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From: Timo Nousiainen (tpnousia_at_hidden_email_address.net)
Date: 11/15/1996



Veikko M{kel{: "Re: Glory on the Ground" (Nov 14, 15:48):
> > I must disagree here a bit. The opposition effect on moon is only
partly
> > caused by disappearance of shadows. There is also significant
> > contribution from coherent backscattered light due to multiple
> > scattering at the lunar surface.
>
>
> The opposition effect or "dry heiligenschein" on ground is caused
> only by disappering shadows, I guess. This effect is seen often
> seen on cutted field (seen as a light pillar better than only
> brightning around anti-solar point), on sandy ground or on forest
> area observed from plane.
>

Do you mean that the brightening of moon is only caused by disappearing of shadows, or that the term "opposition effect" only consist of this shadow effect?

  • Timo