Cette série de douze textes développe les techniques nécessaires pour faire de la navigation astronomique. Ils comprennent des exemples et des applications, permettant d’apprendre via des exercices. En préalable, il faut être à l’aise avec les calculs fondamentaux utilisés en navigation. En particulier, il faut bien comprendre les systèmes de coordonnées et savoir additionner ou soustraire des coordonnées mesurées en degrés, minutes et secondes.
La théorie de navigation astronomique se comprend en une heure ou deux. Les idées sont simples. Après avoir lu le deuxième texte, vous comprendrez pourquoi la technique fonctionne.
L’application de la technique requiert cependant des calculs et, en débutant, beaucoup de patience! Si on ne porte pas attention aux détails, on peut facilement faire des erreurs. Il faut d’abord prendre son temps, puis, une fois qu’on comprends bien la recette, faire les choses plus rapidement.
Il est préférable de lire ces textes dans l’ordre. Cependant, après le texte portant sur l’identification du pied d’un corps céleste, on peut faire la première application, soit faire un point midi (noonsight).
- Exercices de réduction avec formules trigonométriques.
- Exercices de réduction avec table de réduction.
Cette série vous a plu? Vous pouvez en lire d’autres dans la section Apprendre de ce site.
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