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This small do-it-yourself sextant is built using a CD and its box. A few Lego blocks and glass mirrors. No electric tools are necessary to build a CD-Sextant. It′s a good science project.
[Omar F. Reis, 05462-020 Sao Paulo, Brazil]
Calculator shows an image of the night sky, including the positions of the sun, moon, 46 stars, and 4 planets at a given time and place. Enter any of hundreds of cities or the exact latitude and longitude.
[Omar F. Reis, 05462-020 Sao Paulo, Brazil]
Fill-in-the-blanks calculator will produce calculated azimuth and altitude from your DR position and the declination and GHA of the celestial body. You need a nautical almanac to use with this information. Not downloadable. Includes an excellent history of celestial techniques for mariners.
[Jacky W. H. Wong, USA]
Sells all the tools and information sources you need for celestial, visual, or electronic navigation. Claims to process more sextants than any other firm in the world
[Celestaire, Inc., Wichita, KS, USA]
Twenty-four-week course covering use of the sextant, electronic navigation, the Nautical Almanac, sight reduction by formula and scientific calculator, the Pilot and Great Circle charts and more.
[Canadian Power & Sail Squadrons, Scarborough, ONT, Canada]
Wide range of sailing instruction, including courses on basic and advanced coastal, offshore, passagemaking, coastal and celestial navigation, radar, bareboat chartering, multihull sailing, SSB, and night sailing, Also gives classes on diesel repair, electrical systems, cooking at sea and other technical topics. Their affiliated club rents cruising boats to members by the day and organizes instructional cruises in Greece, Tonga, et al.
[Modern Sailing Academy, Sausalito, CA, USA]
The school offers classroom, home study, and on-line training courses and sales of sextants, navigation software, celestial navigation calculators, work forms, starfinders, and other tools.,
[Starpath School of Navigation, Seattle, WA, USA]
Extensive list with good search facility. Covers just about any cruising topic. Tree and branch format for threads.
[The Sailing Company, Middletown, RI, USA]
Unmoderated forum on sail and power cruising. Lots of good advice and other resources, but you have to do some searching.
[Usenet, USA]
Unmoderated forum on various sailing topics. Some useful cruising information here, but you need to dig and you need to be selective..
[Usenet, USA]The satisfaction of accomplishing a journey of steering by compass and fixing a position by the sun is one of the best I can think of.
Peter F. Prowant
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