On 13 September your 1830 ZT DR position was LAT 23°03'S, LONG 105°16'E when you observed a faint unidentifiable star through a hole in the clouds. The star bore 351.5°T at a sextant altitude (hs) of 62°05.6'. The chronometer read 11h 24m 39s and is 5m 08s slow. The index error is 1.0' off the arc, and the height of eye is 52 feet. What star did you observe?

You desire to make good a true course of 129°. The variation is 7°E, magnetic co...

You desire to make good a true course of 132°. The variation is 10°W, magnetic c...

A great circle crosses the equator at 141°E. It will also cross the equator at w...

The track line on the chart is 274°T. Variation is 4°E, and deviation is 2°E. Th...

The true course between two points is 312°. Your gyrocompass has an error of 3°W...

The upper vertex of a great circle track is in LONG 156°00'E. Sailing eastward,...

In which voyage, between two points, is the rhumb line distance NOT approximatel...

Your 0000 zone time position on 13 June is LAT 24° 35' N, LONG 142° 26' E. Your...

At 0100 zone time on 23 September your DR position is LAT 24°25.0'N, LONG 83°00....

At 0327 ZT on 29 May, your DR position is LAT 25° 00' N, LONG 64° 15' W. You are...