Sight Reduction Methods

Celestial navigation using the sun, moon, stars, and planets to plot your position and course is still a vital skill for every ocean-going yachtsman, even in this day of GPS navigation.  Here is a guide to five important methods for converting your observations into the meaningful data that tells you exactly where you are.

USPS Guides are available to members and the public at various marine supply stores, and also directly from United States Power Squadrons Headquarters by calling 1-888-FOR-USPS between 8:00AM and 4:30PM ET Monday through Friday, or on-line via the United States Power Squadrons Ship's Store.  Visa, MasterCard, Discover, and American Express are accepted.  These guides are also available to USPS members through their Squadron Educational Officer.