http://www.solarcostguide.com/solar-photovoltaics/math-prolly-pretty-easy Your Resource for Solar Cost Information Mon, 01 Feb 2010 10:27:35 -0600 http://wordpress.org/?v=2.8.6 hourly 1 http://www.solarcostguide.com/solar-photovoltaics/math-prolly-pretty-easy/comment-page-1#comment-11567 silverlo Sun, 05 Jul 2009 17:26:06 +0000 http://www.solarcostguide.com/solar-photovoltaics/math-prolly-pretty-easy#comment-11567 I'm not exactly sure what you're asking, and I haven't seen the full equation. But, I will say that 9:00 am is half way between 6:00 am and 12 noon. So, it is 45 degrees. This part of your equations seems to simply be changing the time into degrees. The degrees are not based on a circle drawn on the Earth's surface at your location. Because the Sun doesn't stay at the horizon. I'm guessing this is just the first of many equations. :) There is a free program that will help you picture the motion of the Sun in your mind so you can figure out which angles are being discussed at any given time. I’m not exactly sure what you’re asking, and I haven’t seen the full equation.
But, I will say that 9:00 am is half way between 6:00 am and 12 noon. So, it is 45 degrees.
This part of your equations seems to simply be changing the time into degrees. The degrees are not based on a circle drawn on the Earth’s surface at your location. Because the Sun doesn’t stay at the horizon.
I’m guessing this is just the first of many equations.
There is a free program that will help you picture the motion of the Sun in your mind so you can figure out which angles are being discussed at any given time.

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