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(See our special Astro deals!) There are more books on this subject on the other pages! |
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Charts and Hydrographic Publications
Rite in the Rain All-Weather notebooks.
GPS AFLOAT.By Bill Anderson. Pbk, 172mm x 240mm, 126 pages, full colour drawings and photographs.
The Global Positioning System has revolutionised small boat navigation. A GPS set gives your position to within 20 metres, anywhere on earth. Punch in your destination and the machine gives the data you need to sail or motor to your target. The dream of navigators through the ages - always to know exactly where they are and where they are going - has finally been realised.
GPS Afloat explains, to the novice or traditional navigator, what the system can and cannot do. in a very short time you will be entering Waypoints, planning Routes and watching the Crosstrack Error as though they were old friends. You will also understand how to check your results using traditional navigation, common sense and the Mark 1 eyeball.
Learn all about:
NZ$40.00 + delivery.
CAPTAIN RUDE STAR-FINDER 2102-D.The unit consists of a base plate (northern hemisphere on one side, southern on the other) plus a set of latitude plates. Use the nautical almanac to look up the Greenwich Hour Angle of Aries for the time of interest (usually Civil Twilight - also obtained from the nautical almanac), then set the closest latitude disk on the base plate. Rotate the arrow on the latitude disk to the Local Hour Angle of Aries on the graduated edge of the base-plate, and you have in your hand a picture of the sky around you, showing the stars visible at twilight. From the disk you can read the azimuths (bearings), and altitudes (angular height above the horizon) of the stars. The planets, sun and moon can be marked in pencil onto the base-plate for a specific date and their approximate positions in the sky obtained at the same time as the starts. This is an invaluable device for celestial navigators and also useful for more general star-gazing. The star-finder should be a complimentary tool to the sextant in any blue-water navigator's kit.
NZ$100.00 + delivery.
Click for details of the Star IdentifierBRITISH ADMIRALTY TYPE STAR IDENTIFIER
This tool, like that above, is used to predict the bearing from true north (azimuth) and angle above the horizon (altitude) of the brightest stars. It is used for setting up star sights so that observations can be made using a firm horizon, by pre-setting the sextant and looking over the compass. In this way stars can be observed through the telescope before they are easily visible to the naked eye.
Star sights using this technique are much more accurate than if taken when the sky is dark enough to recognise the stars in constellations with the naked eye, due to the superior quality of the horizon. The instructions provided with the identifier are explicit.
Planets can also be pre-set using the identifier, enabling daylight sights of Venus and occasionally Mars and Jupiter.
The main point of difference with the 2012-D above is the quality. The British Admiralty type has a card base-plate and wallet whilst the 2012-D is of strong plastic throughout.
NZ$43.00 + Delivery
Visitors to New Zealand and all who visit the "backblocks" will find themselves with a fantastic view of the heavens in our clear atmosphere, once away from the glare of city lights.
This booklet will help to identify the Southern Cross, and many other remarkable constellations and distant stars in their New Zealand orientations.
The size of this map-of-the-heavens, and its weatherproof packaging make it an ideal supplement to a backpackers portable library.
NZ$12.00 + Delivery.
Click for details of the Celestial WorksheetsCELESTIAL WORKSHEETS The worksheet pads are designed to be used as an adjunct to class-room teaching; each one contains a copy of table 5 (corrections to Ho for minutes of declination), and a copy of the altitude correction tables for the sun and stars, including dip. There are 15 sight-sets, each of which contains worksheets for 2 sun sights, one meridian passage, and a plotting sheet. The plotting sheet is scaled at 100 mm to 40 miles and contains a compass rose and a departure to difference in longitude graph, similar in orientation to the standard US Navy plotting sheet. Each page has a panel for certifying the contents as unaided work; this would satisfy the need for practical sights required for certificates by some administrations.
NZ$15.00 + Delivery.
THE SEXTANT HANDBOOK Adustment, Repair, Use and HistoryBy Bruce Bauer. Pbk, 150mm x 235mm, 189 pages, monochrome drawings and photographs.
" The wealth of useful material is prodigious and by the time one has reached the back cover, the sextant is an old friend. Just as important, Cdr. Bauer deals comprehensively with maintenance and sevice and his advice on how to select and assess a second-hand sextant is truly worthwhile. Refreshingly, he writes in a friendly manner-almost as though he is chatting to a group of students. A thoroughly enjoyable book". (Peter Milne Technical Editor, Yachting World) Then the last chapter is on "Sextants of Tomorrow" very interesting.
NZ$47.00 + Delivery
OCEAN SAILING, Celestial Navigation, Ocean Weather and Passage Making.By Tom Cunliffe, Pbk, 240mm x 170mm, 96 pages.
This book is based on the Yachtmaster Ocean syllabus of the Royal Yachting Association (UK) and assumes the reader is a competent sailor and coastal navigator with a basic knowledge of meteorology and chartwork. It has clear colour diagrams and photographs, easy to follow examples and explanations.
It concentrates on the absolute essentials that separate ocean sailing from all other facets of small-craft seafaring. None of the subjects requires a higher degree of learning than the average fourteen year old teenager has acquired.
Part 1 covers celestial navigation, as even in this electronic age, it is a skill every skipper should posses. Part 2 looks at world weather systems and how to use them to your advantage. Hurricanes and typhoons are analysed, with the emphasis on avoiding them. But if a trade wind squall strikes or an approaching hurricane looks like slipping by your strategic defences, Cunliffe is on hand with remedial advice. Part 3 explains what you actually do out at sea. It covers gathering information, making plans, what to take, how to run watch systems, and the delight of making long passages.
