Re: [ATM] Ghosts in the Coulter

["Arjan te Marvelde" <arjan.te.marvelde@hetnet.nl>]

> >Could also be sheering reflection off sharp temperature gradients in air.
>
> This is probably joke and I am eating the bite, but nevertheless,
> can you imagine sharp temperature gradient in air (or anywhere)
> stable in time an orientation.

Yeah, I admit it's not very likely, but you never know?

The drawing of the venus image and ghosts was from memory, so I don't know
just how stable the images were?  Otherwise, Venus is so bright that it
reveals many even minor optical defects in a telescope. In mine for
instance, diffraction from the spider and some more makes it an unpopular
object to me.

I would say that imperfect aluminization and reflection from the mirror back
(mentioned by Jerry) is a good candidate too, especially if the ghosts are
stable. You should be able to see it when looking through the mirror at a
bright lightsource.

   Arjan

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