Civil twilight starts at 1812 zone time on...

Question 1 / 2066636ee928f7522a1c51934d

Question 1 of 2066636ee928f7522a1c51934d

Civil twilight starts at 1812 zone time on 26 August, your DR position at that time is LAT 21°06'S, LONG 14°56'W. Which statement concerning the planets available for evening sights is TRUE?

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Question 1 of 20

66636ee928f7522a1c51934d

Civil twilight starts at 1812 zone time on 26 August, your DR position at that time is LAT 21°06'S, LONG 14°56'W. Which statement concerning the planets available for evening sights is TRUE?

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🔍 Key Concepts

• Evening star and planetary brightness hierarchy (Venus vs. Jupiter vs. Saturn vs. Mars) • What kind of line of position a planet gives when observed near the meridian versus well off the meridian • Geometry of a good three‑line fix (spread of azimuths, not too close together)

💭 Think About

• Think about which planet is normally the brightest object in the sky after the Sun and Moon and how navigators typically identify it • Consider whether a single body sight can directly give you latitude, or whether it generally gives you a line of position at right angles to the azimuth • For a good three‑line fix using planets, what should be true about their positions and azimuth spread in the sky at civil twilight?

✅ Before You Answer

• Brightness order of Venus, Jupiter, Saturn, and Mars in typical observing conditions • Whether any single planet sight routinely gives a latitude line without being very near the meridian • For a three‑body fix, check if the bodies would likely have widely separated bearings (azimuths) at this time and place, or be clustered in roughly the same area of the sky

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Question 1 of 20

Civil twilight starts at 1812 zone time on 26 August, your DR position at that time is LAT 21°06'S, LONG 14°56'W. Which statement concerning the planets available for evening sights is TRUE?

Mars will be near the prime vertical in the eastern sky.

Venus may be identified from Saturn and Jupiter because it is the brightest.

A sight of either Jupiter, Saturn, or Venus will give a latitude line.

Sights of Venus, Jupiter, and Saturn will yield a good three-line fix.

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Question 1 / 2066636ee928f7522a1c51934d

Question 1 of 2066636ee928f7522a1c51934d

Civil twilight starts at 1812 zone time on 26 August, your DR position at that time is LAT 21°06'S, LONG 14°56'W. Which statement concerning the planets available for evening sights is TRUE?

Back

Question 1 of 20

66636ee928f7522a1c51934d

Civil twilight starts at 1812 zone time on 26 August, your DR position at that time is LAT 21°06'S, LONG 14°56'W. Which statement concerning the planets available for evening sights is TRUE?

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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