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Author
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Topic: Problem 9.8 CelNav 2nd Ed, page 105
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Lance
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posted April 02, 2020 02:44 PM
Just a comment, not a complaint, and as always, I could be wrong:
This exercise starts us with Hs = 9° 8.8'. Corrected for index error and dip this comes down to 9°2.1'. The refraction correction is shown on page 239 as -5.9', but table T8 on page 251 does not have entries below 9°56'.
Up until this exercise I had assumed that all relevant tables for the problems in the book were provided in the tables section. Assuming this is intentional, I presume the reader who has reached this stage is now encouraged to enrich his/her education by evaluating the formula on page 213 or to search out other tables - perfectly reasonable!
By the way, the calculator on page https://www.starpath.com/calc/Celestial%20Navigation/pressure.html seems to ask for degrees as the unit of pressure - although this is corrected below the entry text box. Again, not a complaint, just a comment.
From: Hobart, Australia
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