On 22 July your 0442 DR position is LAT 26°35.6' N,... - USCG Navigation Problems

On 22 July your 0442 DR position is LAT 26°35.6' N, LONG 22°16.7' W. You observe an unidentified star bearing 149°T at an observed altitude (Ho) of 12°55.0'. The chronometer reads 05h 39m 03s, and is 03m 14s slow. What star did you observe?

A Hamal

B Rigel

C Acamar

D Menkar

AI Explanation

The correct answer is C) Acamar. To determine the star observed, we can use the given information and apply celestial navigation principles. Based on the observed latitude, longitude, star bearing, and altitude, as well as the chronometer information, we can use star charts and almanacs to identify the most likely star. Given the celestial coordinates and the observed time, the star that best matches the provided information is Acamar (also known as Theta Eridani). The other options, Hamal, Rigel, and Menkar, do not align with the provided data and can be eliminated as incorrect choices.

Question 105Navigation Problems

On 22 July your 0442 DR position is LAT 26°35.6' N, LONG 22°16.7' W. You observe an unidentified star bearing 149°T at an observed altitude (Ho) of 12°55.0'. The chronometer reads 05h 39m 03s, and is 03m 14s slow. What star did you observe?