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Ken G. at one time mentioned he could get a good idea of the sun’s altitude based on the amount of “squish. Frank mentioned horizontal vs. vertical observed semi diameter as a yardstick for amplitude, which caused me to wonder how great the difference might be with the sun’s LL at 14’. Again employing inspection and mental interpolation from the NA’s 0-10 table, I arrived at an UL altitude of 41’ for HC = 0. 41’ –14’ yielded a theoretical observed SD of 27’.

Is there an “Easy Button,” an equation or simper method of calculating squish at various altitudes rather than tabular inspection or multiple observations?

Bill B

At the onset (post # 123859) I asked, “Am I missing something, or just being too anal?” Answering my own question, there is little doubt in my mind concerning “too anal” portion. :-)

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