Time Zone ConverterSunrise and SunsetMoonrise and MoonsetGMT Event TimeGMT Meeting PlannerGMT Currency ConverterGMT CalendarDate CalculatorTimerGMT Time Zone ExplorerGMT World ClockGlobe TimeSun TimeMoon TimeCity TimeCricket TimeUS Eastern Time - ESTUS Pacific Time - PSTUS Central Time - CSTEU Central Time - CETUS Central Time - CSTIndia Time - ISTBristol TimeDid Columbus find longitude?The International Meridian Conference, Washington, 1884 GMT Timestamp In tune, on time and in timeAstrology: Natal ChartWhy is the Navy so involved in time-keeping?NTPPanchang - Indian Astrology
{{ cseIcon[cseOpen] }}

Did Columbus find longitude?

Christopher Columbus

Columbus twice claimed to have found his longitude by timing lunar eclipses. These claims are probably inaccurate.

Before the invention of accurate clocks, it was nearly impossible for sailors to find their longitude. This did not stop them from trying, however. Columbus made two attempts in his lifetime to measure his longitude. Both results were pretty bad, even by the standards of his day.

The only practical method for determining longitude in the fifteenth century was the well-known method of timing lunar eclipses. This method had been in use since ancient times, but since eclipses are rare, it is of limited use. A recent suggestion (Molander 1992) that Columbus used planetary conjunctions to determine his longitude on the first voyage has been shown to be incorrect (Pickering 1996)

.

Rate this page

Thanks for rating

Please explain any problem (email address for reply):

Useful linksGMT Time ConverterGMT World ClockWhat is GMT?Currency converter