On 23 July your 1700 zone time DR position is LAT 27°29' N, LONG 129°26' W. You are on course 079°T at a speed of 20 knots. Considering their magnitude, azimuth, and altitude, which group includes the three bodies best suited for a fix at star time?

Correct Answer: Option D — Spica, Sabik, Vega

Optimal star fix selection requires stars with well-distributed azimuths approximately 120 degrees apart, moderate altitudes between 15 and 65 degrees, and bright magnitudes to minimize intersection errors and atmospheric refraction.