For a well-made and well-maintained sextant,...

Question 1 / 2066636ee928f7522a1c51a6e0

Question 1 of 2066636ee928f7522a1c51a6e0

For a well-made and well-maintained sextant, the maximum value of which correction is usually so small that it can be ignored?

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Question 1 of 20

66636ee928f7522a1c51a6e0

For a well-made and well-maintained sextant, the maximum value of which correction is usually so small that it can be ignored?

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🔍 Key Concepts

• Sextant errors and corrections: Know the difference between errors that depend on the observer and those that depend on the instrument or the environment. • Order of magnitude of corrections: Think about which corrections are typically several minutes of arc versus fractions of a minute on a properly adjusted sextant. • Good practice vs. exam assumptions: In real life you might apply all corrections, but on exams they may assume ideal conditions for a "well-made and well-maintained" sextant.

💭 Think About

• Which of these corrections depends mainly on the observer’s handling or eyesight, and which depend on physical geometry like height of eye or instrument alignment? • If a sextant has been recently adjusted and is in good condition, which specific error should be almost zero by design? • Among the listed corrections, which one is always applied from external tables regardless of instrument quality, and which ones can be reduced to nearly nothing on a quality instrument?

✅ Before You Answer

• Identify which corrections come from observer factors (you) versus instrument construction/adjustment versus Earth/geometry (like horizon depression). • Ask: for a well-made, well-maintained sextant, which correction is expected to be nearly zero in magnitude under ideal conditions? • Verify which corrections are normally found in Nautical Almanac tables (and therefore are not ignored just because the instrument is good).

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Question 1 of 20

For a well-made and well-maintained sextant, the maximum value of which correction is usually so small that it can be ignored?

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Question 1 / 2066636ee928f7522a1c51a6e0

Question 1 of 2066636ee928f7522a1c51a6e0

For a well-made and well-maintained sextant, the maximum value of which correction is usually so small that it can be ignored?

Back

Question 1 of 20

66636ee928f7522a1c51a6e0

For a well-made and well-maintained sextant, the maximum value of which correction is usually so small that it can be ignored?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

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