Re: Problem with this image from MRO?
- From: "George" <george@xxxxxxxxxxxxxxx>
- Date: Wed, 30 May 2007 02:51:38 -0400
"Chris L Peterson" <clp@xxxxxxxxxxxxxxxxxx> wrote in message
news:tlml53ppjot8l9kcasea4s4mt8vqmtausp@xxxxxxxxxx
On Mon, 28 May 2007 13:23:21 GMT, Sam Wormley <swormley1@xxxxxxxxx>
wrote:
Look at the enlarged image from MRO
http://antwrp.gsfc.nasa.gov/apod/ap070528.html
http://antwrp.gsfc.nasa.gov/apod/image/0705/marshole_hirise_big.jpg
It looks like it suffers from "vibration" or a double image... something
is wrong. Any ideas.
I don't see anything I would describe that way. The Sun was only 38°
above the horizon, so the low-relief terrain has a sort of embossed
look. Maybe that's what you are seeing?
The full resolution image of the hole,
http://hiroc.lpl.arizona.edu/images/2007/details/cut/PSP_3647_1745_cut_b.jpg
shows details around the edge very clearly, with no sign of any imaging
problems.
_________________________________________________
Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com
What is amazing about that image is that if the hole is 300 meters across,
as advertized, and it is that dark, that is one deep hole! But then, if
the sun angle is merely grazing, that may account for not being able to see
the bottom. I've seen a lot of deep sink holes (I live in cave country),
and I've never seen one that big or that dark that was so wide open to the
sky. What say you?
George
.
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