Re: Questions about future of space telescopy
From: Constitutional Crisis (amercrises_at_ai5.net)
Date: 11/24/04
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Date: Wed, 24 Nov 2004 00:27:15 -0600
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Sam Wormley wrote:
> petro12@mail.com wrote:
> > I have a couple questions, they all related to the future of spece
> > telescopes:
> >
> > 1. Hubble's Telescope has < 0.1 arcsec resolution in visible and
> > ultraviolet ranges. What is the next resolution level that can bring
> > substantially new knowledge about the Universe ? Of course the higher
> > resolution the better, but what is a thershold to gain new knowledge ?
> >
> > 2. As far as I know there is deep interest in using far infrared to
> > peek into the centre of our Galaxy. What is the current limiting
> > factor here - resolution (mirror size), or a need to cool the
> > telescope down ? In case of cooling - is it enough to shield the
> > telescope in space to bring the temperature its elements close to 0K,
> > or it has to be launched far off Earth orbit (far from the Sun), or
> > some active cooling can be used ?
> >
> > 3. Telescopes interferometry can be used to achieve much higher
> > "resolution", provided that the shape of the observation object is
> > known. My queston is - what it can be used for, in addition to
> > measuring stellar diameters, distances between double stars, etc ?
> > What are the limitations there ?
> >
> > I would also highly appreciate a pointer to good Web resources, or
> > literature, on these topics.
>
> See: http://www.seds.org/billa/bigeyes.html
> http://www.edu-observatory.org/eo/telescopes.html
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