NZ$40.00 + Delivery
THE COMPLETE ON-BOARD CELESTIAL NAVIGATOR, Everything but the Sextant. 2007-2011 Edition. By George C Bennett. Pbk, spiral bound, 215mm x 275mm, 176 pages, monochrome tables and drawings.
Celetial navigation remains an essential skill for every mariner who ventures out of sight of land. Is this era of electronic navigation, it is the prefect backup system, enabling you to determine your position when the GPS malfunctions or your boat loses electrical power.
Here in one volume is every bit of information you need to understand the process, take sights, and find your location anywhere in the world. Compiled for beginning and experienced celestial navigators alike, and elegantly designed on the assumption that 1-mile precision is perfectly adequate of backup navigation, this handy volume replaces $300 worth and thousands of pages of guides, tables, and almanacs. It includes:
NZ$65.00 + Delivery.
EASY NAV, Second Edition.
By Frank Dinkelaar. Pbk with plastic laminated end-covers, spiral bound, 280mm X 210mm, 64 pages plus worksheets, monochrome tables and plans.
This is a complete astro-nav unit for the Sun and Stars, excluding only the clock and sextant. A perpetual almanac for the sun and stars is provided, together with a method of sight reduction. Clear work-sheets are used for all computations together with a full set of instructions.
The tables cover the epoch 2000 - 2099 ie. well beyond any on-board navigation concern of anyone reading this review!
Easy Nav is the best celestial "emergency nav-pack" we have come across, apart from a spare GPS!
This second edition has a much improved layout and some small typos have been corrected.
NZ$50.00 + Delivery.
CELESTIAL NAUTICAL ALMANAC 2010 COMMERCIAL EDITION.Pbk, perfect bound, 177mm x 254mm.
This is a yearly celestial almanac (valid from January 1st 2010 to December 31st 2010) for sights and general use of the sun, moon, stars and planets, giving world-wide astronomical information. Apart from sights for position lines it contains information allowing the calculation of sunrise and set, and moonrise and set anywhere in the world, and information on eclipses and regional and national time differences.
It should not be confused with the New Zealand Nautical Almanac, which it in no way resembles. It can be regarded as a complete substitute for the British Admiralty Abridged Nautical Almanac, which is nearly double the price.
NZ$80.00 + Delivery. See our Super Special Astro Deal!!
AMERICA TO ANTIPODES Sight Reduction Tables, For latitudes 45° north to 45° south.Published by Captain Teach, Pbk, 300mm x 210mm (A4).
The tables provide sight reduction using the presentation and processes of the joint US-UK air-sight reduction tables, AP 3270. Our edition enable sight reduction for all celestial bodies of declinations from 30°north to 30° south, and latitudes 45° north to 45° south. Included are the sun, moon, planets and 30 of the 57 stars on the daily pages.
There is no longitude constraint, and the latitude limits include all of the Tasman Sea, and the Pacific from the Forveaux Strait to the northern extremity of Japan.
NZ$50.00 + Delivery.
CELESTIAL NAVIGATION CD.By Mike Scanlan. E-book, 177 pages.
This book is an e-book, a complete book published in electronic form. The book was originally written as a companion to Coastal Navigation. The book is formatted into 177 pages, complete with a Contents, 11 fully-illustrated chapters, a Glossary of celestial navigational terms, and an Index. There are also 4 Appendices, covering the use of a scientific calculator, navigational formulas, navigational accuracy, and all the necessary extracts from the Nautical Almanac.
NZ$20.00 + Delivery.
SIGHT REDUCTION TABLES FOR AIR NAVIGATION, Pub. No 249, Commercial Edition
Reproduced from US Government published tables. Pbk, 215mm x 265mm.
These are exact reproductions of the official US and hence British tables for sight reduction.
Volumes 2 and 3 are perpetual, volume 2 being the most wanted as it covers all voyaging between the most frequented parallels of latitude, 40 degrees north to 40 degrees south. The declination limits allow sights of the sun, Moon and navigational planets, as well as the majority of navigational stars.
Volume 1, Selected Stars, includes stars having declinations beyond the limits bounded by volumes 2 and 3, and also serves as a means of predicting star azimuths and altitudes for planning early star sights to allow the use of a well-lit horizon. This volume also serves the same purpose as and eliminates the need for a star identifier. Each edition of Volume 1 covers only a five-year period.
See our Special Astro Deal! and our Super Special Astro Deal!!
Sight Reduction Tables for Air Navigation, Pub. No 249 Volume 1 Selected Stars Epoch 2010.
NZ$63.50 + delivery.
Sight Reduction Tables for Air Navigation, Pub. No 249 Volume 2 Latitudes 0 to 40 degrees.
NZ$63.50 + delivery.
Sight Reduction Tables for Air Navigation, Pub. No 249 Volume 3 Latitudes 39 to 89 degrees.
NZ$63.50 + delivery.
Special Astro Deal! - save about 15%:
Sight Reduction Tables Volumes 1, 2 and 3 (the full set)Only NZ$160 + delivery.
Super Special Astro Deal!! - save about 15%:
The latest Celestial Nautical Almanac plus Sight Reduction Tables Volumes 1, 2 and 3 (the full set)Only NZ$230 + delivery.
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