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Re: Derivation of the time-azimuth formula
From: Patrick Keenan
Date: 2024 Oct 28, 13:57 -0700
From: Patrick Keenan
Date: 2024 Oct 28, 13:57 -0700
Lars,
Thank you! I had not heard of the "four parts formula".
Do you know the origin of this formula? Is it derived from:
(1) Sin(Hc) =(Cos(LHA)*Cos(Lat)*Cos(Dec))+(Sin(Lat)*Sin(Dec))
(2) Cos (Z) = (Sin(Dec)-(Sin(Lat)*Sin(Hc))/(Cos(Lat)*Cos(Hc))
Pat
