On 12 July your 0800 ZT DR position is LAT...

Study

Question 1 of 2066636eea28f7522a1c51aa52

On 12 July your 0800 ZT DR position is LAT 24° 15.0' N, LONG 132° 30.0' W. Your vessel is on course 045° T at a speed of 15.0 knots. What is the ZT of local apparent noon (LAN)?

Back

Question 1 of 20

66636eea28f7522a1c51aa52

On 12 July your 0800 ZT DR position is LAT 24° 15.0' N, LONG 132° 30.0' W. Your vessel is on course 045° T at a speed of 15.0 knots. What is the ZT of local apparent noon (LAN)?

No comments yet

Be the first to share your thoughts!

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

🔍 Key Concepts

• Local Apparent Noon (LAN) occurs when the Sun crosses your meridian (when LHA of the Sun is 0°). • Relationship between longitude difference from the standard time meridian and the time correction in minutes. • Conversion between speed, time, and distance to adjust DR position from 0800 ZT to the estimated position at LAN.

💭 Think About

• From 0800 ZT, estimate how far along your course you will travel before the Sun reaches your local meridian. How can speed in knots help you relate miles to minutes of time? • How does your longitude compare with the central meridian for your time zone, and how does that affect the clock time of local apparent noon compared to 1200 ZT? • When LAN occurs at your longitude, what is the approximate Greenwich Hour Angle (GHA) of the Sun, and how does that relate to your longitude numerically?

✅ Before You Answer

• Be sure you are using the correct time zone / standard meridian for the given ZT and longitude. • Check that your distance run from 0800 to your estimated LAN time matches your speed of 15 knots (1 NM per 4 minutes). • Confirm that the time correction per degree of longitude is 4 minutes of time per degree, and apply the sign (east/west) correctly.

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

Quick actions

— No credit card needed

Study

Question 1 of 2066636eea28f7522a1c51aa52

On 12 July your 0800 ZT DR position is LAT 24° 15.0' N, LONG 132° 30.0' W. Your vessel is on course 045° T at a speed of 15.0 knots. What is the ZT of local apparent noon (LAN)?

Back

Question 1 of 20

66636eea28f7522a1c51aa52

On 12 July your 0800 ZT DR position is LAT 24° 15.0' N, LONG 132° 30.0' W. Your vessel is on course 045° T at a speed of 15.0 knots. What is the ZT of local apparent noon (LAN)?

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