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Anika Saw

The Blank Calendar Word& PDF

We describe in detail underneath the equipment that we use now not most effective for setting up a rigorously actual calendar for Makkah, however for all the other international locations of the arena. good

At every new moon, we first trace the visibility curves for the crescent according to the method now well admitted via the Muslim network. Elaborated by the British mathematician B. D. Yallop, this technique turned into a great deal advanced with the aid of Syed Khalid Shaukat. good

it's far his visibility curves that we hire. the explanation of those curves may be found on his website www.moonsighting.com. For each factor on the earth between the latitudes 60° N and 60° S, the exclusive curves supply the possibility of staring at the young crescent. in step with the type of Yallop, we've: good

The green field which means clean visibility with the naked eye. The blue discipline which means easy visibility with the bare eye beneath right atmospheric conditions.  good

the gray subject meaning visibility with optical useful resource. The pink field meaning visibility with effective optical aid. The black subject that means no visibility possible.  preference of a reference point for calculating extended visibility.  good

once we have established the visibility curves for the start of each lunar cycle, we look for the point of reference within these curves in order to serve for making use of our idea of extended visibility. searching on the curves, we word that the primary point of visibility with the naked eye is always situated within the blue area that precedes the inexperienced one. it is as a consequence logical to select as reference factor one in the blue region.  good

however, we do no longer choose as factor of reference the first actual factor of visibility at the tip of the blue quarter, but some other one within the blue sector at three° similarly west than the top, following the longitude of the end. allow us to call this factor the factor P. the choice inside the blue zone is dictated by using the subsequent argument: good

 

Posted in الزراعة on April 08 at 02:19 PM

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