The major problem with Moon sights is the __________.
⢠Lunar observations (Moon sights) in celestial navigation ⢠How Moonâs apparent size and shape change with phase and altitude ⢠Which errors are biggest in practice versus mostly theoretical
⢠Think about which option describes something that would consistently make it hard to take or use a Moon sight, not just a small computational correction ⢠Ask yourself: Which of these problems would mainly affect the observation with the sextant, and which would mainly affect the mathematical reduction? ⢠Consider your experience (or what youâve read): When navigators talk about Moon sights being tricky, what practical issue do they most often complain about?
⢠Identify which choices deal with computational corrections (parallax, GHA, declination, augmentation) versus visual/observational difficulties ⢠Recall that large, well-known corrections like horizontal parallax and augmentation are tabulated and routinely appliedâare they usually considered a âmajor problemâ or just normal corrections? ⢠Decide which option describes a difficulty that cannot be fully removed just by better tables or math, because it is inherent in what you see through the sextant
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