On 22 April your 1852 DR position is LAT 23°54.5'N, LONG 117°36.8'W. You observe an unidentified star bearing 248°T at an observed altitude (Ho) of 25°00.9'. The chronometer reads 02h 54m 53s, and is 02m 51s fast. What star did you observe?

0' off the arc, and your height of eye is 48 feet. What is the latitude at merid...

What is a characteristic of a rhumb line?

You are on course 222°T and take a relative bearing of a lighthouse of 025°. Wha...

What defines a great circle?

The difference of latitude (l) between the geographic position (GP) of a celesti...

What is the difference in local time between an observer on 114°W and one on 119...

The distance between any two meridians measured along a parallel of latitude and...

What is the equivalent of 4°36' in time units?

Except for N-S courses, and E-W courses on the equator, a great circle track bet...

Which of the four adjustable errors in the sextant is the principle cause of ind...