Re: prayer time calculation

[Youcef Rabah Rahal <rahal at arabeyes dot org>]

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Salam,

On Saturday 27 March 2004 08:48, Nadim Shaikli wrote:
> --- Omar Abo-Namous <predator12345 at web dot de> wrote:
> > the equation of time is calculated correctly (graph seems to be right),
> > but the Solar Declination isn't. It seems to be right (the graph over one
> > year has the right geometry) but the values are totally wrong.
>
> The person that worked and coded all that up, Thamer, seems to have gone
> missing (ie. he's not reachable via email).  We do have a true astronomer
> amongst us that might help :-)  Youcef, could you please take a look and
> address Omar's question (I'm sure this is child's play for you).

I'm afraid I won't be of much help. I can try but I can't really promise (I am 
quite busy right now, and it's not really a child's play when it comes to 
calculation check :-). Anyway, Omar, it'd be cool to see at least the code 
you're using.

Meanwhile, I suggest the following:

1- Test ITL and see what it outputs for the case you're studying.
2- Compare both codes.

Let me know,

> > Then i tried to set the Solar Declination statically from some other
> > prayer time calculation software (today: D=2.295833;). Still this way,
> > i've a problem with my prayer times: There are some Imaginary parts:
> >
> > Fajr:    11.7977 + 0.1449i
> > Shuruq:  11.7977 + 0.1549i
> > Dhuhr:   12.0071
> > Assr:    12.0798
> > Maghrib: 12.2166 - 0.1549i
> > Ishaa:   12.2166 - 0.1449i
> >
> > i thought perhaps some of the guys who are working on ITL could give me
> > some hints to what it could be?
>
> Salam and sorry for not being much help.
>
>  - Nadim
>
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- -- 
Youcef R. Rahal
Arabeyes.org
http://www.arabeyes.org/~rahal
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