Many of the concepts used in celestial navigation, such as the celestial sphere, spherical geometry and log-trig functions, can be rather daunting. But there is one special sight that doesn't employ these mysteries - the famous noon sun sight. Learn the concepts of the noon sun sight and how to use your sextant. Until you make the move to full-fledged celestial navigation, this booklet offers a sight that is simple in concept and simple to work up without sight-reduction tables, almanacs or plotting. Softcover, 24 pages.