DAVIS Mark 3 Sextant - Manual (Page 16)

Page 14
STUDENT NAVIGATION TABLES
The tables on the following pages give the approximate declination and equation
of time of the sun. Latitude calculated with these values will be accurate to about
± 15'. The tables are thus intended for study purposes only, although they may be
used for emergency navigation.
NAUTICAL ALMANACS, CHARTS and
TABLES
The Nautical Almanac is published yearly by
the U.S. Naval Observatory and the H.M.
Nautical Almanac Office, Royal Greenwich
Observatory, U.K. It may be purchased from the
superintendent of Documents, U.S.
Government Printing Office, Washington, D.C.,
or from many marine and chart dealers.
Sight reduction tables, plotting sheets and star
finders are also available from many marine
and chart dealers.
FURTHER RESOURCES
Books for learning celestial navigation are available in many maine stores and
larger bookstores. Most often recommended are The American Practical
Navigator (U.S. Navy Hydrographic Office) and Dutton’s Navigation and Plotting
(U.S. Naval Institute). Other popular and regularly available titles are published by
Cornell Maritime Press and the International Marine Publishing Co.
Videos are available from larger marine dealers, video mail order houses, and
online.
Schools and courses are offered from local planetariums and community col-
leges in coastal areas. The U.S. Power Squadron (Raleigh, NC) also conducts
regional classes. Other schools and correspondence schools include the
International School of Sailing (Fort Lauderdale, FL) and Ocean Navigator
Training Courses (Portland, ME).
Home study classes may be ordered from the International Navigation School
(Toronto, Ontario, Canada), Starpath School of Navigation (Seattle, WA), Florida
Maritime Institute (Stuart, FL), The Annapolis Sailing School (Annapolis, MD), and
Coastal Navigation (Annapolis, MD).