At meridian transit, the diagram used by a...

Question 1 / 2066636ee928f7522a1c519be5

Question 1 of 2066636ee928f7522a1c519be5

At meridian transit, the diagram used by a navigator to illustrate the angles involved is based on the __________.

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Question 1 of 20

66636ee928f7522a1c519be5

At meridian transit, the diagram used by a navigator to illustrate the angles involved is based on the __________.

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🔍 Key Concepts

• Meridian transit – when a celestial body crosses the observer’s local meridian (the north–south line through the observer) • How altitude and declination are shown in a meridian altitude diagram • Difference between a diagram based on a global reference (like Greenwich) and a local reference (the observer)

💭 Think About

• Ask yourself: At meridian transit, are we mainly concerned with a global reference meridian (like Greenwich), the celestial equator from a pole, or the observer’s own north–south line? • Which choice best describes the geometric plane that contains both the observer’s zenith and the celestial poles? • When you draw the altitude of the Sun or a star at LAN (local apparent noon), what line on your sketch does the body cross?

✅ Before You Answer

• Identify which option refers to the observer’s own meridian, not a distant or global reference meridian • Confirm that meridian transit is about the body crossing the local north–south great circle, not the equator itself • Eliminate options that only describe a viewpoint (e.g., "as observed from above a pole") rather than the geometric plane used for the altitude diagram

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Question 1 of 20

At meridian transit, the diagram used by a navigator to illustrate the angles involved is based on the __________.

celestial equator as observed from above the north celestial pole

plane of the observer's meridian

plane of the Greenwich meridian

celestial equator as observed from above the south celestial pole

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Question 1 / 2066636ee928f7522a1c519be5

Question 1 of 2066636ee928f7522a1c519be5

At meridian transit, the diagram used by a navigator to illustrate the angles involved is based on the __________.

Back

Question 1 of 20

66636ee928f7522a1c519be5

At meridian transit, the diagram used by a navigator to illustrate the angles involved is based on the __________.

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