Date: Mon, 15 Mar 1999 08:13:51 -0800
From: "Hutsell, David D" <[EMAIL PROTECTED]>
The "brightness" of the sun is the same as it is here on the surface of earth.
Based on the inverse square law the exposure wouldnt increase untill you were
several million miles closer to the sun. Contrast is high because of no fill,
however if you are flying above a cloud layer this provides an excellent fill
with high sun angles
Dave Hutsell
Lead, Still and Instrumentation
Photography
425-393-7610/425-393-0201 fax
Pager: 206-986-5213
[EMAIL PROTECTED]
> ----------
> From: Andrew Davidhazy[SMTP:[EMAIL PROTECTED]]
> Reply To: [EMAIL PROTECTED]
> Sent: Tuesday, March 09, 1999 3:18 PM
> To: [EMAIL PROTECTED]
> Cc: [EMAIL PROTECTED]
> Subject: How bright
>
> Date: Tue, 09 Mar 1999 14:58:16 -0800 (PST)
> From: Tim Mickleburgh <[EMAIL PROTECTED]>
>
> Does anyone know the brightness of direct sunlight at an altitude of 90km,
> or direct me to a suitible resource? Any thoughts on contrast at that
> altitude would be helpful also - I am assuming that the only "fill" for
> shadows is going to be reflectance from the surface of the Earth.
>
> Thanks,
> Tim Mickleburgh, Primex Aerospace
>
>
