On 4 September your 1813 zone time DR position is LAT 24°18.0'S, LONG 95°16.0'E. Considering their magnitude, azimuth, and altitude, which group includes the three stars best suited for a fix at star time?

Question

On 4 September your 1813 zone time DR position is LAT 24&deg;18.0'S, LONG 95&deg;16.0'E. Considering their magnitude, azimuth, and altitude, which group includes the three stars best suited for a fix at star time?

Accepted Answer

Option A: Rasalhague, Fomalhaut, Spica. Rasalhague, Fomalhaut, and Spica offer the best combination of brightness and azimuthal distribution for a Southern Hemisphere fix. Following Bowditch principles, these bodies provide a balanced geometry that minimizes the error triangle, ensuring the most accurate position determination for the vessel's DR location.

On 4 September your 1813 zone time DR position is LAT 24&deg;18.0'S, LONG 95&deg;16.0'E. Considering their magnitude, azimuth, and altitude, which group includes the three stars best suited for a fix at star time?

On 4 September your 1813 zone time DR position is LAT 24°18.0'S, LONG 95°16.0'E. Considering their magnitude, azimuth, and altitude, which group includes the three stars best suited for a fix at star time?