"In terms of what this means?", it had better be good as I just got a new eye in June. It is about 20/40 now and improving. At least Mir/Atlamtis was a great sight in my Binos on the 3rd.
The mirror started out to be a solar telescope, but maybe planetaries are far behind. My excitement was learning how to get rid of the hill in the center. I'll let every one know what first light brings. Thanks again for the encouragement,
Friendly Bob
):-{])) <---- madden@netcom.com madden@svpal.org Remember amateur astronomers: "keep looking for the next Universe"
On Wed, 5 Jul 1995, Eason, Dale wrote:
>
> Bob,
>
> I ran your spherical 5.5" mirror through Tex and into Aperture.
> Aperture says that the transfrer function of your mirror is the same as a
> perfect
> mirror 10% smaller than yours. It also shows that 91% of the focused light
> will
> be in the diffraction disk.
>
> The Tex program says your mirror is about 1/9 wave.
>
> What does all that mean in terms of seeing? I don't know.
>
> If it was me I would try to figure it. If you try long enough you
> will be able to get it. However you are very close to 1/10 wave
> already and Suiter says that there is enough error in reading
> the Foucault test to not beleive any rating over 1/10.
>
>
>
> Dale Eason
>