On 10 November your 1630 zone time DR position is LAT 25°10.0'N, LONG 71°12.0'W. You are on course 335°T at a speed of 24 knots. What will be the zone time of sunset at your vessel?

Question

On 10 November your 1630 zone time DR position is LAT 25&deg;10.0'N, LONG 71&deg;12.0'W. You are on course 335&deg;T at a speed of 24 knots. What will be the zone time of sunset at your vessel?

Accepted Answer

Option B: 1700. Sunset time is calculated using latitude and declination to find the hour angle of the sun at the horizon, adjusted for vessel movement from the 1630 DR. Following Bowditch celestial procedures gives a zone time of 1700.

On 10 November your 1630 zone time DR position is LAT 25&deg;10.0'N, LONG 71&deg;12.0'W. You are on course 335&deg;T at a speed of 24 knots. What will be the zone time of sunset at your vessel?

On 10 November your 1630 zone time DR position is LAT 25°10.0'N, LONG 71°12.0'W. You are on course 335°T at a speed of 24 knots. What will be the zone time of sunset at your vessel?