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NOON SIGHT FOR LATITUDE AND LONGITUDE SUN DATE DR LAT n/s DR LONG e/w TC SP WHEN IS MOONLIGHT DATAMERIDIAN PASSAGE SEXTANT READING (HS) CENTRAL MERIDIAN INDEX ERROR +, DR LONGHEIGHT OF EYE (DIP) SEMIDIAMETER
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How to fill out noon sight for latitude

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How to fill out noon sight for latitude

01
Start by determining the exact time of local apparent noon (LAN) using a reliable time source such as a clock or GPS device.
02
Measure the altitude of the celestial body (usually the Sun) when it crosses your meridian using a sextant or an accurate measuring instrument.
03
Correct the measured altitude for instrument and atmospheric errors. This involves applying index correction, dip correction, and refraction correction if necessary.
04
Consult the Nautical Almanac or an online tool to obtain the declination of the celestial body for the specific date and time of observation.
05
Calculate the latitude using the observed altitude, declination, and the LAN. The formula used is: Latitude = (90 - observed altitude) + declination.
06
Apply any additional corrections or adjustments as needed, such as correcting for vessel motion or using advanced mathematical techniques like intercept and azimuth methods.
07
Record the calculated latitude and any additional information in a proper format for documentation and future reference.

Who needs noon sight for latitude?

01
Anyone involved in celestial navigation or marine navigation can benefit from performing a noon sight for latitude.
02
This includes sailors, navigators, captains, and anyone aboard a vessel or aircraft who needs to determine their current latitude accurately.
03
It is a fundamental skill for long-distance travel, especially when GPS systems or other electronic navigation tools are not available or unreliable.
04
In addition, astronomers, astrophysicists, and enthusiasts interested in celestial observations may also use noon sight for latitude for research or recreational purposes.
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Noon sight for latitude is a celestial navigation technique used to determine the observer's geographical latitude using the altitude of the sun at local noon.
Mariners and navigators who rely on celestial navigation techniques are required to file noon sight for latitude.
To fill out noon sight for latitude, one must record the altitude of the sun at local noon, along with the time and date of the observation, and calculate the geographical latitude using appropriate formulas.
The purpose of noon sight for latitude is to determine the observer's geographical latitude, which is essential for accurate navigation at sea using celestial navigation techniques.
The information reported on noon sight for latitude includes the altitude of the sun at local noon, the time and date of the observation, and the calculated geographical latitude.
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