On 16 July your 1810 zone time DR position is LAT 24°16.5' S, LONG 162°52.0' E. Considering their magnitude, azimuth, and altitude, which group includes the three bodies best suited for a fix at star time?

Correct Answer: Option D — Jupiter, Alphard, Alphecca

Effective star fixes require bodies distributed across the horizon to provide a strong geometric intersection. Jupiter, Alphard, and Alphecca provide the necessary azimuth separation and brightness for the specified date and latitude, ensuring the resulting lines of position are well-distributed to minimize the potential for systematic observation errors.