[Kstars-devel] Elevation correction for rising/setting times

[Jason Harris]

Hi Pablo,

I'm a bit worried that the Moon's correction has the opposite sign of 
everything else. 

(1) It looks like we are not applying the correction for the Moon's 
Angular size, as we do for the Sun:

Sun:  correction = -34 (refract) + -16 (angular radius) = -50
Moon: correction = -34 (refract) + 0.7275*P (parallax) = +0.125

(2) The moon's coordinates already include a correction for parallax (a.
k.a. "figure of the Earth").  Are we correcting for it unnecessarily?

regards,
Jason

On Wednesday 03 September 2003 04:57 am, Pablo de Vicente wrote:
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> Hash: SHA1
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> Hello,
>
>    I have finally had a look at the elevationCorrection function in
> the SkyObject class. I apologize for the delay, but I was on a trip
> for some days.
>
>   The function had two errors which I made when I wrote the function
> and which I have corrected now.  I have also added a comment in the
> code explaining where the values come from. I have commited the
> changes to the CVS (head and 3.1.3 branch). I have to download the
> debian branch to correct it there also.
>
> regards,
>
> Pablo.
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KStars: A KDE Planetarium
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