo Beach near Sausalito and Doran Beach near Bodega.  

You will only need a notepad and pencil for this class.  Explanatory notes will be provided.

If you are interested in signing up for this class, please send an email to   



We are teaching traditional celestial navigation (using the sextant and 249 tables). The class will take sun sights at Rodeo Beach after learning navigation theory at the Arques School.