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  2. Longitude by chronometer - Wikipedia

    en.wikipedia.org/wiki/Longitude_by_chronometer

    This variation must be added to or subtracted from the UTC of local apparent noon to improve the accuracy of the calculation. Using the Equation of time correction along with the time averaged ascending/descending noon sights can result in accuracies of 1 nautical mile (1.9 km) or less. Without time averaging, the difficulties in determining ...

  3. Visa requirements for Canadian citizens - Wikipedia

    en.wikipedia.org/wiki/Visa_requirements_for...

    Visitor visa (up to 120 days of stay) / Non-refundable fee -USD 30. E-VISA processing time is up to 3 working days. No Australia and territories Electronic Travel Authorisation [19] 90 days 90 days on each visit in 12-month period. Canadian Passport Holders may enter using Smartgate system. Yes Austria: Visa not required [20] 90 days

  4. Sidereal time - Wikipedia

    en.wikipedia.org/wiki/Sidereal_time

    Solar time is measured by the apparent diurnal motion of the Sun. Local noon in apparent solar time is the moment when the Sun is exactly due south or north (depending on the observer's latitude and the season). A mean solar day (what we normally measure as a "day") is the average time between local solar noons ("average" since this varies ...

  5. Noon - Wikipedia

    en.wikipedia.org/wiki/Noon

    Noon (also known as noontime or midday) is 12 o'clock in the daytime. It is written as 12 noon, 12:00 m. (for meridiem, literally 12:00 midday), 12 p.m. (for post meridiem, literally "after midday"), 12 pm, or 12:00 (using a 24-hour clock) or 1200 (military time). Solar noon is the time when the Sun appears to contact the local celestial meridian.

  6. Hour angle - Wikipedia

    en.wikipedia.org/wiki/Hour_angle

    At solar noon the hour angle is zero degrees, with the time before solar noon expressed as negative degrees, and the local time after solar noon expressed as positive degrees. For example, at 10:30 AM local apparent time the hour angle is −22.5° (15° per hour times 1.5 hours before noon).

  7. Solar time - Wikipedia

    en.wikipedia.org/wiki/Solar_time

    The apparent sun is the true sun as seen by an observer on Earth. [4] Apparent solar time or true solar time [a] is based on the apparent motion of the actual Sun. It is based on the apparent solar day, the interval between two successive returns of the Sun to the local meridian. [5] [6] Apparent solar time can be crudely measured by a sundial. [b]

  8. Visa policy of Canada - Wikipedia

    en.wikipedia.org/wiki/Visa_policy_of_Canada

    The visa policy of Canada requires that any foreign citizen wishing to enter Canada must obtain a temporary resident visa from one of the Canadian diplomatic missions unless they hold a passport issued by one of the 53 eligible visa-exempt countries and territories or proof of permanent residence in Canada or the United States.

  9. Sunrise equation - Wikipedia

    en.wikipedia.org/wiki/Sunrise_equation

    is the number of days since Jan 1st, 2000 12:00. is the Julian date; 2451545.0 is the equivalent Julian year of Julian days for Jan-01-2000, 12:00:00. 0.0008 is the fractional Julian Day for leap seconds and terrestrial time (TT). TT was set to 32.184 sec lagging TAI on 1 January 1958. By 1972, when the leap second was introduced, 10 sec were ...