On Thu, 21 Apr 2005 13:42:28 +0200, Jan Vorbrüggen wrote:

Ground-based telescopes can match HST in some ways using adaptive optics,
but there are some things HST does (such as UV) that ground-based
telescopes will never be able to do.
Don't forget loooooooonnnng exposure times.

Nope. Nobody does single long exposures anyway - that happens later on in
the computer. And ground-based telescopes routinely do several-hour integrations.

Is the raw data from "all" exposures routinely saved over the years? A
particular target that is observed this year, last year, 10 years ago?


--
Craig Fink
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