
Essential A4 nautical tables for celestial navigation, providing height and azimuth calculations. Compact, reusable, and based on the traditional French method for reliable results with any star.
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Master the art of celestial navigation with these comprehensive A4-sized tables, designed for calculating the height and azimuth of celestial bodies. Perfect for sailors, navigators, and astronomy enthusiasts, this compact yet powerful tool brings traditional French navigation methods to your fingertips. Whether you're plotting a course at sea or studying celestial mechanics, these tables provide the accuracy and reliability needed for precise astronomical calculations.
Unlike modern electronic systems, these tables offer a fail-safe, no-battery-required solution for celestial navigation. Their compact size makes them perfect for small vessels or backup navigation systems, while their traditional French methodology ensures compatibility with historical and contemporary navigation practices. Whether you're a professional mariner or a celestial navigation enthusiast, these tables provide the precision and reliability you need to navigate the seas with confidence.
Unlock the Secrets of Celestial Navigation with A4-Sized Precision Tables
Step into the world of traditional celestial navigation with these meticulously designed A4 tables, your essential companion for calculating the height and azimuth of celestial bodies. Whether you're navigating the open seas or exploring the principles of astronomical positioning, these tables offer unparalleled accuracy and ease of use. Designed for both professionals and enthusiasts, they bring the trusted French navigation method to life in a compact, durable format.
Engineered for Accuracy and Reliability
Built on the foundation of the French Navy's official navigation system, these tables were originally known as "Tables 900" before the adoption of HO-249. They rely on key astronomical parameters—hour angle, declination, and the observer's estimated latitude and longitude—to deliver precise calculations. While slightly more intricate than some modern alternatives, their compact design and reusable nature make them a favorite among navigators who value tradition and reliability.
Compact Yet Comprehensive Design
Housed in a single 44-page booklet with a unique head-to-tail binding, these tables are organized into two main sections: Dieumegard for height calculations and Bataille for azimuth calculations. The Dieumegard tables are further divided into four groups (Table 1, Table 2, Table 3, and Table A), while the Bataille tables are split into two groups (Table 1 and Table 2). This logical structure ensures that every step of your calculation is covered, from intermediate values to final results.
Built for Longevity and Practicality
Measuring 210 x 300 mm and weighing just 0.7 kg, these A4 tables are designed for portability without sacrificing readability. The brochure-style binding ensures durability, while the compact size makes them easy to store on any vessel or in a navigation kit. Unlike electronic devices, these tables require no power source, making them a dependable backup for any navigation scenario. Whether you're a seasoned sailor or a student of celestial navigation, these tables are an indispensable tool for mastering the skies.
These A4 celestial navigation tables are a compact yet powerful tool for calculating the height and azimuth of celestial bodies. With 44 pages of detailed tables, they cover all essential parameters—hour angle, declination, latitude, and longitude—using the traditional French method. The tables are divided into specialized sections for Dieumegard (height) and Bataille (azimuth) calculations, ensuring step-by-step precision. Measuring 210 x 300 mm and weighing just 0.7 kg, they are designed for durability and ease of use in any navigation setting.
With a legacy rooted in the French Navy's navigation traditions, this brand has been a trusted name in celestial navigation tools for decades. Known for their precision, durability, and adherence to time-tested methods, their products are designed to meet the needs of both professional mariners and astronomy enthusiasts. Each tool reflects a commitment to quality and reliability, ensuring accurate results in even the most demanding conditions.
The main inputs required are the hour angle, declination of the celestial body, and the observer's estimated position, including latitude and longitude.
There are 29 Dieumegard tables divided into 4 groups: Table 1 (12 pages), Table 2 (5 pages), Table 3 (6 pages), and Table A (6 pages).
Yes, the tables are designed to be used indefinitely for all celestial bodies.
The booklet is bound head-to-tail in a single fascicle, allowing easy access to both Dieumegard and Bataille tables.
These tables are more compact than HO-249 but may require slightly more complex intermediate calculations.
The tables are written in French.
The tables weigh 0.7 kg.
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