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Richard Callwood III wrote:
| On Sat, 08 May 2004 11:23:22 +0100, stephen parkinson
| <ste### [at] zmemw16demoncouk> wrote:
|
|
|>also sun seems oversized ?
|
|
| If you are referring to technical realism, then not necessarily. The
| Sun's apparent size depends on the camera's angular field of view.
|
| FYI, the Sun's angular diameter can be calculated by dividing the
| Sun's diameter by the Earth-Sun distance.   This works out, on
| average, to 0.00929 radians, or about 0.53 degree.  So with the Sun
| modeled accurately, if camera { angle 3 } is used, then the Sun
| *would* look as big as in Dave's image.
|
	Remember that we are inside the atmosphere which causes the apparent
size of the sun to change from what it would be viewed from the same
distance in space. In particular, the sun appears bigger when it's
near the horizon, which is the case here...

		Jerome
- --
******************************
*      Jerome M. Berger      *
* mailto:jbe### [at] ifrancecom *
*  http://jeberger.free.fr/  *
******************************
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