On 15 October your 0300 zone time DR position is LAT 27°14' S, LONG 99°46' E. You are on course 128°T at a speed of 19 knots. Considering their magnitude, azimuth, and altitude, which group includes the three bodies best suited for a fix at star time?

Correct Answer: Option C — Achernar, Procyon, Aldebaran

Achernar, Procyon, and Aldebaran are selected based on their favorable azimuth distribution and moderate altitudes. Following Bowditch, these stars provide the necessary geometric spread to minimize the error triangle. Their magnitudes are sufficient for clear identification during the twilight period, ensuring an accurate fix at the specified Southern Hemisphere position.