ASTERODOS
CELESTIAL NAVIGATION
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Course
I
Part I · Foundations
Where the Sun is: GHA and declination
Read the Sun's GHA and declination from the almanac for any second of UT.
Start the lesson
A few short pages, then a practice round.
Skip: try one problem
Get it right and move on. Miss it and we start the lesson.
Go back: Angles, time and UT
Revisit the previous module first.