When taking an amplitude, the Sun's center...

Question 1 / 2066636ee928f7522a1c51a275

Question 1 of 2066636ee928f7522a1c51a275

When taking an amplitude, the Sun's center should be observed on the visible horizon when __________.

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Question 1 of 20

66636ee928f7522a1c51a275

When taking an amplitude, the Sun's center should be observed on the visible horizon when __________.

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🔍 Key Concepts

• Amplitude of the Sun (taken at rising/setting to find compass error) • Difference between visible horizon and the theoretical (rational) horizon • Effect of Sun’s declination vs latitude on where the Sun appears on the horizon at rising/setting

💭 Think About

• Think about when the apparent position of the Sun at the horizon most closely matches the position of its center on the true horizon, so that your amplitude will be most accurate. • Which situations (combinations of latitude and Sun’s declination) make the Sun rise/set very far north or south of east/west, and how might that affect where you aim your sextant (center vs limb)? • Look at which option directly refers to the relationship between declination and latitude, since this relationship controls where on the horizon the Sun rises and sets.

✅ Before You Answer

• Identify which choice mentions the relative sign (same name or different name) of latitude and declination and recall what that implies for Sun’s rising/setting point. • Ask yourself in which condition the Sun’s center at the visible horizon is the best practical approximation to its center on the celestial (true) horizon. • Eliminate any option that talks about a general situation (like ‘high latitudes’ or ‘near a solstice’) without clearly tying it to how you actually observe the Sun at the horizon.

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Question 1 of 20

When taking an amplitude, the Sun's center should be observed on the visible horizon when __________.

the declination is of a different name from the latitude

the Sun is near or at a solstice

in high latitudes

the Sun's declination is at or near 0°

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Question 1 / 2066636ee928f7522a1c51a275

Question 1 of 2066636ee928f7522a1c51a275

When taking an amplitude, the Sun's center should be observed on the visible horizon when __________.

Back

Question 1 of 20

66636ee928f7522a1c51a275

When taking an amplitude, the Sun's center should be observed on the visible horizon when __________.

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?

Quick actions

— No credit card needed