Re: [APML] Is this the way the Full Moon should look

[larry mcmanus <lmcmanus@clearpointadv.com>]

Frank

If i'm correct the camera you're using has a focalplane shutter. It looks
like the shutter is not in sync all the way through the exposure.
Larry McManus


on 3/24/03 8:56 AM, Frank Barrett at frankb@celestialwonders.com wrote:

> I need your help understanding this image:
> 
> http://celestialwonders.com/FullMoon.html
> 
> The top of the image looks dark to me for the full moon.  I've consulted
> Peter Chevalley's Virtual Moon Atlas and it shows 100.0% illumination for
> the time of this exposure.  I've also taken 11 other exposures on this
> same evening (bracketing and rechecking focus) and they all exhibit this
> darkening to some extent.  I'm wondering if I caught the earth's shadow in
> an *almost* lunar eclipse?  Anyone know how I could validate that?  The
> exposure was on 11/19/2002 at about 22:30 EST.  Thanks.
> 
> Frank Barrett
> http://celestialwonders.com
> 
> 
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