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Hc formula difference why?
From: Herman Dekker
Date: 2017 Nov 21, 02:25 -0800
From: Herman Dekker
Date: 2017 Nov 21, 02:25 -0800
The formula for solving the calculated height, in the celestial triangle, is written in different order and ways.
You see Hc=arcSin((Cos L • Cos d • Cos t) + (Sin L • Sin d))
Hc=arcSin((Cos L • Cos d • Cos t) +/- (Sin L • Sin d))
Hc=arcSin((Cos L • Cos d • Cos t) ~ (Sin L • Sin d))
Hc=arcSin((Sin L • Sin d)+(Cos L • Cos d • Cos t) )
And people ad it with different rules. For instance I remember ~ says subtract the smallest value from the biggest??
Why al these differences, is it a kind of interpretation?
What is the "original" formula?
Regards,
HermanD
