[Kstars-devel] Aberration for planets

Jason Harris kstars at 30doradus.org
Sun Nov 20 00:36:12 CET 2005


Yeah, you're probably right.  Want to fix it? :)

Jason


Bernard GODARD wrote:
> Hello,
> 
>>From the code, it seems the computation of the aberration of light
> doesn't take into account the speed of the source of light, only that
> of the observer. It is OK for stars, because stars are assumed to have
> a constant (both in magnitude and orientation) velocity relative to
> "inertial" space, but it is not the case for the planets.  I may be
> wrong but shouldn't the aberration take into account the velocity of
> the Earth relative to the planet, not that of the earth relative to
> the sun? In that case the aberrate() method should be overloaded in
> the KSPlanet class (and for most of the solar system bodies like
> asteroids).
> 
> Thanks,
> 
>                             Bernard
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