CELESTIAL-L1.2

The celestial sphere and its coordinates

CELESTIAL-M1 · Foundations: sphere, time and almanac · CELESTIAL-M1-A Why astro still matters, what the exams demand, and the coordinates, time and almanac work every sight rests on.

Declination is latitude in the sky; **GHA** is longitude measured westward. Master the PZX triangle and every sight reduction method becomes the same problem.

Independent study. xplor is not an accredited training provider and awards no certificate or Certificate of Competency. The MCA 'Celestial Navigation' examination must be sat at an MCA-approved examination centre, and the Yachtmaster Ocean certificate is awarded only by the RYA after its own oral and written examination. AI-drafted content pending subject-matter-expert review.