On 22 March your 0519 ZT DR position is LAT 27°20.6' N, LONG 69°25.6' W. You observe an unidentified star bearing 094°T, at an observed altitude (Ho) of 30°15.0'. The chronometer reads 10h 16m 47s and is 02m 15s slow. What star did you observe?

Question

On 22 March your 0519 ZT DR position is LAT 27&deg;20.6' N, LONG 69&deg;25.6' W. You observe an unidentified star bearing 094&deg;T, at an observed altitude (Ho) of 30&deg;15.0'. The chronometer reads 10h 16m 47s and is 02m 15s slow. What star did you observe?

Accepted Answer

Option D: Enif. Calculate UTC and extract GHA Aries and SHA from the Nautical Almanac. Compute LHA and Declination. Comparing these coordinates to the observed bearing of 094°T and altitude of 30°15.0' confirms Enif, following the established methodology for celestial body identification as detailed in the American Practical Navigator.

On 22 March your 0519 ZT DR position is LAT 27&deg;20.6' N, LONG 69&deg;25.6' W. You observe an unidentified star bearing 094&deg;T, at an observed altitude (Ho) of 30&deg;15.0'. The chronometer reads 10h 16m 47s and is 02m 15s slow. What star did you observe?

On 22 March your 0519 ZT DR position is LAT 27°20.6' N, LONG 69°25.6' W. You observe an unidentified star bearing 094°T, at an observed altitude (Ho) of 30°15.0'. The chronometer reads 10h 16m 47s and is 02m 15s slow. What star did you observe?