From: email@example.com (Henry Spencer)
Subject: Re: Clementine Photos of Apollo Hardware on Lunar surface?
Date: Fri, 29 Dec 2000 23:17:33 GMT
In article <firstname.lastname@example.org>, Ed <email@example.com> wrote:
>a job for some 'spare' time on Hubble - surely make some poster sales
>too for all us space enthusiasts
Nope. Hubble has nowhere near the resolution required.
The diffraction limit on the performance of optical instruments is not
rocket science, guys. :-) To a crude first approximation, it's simply
range*wavelength = resolution*diameter. So at 400,000km, using (say)
500nm light, achieving 1m resolution -- enough to show the rough shape
of something like the LM -- requires a telescope 200m in diameter, two
orders of magnitude larger than Hubble.
When failure is not an option, success | Henry Spencer firstname.lastname@example.org
can get expensive. -- Peter Stibrany | (aka email@example.com)