Help with latitude and longitude?
(Posted by: Jon on 2012-06-17 17:35:22)
If the North Star is 40 Degrees, Local time is 4:20 PM, Chronometer time is 6 PM, What is the Latitude and Longitude of an item??? Thanks for any help I can get with this problem.
If the North Star is 40 degrees than your Latitude is 40 Degrees North. You can 't see the North Star south of the equator. Local time is 1620 and GMT is 1800 your 2.5 hours west of Greenwich. Each time zone is 15 Degrees wide. 1 hour = 15 Degrees of Longitude Longitude would be about 37.5 Degrees West.
If the North star is 40° above your horizon then you must be 40° above the Equator. The world turns at 15° per hour. As local time is 1⅔ hours behind the chronometer you must be 1⅔ hr • 15°/ hr = 25° west of wherever you standardized you chronometer. .