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From: Michael Ellestad (bowlturner_at_hidden_email_address.net)
Date: 12/04/2004


> Hi all,
>
> I have also looked for Hastings arcs, but did
> not see any convincing sign of them. I need to
> check if I can see them with emboss.
>
> I do not trust that emboss filter too much. It
> may produce some artefacts as almost all
> filters can do. I use mainly unsharp masking
> for looking faint features from (hopefully)
> original files. Usually if something is not
> showing up with USM, it is not there. USM may
> also produce some artefacts especially when
> working with already compressed, enhanced or
> badly scanned photos, so you must be carefull.
>
> Nice simulations, but halos are way too sharp
> and narrow I think. They do not look realistic.
> Try to make it look more like Arto's photos.
> There is also that suncross, which tells me
> that you used homogenous column population,
> which is not the case in nature.
>
> Jarmo

Hi all,

  Yes that maybe true that I am seeing artifacts. The sims were to show the position of the moon at the time of the halos.

Speaking of rare halos I got a faint 9 degree halo around the moon and get this, theres even a video game called HALO and its a combat game.

All of the best,

Michael



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