On 22 June your 0424 ZT DR position is LAT 26°18.5' N, LONG 124°18.2' W. You observe an unidentified star bearing 031°T at an observed altitude (Ho) of 49°26.0'. The chronometer reads 00h 23m 24s and is 01m 32s slow. What star did you observe?

Question

On 22 June your 0424 ZT DR position is LAT 26&deg;18.5' N, LONG 124&deg;18.2' W. You observe an unidentified star bearing 031&deg;T at an observed altitude (Ho) of 49&deg;26.0'. The chronometer reads 00h 23m 24s and is 01m 32s slow. What star did you observe?

Accepted Answer

Option D: Schedar. Convert chronometer time to UTC, then determine GHA Aries and SHA of the star using the Nautical Almanac. Calculate LHA by applying longitude to GHA. Compare the resulting LHA and Declination against the star's coordinates in the Almanac to identify Schedar, matching the observed altitude and bearing.

On 22 June your 0424 ZT DR position is LAT 26&deg;18.5' N, LONG 124&deg;18.2' W. You observe an unidentified star bearing 031&deg;T at an observed altitude (Ho) of 49&deg;26.0'. The chronometer reads 00h 23m 24s and is 01m 32s slow. What star did you observe?

On 22 June your 0424 ZT DR position is LAT 26°18.5' N, LONG 124°18.2' W. You observe an unidentified star bearing 031°T at an observed altitude (Ho) of 49°26.0'. The chronometer reads 00h 23m 24s and is 01m 32s slow. What star did you observe?