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How do you use a sight reduction table?

Step-by-step sight reduction Start with Hs, the angle that you read off of your sextant. Apply the index correction. Correct for height of eye using the dip table on the inside front cover of the Nautical Almanac. ... Determine and apply the main sun correction from the inside front cover of the Nautical Almanac.

How do you use sight reduction?

0:00 31:26 How to do a Celestial Sight Reduction of the Sun - YouTube YouTube Start of suggested clip End of suggested clip Hello this is a note a video note of a pro explaining the process of doing a sight reduction of theMoreHello this is a note a video note of a pro explaining the process of doing a sight reduction of the sun. To get a line of position on the chart. So you take in the and the procedure is you take a

What is meant by sight reduction?

In astronavigation, sight reduction is the process of deriving from a sight, (in celestial navigation usually obtained using a sextant), the information needed for establishing a line of position, generally by intercept method.

How do you use rapid sight reduction tables?

6:04 13:28 Nautical Almanac - Sight Reduction Tutorial / Explanation - YouTube YouTube Start of suggested clip End of suggested clip To use the sight reduction tables we simply move along this column to the right where it says latMoreTo use the sight reduction tables we simply move along this column to the right where it says lat slash a till we find our assumed latitude.

How do you calculate GHA?

The SHA of the stars is simply a coordinate relative to this point. So to calculate the GHA of a star all you have to do is: GHA(star) = SHA(star) + GHA(aries).

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