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?

Question

On 23 July your 1700 zone time DR position is LAT 27&deg;29'N, LONG 129&deg;26'W. You are on course 079&deg;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?

Accepted Answer

Option A: Spica, Sabik, Vega. Optimal star selection requires bodies with high magnitude and balanced azimuth distribution. Spica, Sabik, and Vega offer excellent separation and brightness for a July evening fix at this latitude. This configuration minimizes the potential for systematic errors in the resulting fix, adhering to standard celestial navigation best practices.

On 23 July your 1700 zone time DR position is LAT 27&deg;29'N, LONG 129&deg;26'W. You are on course 079&deg;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?

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?