On 22 July your 0442 ZT DR position is LAT 26°35.6' N, LONG 22°16.7' W. You observe an unidentified star bearing 112°T, at an observed altitude (Ho) of 44°16.0'. The chronometer reads 05h 39m 03s and is 03m 14s slow. What star did you observe?

Question

On 22 July your 0442 ZT DR position is LAT 26&deg;35.6' N, LONG 22&deg;16.7' W. You observe an unidentified star bearing 112&deg;T, at an observed altitude (Ho) of 44&deg;16.0'. The chronometer reads 05h 39m 03s and is 03m 14s slow. What star did you observe?

Accepted Answer

Option D: Menkar. Determine GHA Aries and LHA Aries from the chronometer time. Calculate the star's LHA using the DR longitude. By entering Pub. 229 with the DR latitude and calculated LHA, the observed altitude and bearing match the coordinates for Menkar, consistent with standard celestial navigation reduction procedures for unidentified stars.

On 22 July your 0442 ZT DR position is LAT 26&deg;35.6' N, LONG 22&deg;16.7' W. You observe an unidentified star bearing 112&deg;T, at an observed altitude (Ho) of 44&deg;16.0'. The chronometer reads 05h 39m 03s and is 03m 14s slow. What star did you observe?

On 22 July your 0442 ZT DR position is LAT 26°35.6' N, LONG 22°16.7' W. You observe an unidentified star bearing 112°T, at an observed altitude (Ho) of 44°16.0'. The chronometer reads 05h 39m 03s and is 03m 14s slow. What star did you observe?