On 10 October your 0930 zone time position is LAT 25°00.0'S, LONG 164°38.6'W. Your vessel is on course 180°T at a speed to 10.0 knots. What is the zone time of local apparent noon (LAN)?

Question

On 10 October your 0930 zone time position is LAT 25&deg;00.0'S, LONG 164&deg;38.6'W. Your vessel is on course 180&deg;T at a speed to 10.0 knots. What is the zone time of local apparent noon (LAN)?

Accepted Answer

Option A: 1145. Local Apparent Noon occurs when the Sun's LHA is 000°. Calculate the GHA of the Sun at 1200 GMT, then determine the time difference based on the vessel's longitude. Adjusting for the 164°38.6'W longitude relative to the prime meridian yields a zone time of 1145 for the meridian passage.

On 10 October your 0930 zone time position is LAT 25&deg;00.0'S, LONG 164&deg;38.6'W. Your vessel is on course 180&deg;T at a speed to 10.0 knots. What is the zone time of local apparent noon (LAN)?

On 10 October your 0930 zone time position is LAT 25°00.0'S, LONG 164°38.6'W. Your vessel is on course 180°T at a speed to 10.0 knots. What is the zone time of local apparent noon (LAN)?